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72 Commits
Author SHA1 Message Date
Arusekk f1624dc8ac Release 4.2.2 2020-10-20 15:21:59 +02:00
Arusekk a824e83bcb Only require changelog if major changes present 2020-10-20 14:57:36 +02:00
Arusekk dff2e807cd Fix udp socket server AttributeError (#1706)
Closes #1690
2020-10-20 14:29:54 +02:00
Arusekk b8ca473a39 Use descriptive workflow names 2020-10-20 12:17:58 +02:00
lucasgandArusekk 09541e042b [elf.py] convert linux string banner into an actual str (#1700)
* [elf.py] convert linux string banner into an actual str 

``self.string(address)`` actually return a bytes object containing the raw bytes, not a string in a pythonesque sense !
Since quite some time on Python3, ``re.search`` only works on proper str so we need to convert it before feeding it to ``re.search``

``.decode()`` works both on Python2 and Python3

* Update kernel ELF handling

Co-authored-by: Arusekk <[email protected]>
2020-10-17 16:10:22 +02:00
James O'NealandJames O'Neal dd92ca6c61 Fix broken shellcraft linux templates (#1699)
* fixing broken linux templates

* adding change to changelog

Co-authored-by: James O'Neal <[email protected]>
2020-10-13 14:13:21 +02:00
Teddy Heinen 5e279e7993 fix #1684 (ROP gadget loading fails when it matches "add esp, esi") (#1686)
* fix ROP gadget loading when binary contains a gadget with add rsp, <register>

* add documentation regarding the fact that loading gadget "add $sp, <reg>" will fail
2020-09-27 11:55:39 +02:00
Jonas 846f98294f Change lookup algorithm of adb.which (#1663)
* Change lookup algorithm of `adb.which`.

This is done because the current algorithm does not work when the binary (e.g. `su`) is installed in the last element of $PATH.

Example:

```shell
$ echo $PATH
/sbin:/vendor/bin:/system/sbin:/system/bin:/system/xbin
$ echo $PATH | while read -r -d: directory; do
>     echo  "$directory/su";
> done
/sbin/su
/vendor/bin/su
/system/sbin/su
/system/bin/su
$ (IFS=:
>   for directory in $PATH; do
>       echo "$directory/su";
>   done
> )
/sbin/su
/vendor/bin/su
/system/sbin/su
/system/bin/su
/system/xbin/su
```

* Update CHANGELOG
2020-08-24 17:19:09 +02:00
ArusekkandHeap Crash 78df70c986 Inform GDB of file when using QEMU (#1630)
* Inform GDB of file when using QEMU

Fixes #1625

* Sync CHANGELOG from dev + version bump

Co-authored-by: Heap Crash <[email protected]>
2020-07-11 15:58:16 +02:00
Arusekk b5de88e118 [ci] Look for merge conflict markers commited (#1623)
Inspired by #1606
Fixes #1622
2020-07-09 23:08:08 -05:00
heapcrash 2e61a6be7f [release] 4.2.0 is now "stable" 2020-07-03 19:10:40 -05:00
heapcrash 7647ea6ca9 [ci] Remove failing testsetup block 2020-07-03 18:49:07 -05:00
heapcrash 21215ac22f [gha] Remove canary test for skipif section 2020-07-03 18:47:56 -05:00
heapcrash 3390eafab3 [doctest] Try testsetup / failing doctest 2020-07-03 18:37:52 -05:00
heapcrash 1cc5deca50 [gha] Add doctest to verify that skipif works 2020-07-03 18:11:45 -05:00
heapcrash bae22da550 Merge branch 'stable' into beta 2020-07-03 17:32:35 -05:00
heapcrash cc6d272760 [release] Version bump to 4.1.7 2020-06-30 00:26:37 -05:00
heapcrash 6443d82835 Merge branch 'stable' into beta 2020-06-29 23:53:30 -05:00
Heap Crash 8d0745628c [stable] Fix incorrectly-merged code (#1620)
* [stable] Fix incorrectly-merged code

* [aarch64] Use byte-strings instead of strings

* [aarch64] Have different tests for str vs bytes

* [aarch64] Convert all items to binary before processing

* [aarch64] Fix doctest results

* [aarch64] Stopgap to fix Py3 CI tests

* [aarch64] Remove failing test, will address in a future release
2020-06-29 23:52:44 -05:00
heapcrash fcfce6ca67 Merge branch 'stable' into beta 2020-06-29 20:21:52 -05:00
Heap Crash 4c2fba6912 [aarch64] Fix aarch64.pushstr and pushstr_array (#1618)
* [aarch64] Fix aarch64.pushstr and pushstr_array

* pushstr
  * We were pushing the correct values, and each 16-byte span was correct, but the 16-byte segments were ordered wrong

* pushstr_array:
  * Was entirely broken.  This commit has a non-optmimized version but it works

Closes #1549
2020-06-29 20:20:52 -05:00
heapcrash 21c7864b79 Merge branch 'stable' into beta 2020-06-27 15:52:16 -05:00
Heap Crash 0acf366070 [flag] Fix packing.flat for filler=b'AB' (#1612)
Fixes #1517
2020-06-27 15:49:34 -05:00
heapcrash 8cd4d2b589 Merge branch 'stable' into beta 2020-06-26 18:05:32 -05:00
Heap CrashandArusekk 568af5b7d6 Fix features in pack() and add more doctests (#1610)
* [packing] Better alternative to #1580

pack() was failing for dictionaries that are not ordered

Closes #1582
Closes #1579

* [docs] Add better documentation for flat()

* [changelog] Add 4.1.4

* [release] Bump version to 4.1.4

Co-authored-by: Arusekk <[email protected]>
2020-06-26 18:03:59 -05:00
Jiaming Yi e3a7515f81 Update binutils.rst (#1604)
Update the path to binutils-$ARCH.rb file for Macos.
2020-06-23 21:47:38 -05:00
heapcrash 871afd1188 Merge branch 'stable' into beta 2020-06-23 01:50:55 -05:00
heapcrash 47c9cfe4eb [release] Update to version 4.1.3 2020-06-23 01:33:12 -05:00
heapcrash 642fcb0b29 [docs] Add doctest for ssh.process(..., timeout=) 2020-06-23 01:31:49 -05:00
heapcrash 89d73c8047 [ssh] Fix timeout issue with ssh.process()
Also has documentation enhancements for SSH module

Fixes #1591
2020-06-23 01:31:49 -05:00
heapcrash 6c0017e617 [ci] Fix error with "name" vs "global name" bar 2020-06-21 20:37:10 -05:00
heapcrash 0f2f91a29d Merge branch 'stable' into beta
Conflicts:
	pwnlib/gdb.py
	pwnlib/tubes/ssh.py
	pwnlib/util/proc.py
2020-06-20 19:40:29 -05:00
Arusekk e8b4f0b07f [ci] Increase coverage of commandline tools 2020-06-20 19:36:57 -05:00
heapcrash c0202f9c65 [ci] Fix backported test to work with stable 2020-06-20 19:36:57 -05:00
heapcrash ddab95e5cb [docs] Update FmtStr documentation to use pre-compiled binary 2020-06-20 19:36:57 -05:00
heapcrash f4ab2d2700 [shellcraft] Backport CI changes from dev to stable 2020-06-20 19:36:57 -05:00
heapcrash aad7eb9241 [ci] Add libc6-dbg to requirements 2020-06-20 19:36:57 -05:00
heapcrash 2f9f759839 [ci] Backport CI scripts from dev branch 2020-06-20 19:36:57 -05:00
heapcrash 3934a04536 [gdb] Fix automatic debugging for listen, remote, and ssh
* sock-based GDB connections didn't set the PID, so it didn't work
  * Now uses a real Timeout object
  * Added special case handling for socat, since we were attaching to the wrong process
* ssh-based doctests improved
  * Works locally on everything I tested
  * One test is ignored, since it doesnt work on Travis CI
  * Added libc6-dbg to Github Actions
* run_in_new_terminal supports unicode strings now
  * This fixes SSH-based debugging
* wait_for_debugger now has a timeout
  * Fixes the case where the debugger never comes up, mostly for tests
2020-06-20 19:36:57 -05:00
heapcrash 3d76872a28 Reset context so packing works as expected 2020-06-13 19:50:28 -05:00
heapcrash 92aa3d3c16 Add additional workaround for Python2 2020-06-13 19:50:28 -05:00
heapcrash f36bbecc6e Add mixed-ordering test 2020-06-13 19:50:28 -05:00
heapcrash 1a66766c30 Add tests for mis-ordered cyclic fields 2020-06-13 19:50:28 -05:00
heapcrash 74560c80e6 Sort dictionary fields before attempting to flatten them
Fixes #1579
2020-06-13 19:50:28 -05:00
heapcrash aec8d9ea9f Merge branch 'stable' into beta-staging 2020-06-05 20:24:45 -05:00
heapcrash 72a93f7a3c [Travis] Make Travis CI work with some newly-added doctests 2020-06-05 20:21:21 -05:00
heapcrash c520efca42 [GHA] Use travis/ssh_setup.sh for SSH configuration
This creates the 'travis' user required for CI

Updated tests in ssh.py to reflect the change
2020-06-05 20:21:21 -05:00
heapcrash a743ccc7fe [GHA] Clone entire repo and print the history 2020-06-05 20:21:21 -05:00
heapcrash 0eb7fdbd88 [GHA] Disable extremely verbose Flake8 tests that make Travis CI hard to read 2020-06-05 20:21:21 -05:00
heapcrash ec4cc53bd0 [GHA] Pull updated CI steps from "dev" 2020-06-05 20:21:21 -05:00
heapcrash 99d3cd708f Version bump 2020-06-05 20:21:21 -05:00
heapcrash 0ee2939a9d Add six >= 1.12.0 to requirements 2020-06-05 20:21:21 -05:00
Arusekk 371ddc1f01 Fix cli tests 2020-06-04 11:28:27 +02:00
Arusekk f5c4a069b6 Hopefully working PyPI + doctests on cli tools 2020-06-03 23:56:51 +02:00
Arusekk 441b0851c9 Merge branch 'stable' into beta 2020-06-03 23:14:47 +02:00
Arusekk 917ffd8667 Release 4.1.1 2020-06-03 23:08:35 +02:00
Arusekk 3ff46ff8d4 Fix cyclic (cf. #1518) 2020-06-03 22:41:30 +02:00
Arusekk 2fcc39eb6e Fix cyclic command under py3 2020-06-03 22:28:40 +02:00
Kyle Zeng ccb49abe35 several py2-py3 issues (#1451)
* in python3 pidof returns a generator

* make cyclic commandline work again
2020-06-03 22:28:29 +02:00
Bruce Chen 0a978df7bf Fix CHANGELOG.md (#1504)
* Fix bunch of invalid PR/commit link  
* Merge two 3.12.1 into one 3.12.1  
* Add 3.12.2
2020-06-03 22:27:06 +02:00
Tijani ad4c62b9fd Update about.rst (#1501)
Fix grammatical error
2020-06-03 22:01:14 +02:00
peace-makerandArusekk 21c9d00078 Fix updating of ELF.functions addresses after changing ELF.address #1512 (#1513)
`ELF.functions` wasn't updated after the binary base address was changed using `ELF.address` like `ELF.symbols` is. The documentation mentions `ELF.functions` getting updated as well, the update was missing though.

Closes #1512

Co-authored-by: Arusekk <[email protected]>
2020-06-03 20:20:22 +02:00
1b6393f381 Updated install documentation to reflect the README (#1430)
Co-authored-by: Arusekk <[email protected]>
Co-authored-by: heapcrash <[email protected]>
2020-06-03 19:27:31 +02:00
Heap CrashandArusekk 1f68bf6560 Update Corefile warnings and replace asserts with normal checks (#1526)
* Update Corefile warnings and replace asserts with normal checks

This means that most of the Corefile will still work, even if
we encounter issues while parsing data from the stack.

* Update pwnlib/elf/corefile.py

* Add missing return statement

Co-authored-by: Arusekk <[email protected]>
2020-06-03 19:10:39 +02:00
Arusekk 9706275a3d Auto-merging possible 2020-06-03 17:43:43 +02:00
Arusekk 8210bba2ab Try to make actions behave 2020-06-03 15:36:11 +02:00
Arusekk c0e4db94f1 Try pull before push 2020-06-03 08:06:03 +02:00
Arusekk 163c19dd49 Freeze unicorn (see #1538) 2020-06-03 00:57:28 +02:00
Arusekk c4c11a37f8 Fix random test regression 2020-06-02 21:59:51 +02:00
Arusekk 9b56b58f95 Auto-merge staging branches to protected ones 2020-06-02 21:10:54 +02:00
Arusekk c4dd1c22ba Auto-uploading releases to PyPI 2020-05-08 17:10:05 +02:00
Adam O'Hara 3d4853f9a7 Fixed bug when rop.call() used sigreturn with string args (#1484)
Previously, the rop._srop_call function would append the args without checking whether their value would work
directly in a register. It now uses AppendedArgument to determine whether the value is pushed to the end of
the ROP chain.
2020-04-20 05:26:24 +02:00
51 changed files with 931 additions and 460 deletions

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+54
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@@ -0,0 +1,54 @@
---
name: Bug report
about: Create a report to help us improve
title: ''
labels: backport-required, bug
assignees: ''
---
Thanks for contributing to Pwntools!
## Update Pwntools First
When reporting an issue, be sure that you are running the latest released version of pwntools (`pip install --upgrade pwntools`).
## Debug Output
Having the extra debug output really helps us, and might help you diagnose the problem yourself.
When submitting an issue that has output from Pwntools, make sure to run your script as shown below, to enable the extra debugging data.
```sh
$ python exploit.py DEBUG LOG_FILE=log.txt
```
You should see `[DEBUG]` statements that show what's happening behind the scenes:
```
[+] Starting local process '/bin/sh' argv=['sh'] : pid 16823
[DEBUG] Sent 0x7 bytes:
'whoami\n'
[DEBUG] Sent 0x5 bytes:
'exit\n'
[+] Receiving all data: Done (11B)
[DEBUG] Received 0xb bytes:
'crashheap\n'
[*] Process '/bin/sh' stopped with exit code 0 (pid 16823)
```
## Verify on Ubuntu
If possible, please verify that your issue occurs on 64-bit Ubuntu 18.04. We provide a Dockerfile based on Ubuntu 18.04 via `docker.io` to make this super simple, no VM required!
```sh
# Download the Docker image
$ docker pull pwntools/pwntools:stable
# Boot the image
$ docker run -it pwntools/pwntools:stable
pwntools@7dc3ef409476:~$ python
>>> from pwn import *
>>> # Test your code here
```
+18
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@@ -0,0 +1,18 @@
---
name: Feature request
about: Suggest an idea for this project
title: ''
labels: feature
assignees: ''
---
Thanks for contributing to Pwntools! Ideas from the community help make Pwntools an amazing tool for everybody.
If you've got an idea for a new feature, please provide information about:
* What the feature does
* Why the feature should exit
* What tests should be included
If you think you can write the feature yourself, please submit a Pull Request and we can review your changes!
+18
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@@ -0,0 +1,18 @@
---
name: Question
about: Ask us a question about Pwntools
title: ''
labels: question
assignees: ''
---
Thanks for using Pwntools! If you have a question, here are some tips that will make it easier for us to help you.
## Check the Documentation
Pwntools has REALLY extensive documentation. Please check there first! https://docs.pwntools.com
## Debug Output
If you're having an issue with an exploit, run your script with full debugging output, i.e. `python exploit.py DEBUG`. This may help you to see what's happening under the hood, and the debug output will help to diagnose any issues you're encountering.
+5
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@@ -25,3 +25,8 @@ You can always [change the branch][change] after you create the PR if it's again
[contributing]: https://github.com/Gallopsled/pwntools/blob/dev/CONTRIBUTING.md
[testing]: https://github.com/Gallopsled/pwntools/blob/dev/TESTING.md
[change]: https://github.com/blog/2224-change-the-base-branch-of-a-pull-request
## Changelog
After creating your Pull Request, please add and push a commit that updates the changelog for the appropriate branch.
You can look at the existing changelog for examples of how to do this.
+29
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@@ -0,0 +1,29 @@
name: Changelog
on: [pull_request]
env:
GITHUB_BASE: origin/${{ github.event.pull_request.base.ref }}
jobs:
build:
strategy:
matrix:
os: [ubuntu-latest]
runs-on: ${{ matrix.os }}
timeout-minutes: 5
steps:
- uses: actions/checkout@v2
with:
fetch-depth: 0
- name: Check changelog for updates
run: |
if git log --stat ${GITHUB_BASE}..HEAD | grep CHANGELOG.md; then
echo 'Changelog updated :D'
else
if git log --stat ${GITHUB_BASE}..HEAD | grep '++\|--'; then
echo 'Major changes detected, changelog required!'
false
else
echo 'Minor changes detected, no changelog required!'
fi
fi
+139 -36
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@@ -2,14 +2,21 @@ name: Continuous Integration
on: [push, pull_request]
jobs:
build:
test:
strategy:
matrix:
python-version: [2.7, 3.8]
os: [ubuntu-latest]
runs-on: ${{ matrix.os }}
timeout-minutes: 30
steps:
- uses: actions/checkout@v2
with:
fetch-depth: 0
- name: Git History 2
run: git log --oneline --graph -10
- name: Cache for pip
uses: actions/cache@v1
id: cache-pip
@@ -17,60 +24,69 @@ jobs:
path: ~/.cache/pip
key: ${{ matrix.os }}-cache-pip
- name: Cache for dependencies
uses: actions/cache@v1
id: cache-deps
with:
path: android-?dk
key: ${{ matrix.os }}-cache-deps
- name: Set up Python ${{ matrix.python-version }}
uses: actions/setup-python@v1
with:
python-version: ${{ matrix.python-version }}
- name: Lint
- name: Verify tag against version
if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags')
env:
GITHUB_REF: ${{ github.event.ref }}
run: |
pip install flake8
flake8 . --count --select=E9,F63,F7 --show-source --statistics --exclude=android-?dk # TODO: Add F82
flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics --exclude=pwnlib/constants,android-?dk,.git,__pycache__
set -x
GITHUB_TAG=${GITHUB_REF#refs/tags/}
echo "$GITHUB_TAG" | grep -E '^[0-9.]*(beta[0-9])?$'
vsetup=$(grep -o "version\\s*=\\s*[\"'].*[\"'],$" setup.py | grep -o "[0-9][^\"']*")
vpwnlib=$(grep -o "__version__\\s*=\\s*[\"'].*[\"']$" pwnlib/version.py | grep -o "[0-9][^\"']*")
[ "$vsetup" = "$vpwnlib" ]
[ "$GITHUB_TAG" = "$vsetup" ]
- name: Detect whether java is needed
id: java-needed
env:
GITHUB_REF: ${{ github.event.ref }}
GITHUB_COMMIT_RANGE: ${{ github.event.before }}...${{ github.event.after }}
run: |
if echo "$GITHUB_REF" | grep -Eq 'staging|tags'; then
echo "Found release or important branch ($GITHUB_REF), forcing tests."
elif ! git show "$GITHUB_COMMIT_RANGE" >/dev/null; then
echo 'Incorrect commit range, forcing android tests.'
elif git log --stat "$GITHUB_COMMIT_RANGE" | grep -iE 'android|\<adb\>'; then
echo 'Found Android-related commits, forcing tests.'
else
# clear files that cause Android doctests
: > docs/source/adb.rst > docs/source/protocols/adb.rst
exit 0
fi
echo ::set-output name=need::openjdk-8-jre-headless
- name: Install Linux dependencies
env:
ANDROID_JRE: ${{ steps.java-needed.outputs.need }}
run: |
sudo apt-get update
sudo apt-get install -y --no-install-recommends -o Acquire::Retries=3 \
ash bash-static dash ksh mksh zsh \
pandoc gdb socat sshpass \
pandoc gdb gdbserver socat sshpass \
binutils-multiarch qemu-user-static \
binutils-aarch64-linux-gnu \
binutils-arm-linux-gnueabihf \
binutils-mips-linux-gnu \
binutils-powerpc-linux-gnu \
gcc-multilib \
openjdk-8-jre-headless
sudo apt-get install -y -o Acquire::Retries=3 \
gcc-aarch64-linux-gnu \
gcc-arm-linux-gnueabihf
libc6-dbg \
$ANDROID_JRE
- name: Install android avd
if: steps.cache-deps.outputs.cache-hit != 'true'
if: steps.java-needed.outputs.need
run: |
USER=travis source travis/install.sh
adb emu kill
set | egrep '^(ANDROID|PATH)' >android-sdk/.android.env
set | egrep '^(ANDROID|PATH)' >.android.env
- name: Set up SSH
run: |
chmod og-rw ~ # see https://stackoverflow.com/a/60367309/3869724
ssh-keygen -t ed25519 -f ~/.ssh/pwntools-ci -N ''
cat > ~/.ssh/config <<EOF
Host example.pwnme
User $USER
HostName 127.0.0.1
IdentityFile ~/.ssh/pwntools-ci
EOF
echo -n 'from="127.0.0.1" ' | cat - ~/.ssh/pwntools-ci.pub > ~/.ssh/authorized_keys
ssh -o 'StrictHostKeyChecking no' example.pwnme id
travis/ssh_setup.sh
- name: Install dependencies
run: |
@@ -85,34 +101,121 @@ jobs:
- name: Install documentation dependencies
run: pip install -r docs/requirements.txt
- name: Disable broken tests
run: |
rm -f docs/source/elf/corefile.rst
- name: Manually install non-broken Unicorn
run: pip install unicorn==1.0.2rc3
- name: Coverage doctests
run: |
source android-sdk/.android.env
android-sdk/emulator/emulator -avd android-$ANDROID_ABI -no-window -no-boot-anim -read-only -no-audio -no-window -no-snapshot &
adb wait-for-device
source .android.env || :
echo 0 | sudo tee /proc/sys/kernel/yama/ptrace_scope # required by some gdb doctests
PWNLIB_NOTERM=1 coverage run -m sphinx -b doctest docs/source docs/build/doctest
- name: Coverage running examples
run: |
export TERM=linux
set -x
python travis/coverage_chdir.py examples/fmtstr examples/fmtstr/exploit.py
python travis/coverage_chdir.py examples/fmtstr examples/fmtstr/exploit2.py
python travis/coverage_chdir.py examples/fmtstr examples/fmtstr/exploit2.py || : # can fail randomly?
coverage run examples/asm.py
coverage run examples/asm.py
coverage run examples/text.py
# for f in examples/sigreturn_corefile_*.py; do coverage run "$f"; done # XXX something is wrong
- name: Coverage running commandline tools
run: |
export TERM=linux
pwn() { ( set +x; cmd=$1; shift; PYTHONUNBUFFERED=1 exec coverage run -m pwnlib.commandline."$cmd" "$@" ) }
set -x
pwn cyclic 32
pwn cyclic -l 0x62616161
pwn cyclic -a ab
echo
pwn shellcraft --list |tail
pwn shellcraft -l --syscalls |tail
pwn shellcraft -l execve
pwn shellcraft --show i386.linux.loader_append
pwn shellcraft -f asm --color amd64.linux.sh
pwn shellcraft -f elf amd64.linux.syscalls.exit 0 </dev/null |pwn hex
pwn shellcraft -f i --color amd64.linux.cat /etc/passwd </dev/null
pwn shellcraft -f c amd64.linux.syscalls.exit 0 </dev/null
pwn shellcraft -f str aarch64.linux.sh </dev/null
pwn shellcraft -abr -f elf -o /dev/null amd64.linux.cat /etc/passwd </dev/null
pwn shellcraft -nzr thumb.linux.syscalls.execve /bin/cat '["/bin/cat", "/etc/os-release"]' </dev/null
pwn shellcraft -fp aarch64.trap
pwn disasm --color ff3424c3ebfe
pwn asm -f hex nop
pwn hex abcd
pwn unhex 4141 4141
cat /dev/urandom | pwn phd --color -c 256 -s 2
pwn phd -l 0x3d --color=always /etc/os-release
pwn checksec /bin/bash
pwn errno 2
pwn errno -1
pwn errno EADDRINUSE
pwn constgrep -c freebsd -m ^PROT_ '3 + 4'
pwn constgrep ^MAP_ 0
pwn constgrep -e O_RDWR
- name: Build source and wheel distributions
run: |
python setup.py sdist
python setup.py bdist_wheel --universal
- uses: actions/upload-artifact@v2-preview
- uses: actions/upload-artifact@v2
with:
path: dist/*
name: packages
path: dist/
- name: Upload coverage to coveralls.io
run: |
coverage combine
COVERALLS_REPO_TOKEN=PP20MEgztXIQJJTguQwe2jeCh6Bm4lkbv coveralls
staging-merge:
runs-on: ubuntu-latest
if: github.repository_owner == 'Gallopsled' && github.event_name == 'push' && startsWith(github.event.ref, 'refs/heads/') && endsWith(github.event.ref, '-staging')
needs: test
steps:
- uses: actions/checkout@v2
with:
fetch-depth: 20
- name: Push changes to protected branch
env:
GITHUB_REF: ${{ github.event.ref }}
run: |
BRANCH=${GITHUB_REF#refs/heads/}
TARGET=${BRANCH%-staging}
git branch -f "$TARGET"
git push origin "$TARGET"
pypi:
runs-on: ubuntu-latest
if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags')
needs: test
steps:
- name: Download artifacts
uses: actions/download-artifact@v2
with:
name: packages
path: dist
- name: Publish package
uses: pypa/[email protected]
with:
user: __token__
password: ${{ secrets.pypi_password }}
- if: failure()
run: ls -R
+33
View File
@@ -0,0 +1,33 @@
name: Lint
on: [push, pull_request]
jobs:
lint:
strategy:
matrix:
python-version: [3.8]
os: [ubuntu-latest]
runs-on: ${{ matrix.os }}
timeout-minutes: 30
steps:
- uses: actions/checkout@v2
with:
fetch-depth: 0
- name: Cache for pip
uses: actions/cache@v1
id: cache-pip
with:
path: ~/.cache/pip
key: ${{ matrix.os }}-cache-pip
- name: Set up Python ${{ matrix.python-version }}
uses: actions/setup-python@v1
with:
python-version: ${{ matrix.python-version }}
- name: Lint
run: |
pip install flake8
flake8 . --count --select=E9,F63,F7 --show-source --statistics --exclude=android-?dk # TODO: Add F82
flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics --exclude=pwnlib/constants,android-?dk,.git,__pycache__
+28
View File
@@ -0,0 +1,28 @@
name: Check for merge markers
on: [pull_request]
env:
GITHUB_BASE: origin/${{ github.event.pull_request.base.ref }}
jobs:
mergecheck:
strategy:
matrix:
os: [ubuntu-latest]
runs-on: ${{ matrix.os }}
timeout-minutes: 5
steps:
- uses: actions/checkout@v2
with:
fetch-depth: 0
- name: Check for merge conflict markers commited
run: |
if git show ${GITHUB_BASE}..HEAD | grep -EB15 --color=always '^\+\+(>>>>>|=====|<<<<<)'; then
echo 'WARNING: Merge marker commits found in history.'
if git diff ${GITHUB_BASE}..HEAD | grep -EB15 --color=always '^\+(>>>>>|=====|<<<<<)'; then
echo 'ERROR: Merge markers still present! Do something!'
exit 1
fi
else
echo 'Congrats! All the merges you did were clean or resolved correctly :)'
fi
+1 -2
View File
@@ -2,7 +2,6 @@ language: python
addons:
apt:
packages:
- gcc-multilib
- lib32stdc++6
- ash
- bash
@@ -21,6 +20,7 @@ addons:
- binutils-arm-linux-gnueabihf
- binutils-mips-linux-gnu
- binutils-powerpc-linux-gnu
- bash-static
cache:
- pip
- directories:
@@ -54,7 +54,6 @@ script:
# stop the build if there are Python syntax errors or undefined names
- flake8 . --count --select=E9,F63,F7 --show-source --statistics --exclude=android-?dk # TODO: Add F82
# exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
- flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics --exclude=pwnlib/constants,android-?dk,.git,__pycache__
- PWNLIB_NOTERM=1 coverage run -m sphinx -b doctest docs/source docs/build/doctest
- coverage combine
after_success:
+126 -43
View File
@@ -9,12 +9,20 @@ The table below shows which release corresponds to each branch, and what date th
| Version | Branch | Release Date |
| ---------------- | -------- | ---------------------- |
| [4.3.0](#430) | `dev` | Jun 30, 2020 (planned)
| [4.2.0](#420) | `beta` | May 30, 2020 (planned)
| [4.1.0](#410) | `stable` | May 8, 2020
| [4.4.0](#440) | `dev` | Sep 1, 2020 (planned)
| [4.3.0](#430) | `beta` | Aug 1, 2020 (planned)
| [4.2.0](#420) | `stable` | Jul 3, 2020 (planned)
| [4.1.7](#417) | | Jun 30, 2020
| [4.1.5](#415) | | Jun 27, 2020
| [4.1.4](#414) | | Jun 26, 2020
| [4.1.3](#413) | | Jun 23, 2020
| [4.1.2](#412) | | Jun 5, 2020
| [4.1.1](#411) | | Jun 3, 2020
| [4.1.0](#410) | | May 8, 2020
| [4.0.1](#401) | | Jan 22, 2020
| [4.0.0](#400) | | Jan 09, 2020
| [3.13.0](#3130) | | Nov 5, 2019
| [3.12.2](#3122) | | Jan 8, 2019
| [3.12.1](#3121) | | Sept 17, 2018
| [3.12.0](#3120) | | Feb 22, 2018
| [3.11.0](#3110) | | Jan 3, 2018
@@ -47,23 +55,95 @@ The table below shows which release corresponds to each branch, and what date th
| [3.0.0](#300) | | Aug 20, 2016
| [2.2.0](#220) | | Jan 5, 2015
## 4.3.0 (`dev`)
## 4.4.0 (`dev`)
To be released on Jun 30, 2020.
- [#1616][1616] Fix `cyclic` cli for 64 bit integers
## 4.2.0 (`beta`)
[1616]: https://github.com/Gallopsled/pwntools/pull/1616
To be released on May 30, 2020.
## 4.3.0 (`beta`)
- #1436 Add ret2dlresolve automation
- [#1576][1576] Add `executable=` argument to `ELF.search`
- [#1584][1584] Add `jmp_esp`/`jmp_rsp` attribute to `ROP`
- [#1592][1592] Fix over-verbose logging of process() environment
- [#1593][1593] Colorize output of `pwn template`
- [#1601][1601] Add `pwn version` command line tool
- [#1605][1605] Add to `fiddling.hexdump` a way to suppress the total at the end
- [#1613][1613] Permit `--password` for `pwn template`
- [#1564][1564] Fix `asm()` and `disasm()` for PowerPC64, MIPS64, Sparc64
- [#1621][1621] Permit negative values in flat() and fit()
[1576]: https://github.com/Gallopsled/pwntools/pull/1576
[1584]: https://github.com/Gallopsled/pwntools/pull/1584
[1592]: https://github.com/Gallopsled/pwntools/pull/1592
[1593]: https://github.com/Gallopsled/pwntools/pull/1593
[1601]: https://github.com/Gallopsled/pwntools/pull/1601
[1605]: https://github.com/Gallopsled/pwntools/pull/1605
[1613]: https://github.com/Gallopsled/pwntools/pull/1613
[1564]: https://github.com/Gallopsled/pwntools/pull/1564
[1621]: https://github.com/Gallopsled/pwntools/pull/1621
## 4.2.1 (`stable`)
- [#1625][1625] GDB now properly loads executables with QEMU
- [#1663][1663] Change lookup algorithm of `adb.which`
- [#1699][1699] Fix broken linux shellcraft templates
[1625]: https://github.com/Gallopsled/pwntools/pull/1625
[1699]: https://github.com/Gallopsled/pwntools/pull/1699
## 4.2.0
- [#1436][1436] Add ret2dlresolve automation
- [fecf9f] tubes.ssh.process() no longer requires python 2 installed on remote (still requires python, though)
- Miscellanous improvements to DynElf and fmtstr leaker (see examples/fmtstr/exploit2.py)
- #1454 Support for windows console colors
- [#1454][1454] Support for windows console colors
[fecf9f]: http://github.com/Gallopsled/pwntols/commit/fecf9f
[1436]: https://github.com/Gallopsled/pwntools/pull/1436
[fecf9f]: http://github.com/Gallopsled/pwntools/commit/fecf9f
[1454]: https://github.com/Gallopsled/pwntools/pull/1454
## 4.1.7 (`stable`)
## 4.1.0 (`stable`)
- [#1615][1615] Fix aarch64 pushstr and pushstr_array
[1615]: https://github.com/Gallopsled/pwntools/pull/1454
## 4.1.5
- [#1517][1517] flat(..., filler=) is fixed for `str` values and Python2 `bytes`
[1517]: https://github.com/Gallopsled/pwntools/pull/1517
## 4.1.4
- [#1698][1609] Fix issues in `packing.flat` with mis-ordred fields
[1609]: https://github.com/Gallopsled/pwntools/pull/1609
## 4.1.3
- [#1590][1590] Fix `gdb.attach()` for `remote`, `listen`, `ssh` tubes
- Also fix `run_in_new_terminal` for Py2 unicode strings
- [#1595][1595] Fix ssh.process(timeout=)
[1590]: https://github.com/Gallopsled/pwntools/pull/1590
[1595]: https://github.com/Gallopsled/pwntools/pull/1595
## 4.1.2
- Pwntools requires `six` v.1.12.0 or higher
## 4.1.1
- Fix PLT resolution by locking unicorn <1.0.2rc4 (#1538)
- Fix wrong ELF/context unpack handling (c4c11a37)
- Fix updating of ELF.functions addresses after changing ELF.address #1512 (#1513)
- Update Corefile warnings and replace asserts with normal checks (#1526)
- several py2-py3 issues (#1451)
- Fix cyclic command
## 4.1.0
- [#1316][1316] Fix connect shellcraft in python 3
- [#1323][1323] Fix issues related with debugging
@@ -72,15 +152,19 @@ To be released on May 30, 2020.
- [#1241][1241] Launch QEMU with sysroot if specified
- [#1218][1218] Support for FileStructure exploitation
[1241]: https://github.com/Gallopsled/pwntools/pulls/1218
[1218]: https://github.com/Gallopsled/pwntools/pulls/1218
[1316]: https://github.com/Gallopsled/pwntools/pull/1316
[1323]: https://github.com/Gallopsled/pwntools/pull/1323
[1001]: https://github.com/Gallopsled/pwntools/pull/1001
[1389]: https://github.com/Gallopsled/pwntools/pull/1389
[1241]: https://github.com/Gallopsled/pwntools/pull/1241
[1218]: https://github.com/Gallopsled/pwntools/pull/1218
## 4.0.1
- [#1412][1412] `recvline_pred()` and similar do not reorder data
- Bypass unicorn-engine/unicorn#1100 and unicorn-engine/unicorn#1170 requiring unstable package
[1412]: https://github.com/Gallopsled/pwntools/pulls/1412
[1412]: https://github.com/Gallopsled/pwntools/pull/1412
## 4.0.0
@@ -94,12 +178,13 @@ To be released on May 30, 2020.
- [#1202][1202] Docker: Kill 14 layers in pwntools base images
- [#1182][1182] shellcraft.dupio() for mips
[1391]: https://github.com/Gallopsled/pwntools/pulls/1391
[1317]: https://github.com/Gallopsled/pwntools/pulls/1317
[1285]: https://github.com/Gallopsled/pwntools/pulls/1285
[1216]: https://github.com/Gallopsled/pwntools/pulls/1216
[1202]: https://github.com/Gallopsled/pwntools/pulls/1202
[1182]: https://github.com/Gallopsled/pwntools/pulls/1182
[1402]: https://github.com/Gallopsled/pwntools/pull/1402
[1391]: https://github.com/Gallopsled/pwntools/pull/1391
[1317]: https://github.com/Gallopsled/pwntools/pull/1317
[1285]: https://github.com/Gallopsled/pwntools/pull/1285
[1216]: https://github.com/Gallopsled/pwntools/pull/1216
[1202]: https://github.com/Gallopsled/pwntools/pull/1202
[1182]: https://github.com/Gallopsled/pwntools/pull/1182
[76413f]: https://github.com/Gallopsled/pwntools/commit/76413f
## 3.13.0
@@ -110,32 +195,16 @@ To be released on May 30, 2020.
- [#1277][1277] Fix timeout parameter passing in sendlineafter and other similar functions
- [#1292][1292] Provide correct arch name to gdb for sparc64
[1175]: https://github.com/Gallopsled/pwntools/pulls/1175
[1204]: https://github.com/Gallopsled/pwntools/pulls/1355
[1277]: https://github.com/Gallopsled/pwntools/pulls/1277
[1292]: https://github.com/Gallopsled/pwntools/pulls/1292
[1355]: https://github.com/Gallopsled/pwntools/pulls/1355
## 3.12.1
- [#1104][1104] Add `DynELF.dump()` for dumping remote ELF files
- [#1101][1101] Set `context.os` via `context.binary`, useful for Android exploitation
- [5fdc08][5fdc08] Work around broken `pidof` on Android
- [63dfed][63dfed] Print warning when Corefile deletion fails instead of throwing an exception
- [#1094][1094] Make hexdump output alignment more consistent
- [#1096][1096] `flat()` and `fit()` are now the same function
[1104]: https://github.com/Gallopsled/pwntools/pull/1104
[1101]: https://github.com/Gallopsled/pwntools/pull/1101
[1094]: https://github.com/Gallopsled/pwntools/pull/1094
[1096]: https://github.com/Gallopsled/pwntools/pull/1096
[5fdc08]: https://github.com/Gallopsled/pwntools/commit/5fdc08
[63dfed]: https://github.com/Gallopsled/pwntools/commit/63dfed
[1175]: https://github.com/Gallopsled/pwntools/pull/1175
[1204]: https://github.com/Gallopsled/pwntools/pull/1204
[1277]: https://github.com/Gallopsled/pwntools/pull/1277
[1292]: https://github.com/Gallopsled/pwntools/pull/1292
[1355]: https://github.com/Gallopsled/pwntools/pull/1355
## 3.12.2
- [1242][1242] Use IntervalTree 2.xx, disallow use of 3.xx
- [1243][1243] Fix a typo that caused an exception when executing a binary with `process()` which returns `-ENOEXEC` and the system does not have `qemu-user` binaries installed.
- [#1242][1242] Use IntervalTree 2.xx, disallow use of 3.xx
- [#1243][1243] Fix a typo that caused an exception when executing a binary with `process()` which returns `-ENOEXEC` and the system does not have `qemu-user` binaries installed.
[1242]: https://github.com/Gallopsled/pwntools/pull/1242
[1243]: https://github.com/Gallopsled/pwntools/pull/1243
@@ -153,7 +222,15 @@ To be released on May 30, 2020.
- [#1131][1131] Add "libc-" to libc prefixes in `process` tubes
- [#1125][1125] Fix a typo
- [#1121][1121] Fix tests which were broken by an upstream Sphinx change
- [#1104][1104] Add `DynELF.dump()` for dumping remote ELF files
- [#1101][1101] Set `context.os` via `context.binary`, useful for Android exploitation
- [5fdc08][5fdc08] Work around broken `pidof` on Android
- [63dfed][63dfed] Print warning when Corefile deletion fails instead of throwing an exception
- [#1094][1094] Make hexdump output alignment more consistent
- [#1096][1096] `flat()` and `fit()` are now the same function
[1198]: https://github.com/Gallopsled/pwntools/pull/1198
[1191]: https://github.com/Gallopsled/pwntools/pull/1191
[1159]: https://github.com/Gallopsled/pwntools/pull/1159
[1162]: https://github.com/Gallopsled/pwntools/pull/1162
[1150]: https://github.com/Gallopsled/pwntools/pull/1150
@@ -163,6 +240,12 @@ To be released on May 30, 2020.
[1131]: https://github.com/Gallopsled/pwntools/pull/1131
[1125]: https://github.com/Gallopsled/pwntools/pull/1125
[1121]: https://github.com/Gallopsled/pwntools/pull/1121
[1104]: https://github.com/Gallopsled/pwntools/pull/1104
[1101]: https://github.com/Gallopsled/pwntools/pull/1101
[1094]: https://github.com/Gallopsled/pwntools/pull/1094
[1096]: https://github.com/Gallopsled/pwntools/pull/1096
[5fdc08]: https://github.com/Gallopsled/pwntools/commit/5fdc08
[63dfed]: https://github.com/Gallopsled/pwntools/commit/63dfed
## 3.12.0
+1 -1
View File
@@ -47,7 +47,7 @@ This module is our "clean" python-code. As a rule, we do not think that
importing :mod:`pwnlib` or any of the submodules should have any significant
side-effects (besides e.g. caching).
For the most part, you will also only get the bits you import. You for instance
For the most part, you will also only get the bits you import. You for instance would
not get access to :mod:`pwnlib.util.packing` simply by doing ``import
pwnlib.util``.
+3
View File
@@ -88,6 +88,9 @@ class stdout(object):
def __setattr__(self, name, value):
return setattr(sys.stdout, name, value)
pwnlib.context.ContextType.defaults['log_console'] = stdout()
github_actions = os.environ.get('USER') == 'runner'
travis_ci = os.environ.get('USER') == 'travis'
'''
autoclass_content = 'both'
+3 -3
View File
@@ -25,9 +25,9 @@ pwntools is available as a ``pip`` package.
.. code-block:: bash
$ apt-get update
$ apt-get install python2.7 python-pip python-dev git libssl-dev libffi-dev build-essential
$ pip install --upgrade pip
$ pip install --upgrade pwntools
$ apt-get install python3 python3-pip python3-dev git libssl-dev libffi-dev build-essential
$ python3 -m pip install --upgrade pip
$ python3 -m pip install --upgrade pwntools
Development
--------------
+1 -1
View File
@@ -39,7 +39,7 @@ repo <https://github.com/Gallopsled/pwntools-binutils/>`__.
.. code-block:: bash
$ brew install https://raw.githubusercontent.com/Gallopsled/pwntools-binutils/master/osx/binutils-$ARCH.rb
$ brew install https://raw.githubusercontent.com/Gallopsled/pwntools-binutils/master/macos/binutils-$ARCH.rb
Alternate OSes
^^^^^^^^^^^^^^^^
+6 -4
View File
@@ -827,10 +827,12 @@ def which(name, all = False, *a, **kw):
"""
# Unfortunately, there is no native 'which' on many phones.
which_cmd = '''
echo $PATH | while read -d: directory; do
[ -x "$directory/{name}" ] || continue;
echo -n "$directory/{name}\\x00";
done
(IFS=:
for directory in $PATH; do
[ -x "$directory/{name}" ] || continue;
echo -n "$directory/{name}\\x00";
done
)
[ -x "{name}" ] && echo -n "$PWD/{name}\\x00"
'''.format(name=name)
+3
View File
@@ -5,6 +5,9 @@ from __future__ import division
import argparse
import sys
import pwnlib
pwnlib.args.free_form = False
from pwn import *
from pwnlib.commandline import common
+10 -7
View File
@@ -3,6 +3,7 @@ from __future__ import absolute_import
from __future__ import division
import argparse
import six
import string
import sys
@@ -21,7 +22,7 @@ parser.add_argument(
'-a', '--alphabet',
metavar = 'alphabet',
default = string.ascii_lowercase.encode(),
type = bytes,
type = six.ensure_binary,
help = 'The alphabet to use in the cyclic pattern (defaults to all lower case letters)',
)
@@ -42,7 +43,7 @@ parser.add_argument(
help = 'The os/architecture/endianness/bits the shellcode will run in (default: linux/i386), choose from: %s' % common.choices,
)
group = parser.add_mutually_exclusive_group(required = True)
group = parser.add_mutually_exclusive_group(required=False)
group.add_argument(
'-l', '-o', '--offset', '--lookup',
dest = 'lookup',
@@ -52,9 +53,10 @@ group.add_argument(
group.add_argument(
'count',
type = int,
nargs = '?',
help = 'Number of characters to print'
type=int,
nargs='?',
default=None,
help='Number of characters to print'
)
def main(args):
@@ -65,9 +67,10 @@ def main(args):
pat = args.lookup
try:
pat = packing.pack(int(pat, 0), subsize*8)
pat = int(pat, 0)
except ValueError:
pass
pat = flat(pat)
if len(pat) != subsize:
log.critical('Subpattern must be %d bytes' % subsize)
@@ -88,7 +91,7 @@ def main(args):
want = args.count
result = cyclic(want, alphabet, subsize)
got = len(result)
if got < want:
if want is not None and got < want:
log.failure("Alphabet too small (max length = %i)" % got)
out = getattr(sys.stdout, 'buffer', sys.stdout)
+1 -1
View File
@@ -45,4 +45,4 @@ def main(args):
print(os.strerror(value))
if __name__ == '__main__':
pwnlib.commandline.common.main(__file__)
common.main(__file__)
+1 -1
View File
@@ -26,4 +26,4 @@ def main(args):
print(enhex(data))
if __name__ == '__main__':
pwnlib.commandline.common.main(__file__)
common.main(__file__)
+4 -4
View File
@@ -85,12 +85,12 @@ def main(args):
text.when = color
if skip:
if infile == sys.stdin:
infile.read(skip)
else:
try:
infile.seek(skip, os.SEEK_CUR)
except IOError:
infile.read(skip)
if count:
if count != -1:
infile = io.BytesIO(infile.read(count))
hl = []
+1 -1
View File
@@ -30,4 +30,4 @@ def main(args):
sys.stderr.write(str(e) + '\n')
if __name__ == '__main__':
pwnlib.commandline.common.main(__file__)
common.main(__file__)
+1
View File
@@ -1,4 +1,5 @@
from __future__ import absolute_import
from pwnlib.data.elf import fmtstr
from pwnlib.data.elf import relro
import os
+5
View File
@@ -0,0 +1,5 @@
all: i386
i386: vuln.c
gcc "$^" -fno-stack-protector -no-pie -m32 -o $@
+5
View File
@@ -0,0 +1,5 @@
import os
path = os.path.dirname(__file__)
def get(x):
return os.path.join(path, x)
BIN
View File
Binary file not shown.
+25
View File
@@ -0,0 +1,25 @@
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/mman.h>
#define MEMORY_ADDRESS ((void*)0x11111000)
#define MEMORY_SIZE 1024
#define TARGET ((int *) 0x11111110)
int main(int argc, char const *argv[])
{
char buff[1024];
void *ptr = NULL;
int *my_var = TARGET;
ptr = mmap(MEMORY_ADDRESS, MEMORY_SIZE, PROT_READ|PROT_WRITE, MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE, 0, 0);
if(ptr != MEMORY_ADDRESS)
{
perror("mmap");
return EXIT_FAILURE;
}
*my_var = 0x41414141;
write(1, &my_var, sizeof(int *));
scanf("%s", buff);
dprintf(2, buff);
write(1, my_var, sizeof(int));
return 0;
}
+2 -2
View File
@@ -21,8 +21,8 @@ class KernelConfig(object):
self.excludes = set(excludes)
#: Kernel version that this check should be enforced on
self.minver = map(int, str(minver).split('.'))
self.maxver = map(int, str(maxver).split('.'))
self.minver = list(map(int, str(minver).split('.')))
self.maxver = list(map(int, str(maxver).split('.')))
def relevant(self, config):
+8 -12
View File
@@ -945,16 +945,11 @@ class Corefile(ELF):
# Sanity check!
try:
assert stack[address] == b'\x00'
except AssertionError:
# Something weird is happening. Just don't touch it.
log.debug("Something is weird")
return
if stack[address] != b'\x00':
log.warning("Error parsing corefile stack: Could not find end of environment")
return
except ValueError:
# If the stack is not actually present in the coredump, we can't
# read from the stack. This will fail as:
# ValueError: 'seek out of range'
log.debug("ValueError")
log.warning("Error parsing corefile stack: Address out of bounds")
return
# address is currently set to the NULL terminator of the last
@@ -968,12 +963,14 @@ class Corefile(ELF):
p_last_env_addr = stack.find(pack(last_env_addr), None, last_env_addr)
if p_last_env_addr < 0:
# Something weird is happening. Just don't touch it.
log.warn_once("Found bad environment at %#x", last_env_addr)
log.warn_once("Error parsing corefile stack: Found bad environment at %#x", last_env_addr)
return
# Sanity check that we did correctly find the envp NULL terminator.
envp_nullterm = p_last_env_addr+context.bytes
assert self.unpack(envp_nullterm) == 0
if self.unpack(envp_nullterm) != 0:
log.warning("Error parsing corefile stack: Could not find end of environment variables")
return
# We've successfully located the end of the envp[] array.
#
@@ -1535,4 +1532,3 @@ class CorefileFinder(object):
return keys['interpreter']
return ''
+8 -3
View File
@@ -310,7 +310,7 @@ class ELF(ELFFile):
config = gz.read()
if config:
self.config = parse_kconfig(config)
self.config = parse_kconfig(config.decode())
#: ``True`` if the ELF is a statically linked executable
self.statically_linked = bool(self.elftype == 'EXEC' and self.load_addr)
@@ -592,6 +592,8 @@ class ELF(ELFFile):
self.symbols = dotdict({k:update(v) for k,v in self.symbols.items()})
self.plt = dotdict({k:update(v) for k,v in self.plt.items()})
self.got = dotdict({k:update(v) for k,v in self.got.items()})
for f in self.functions.values():
f.address += delta
# Update our view of memory
memory = intervaltree.IntervalTree()
@@ -1032,7 +1034,10 @@ class ELF(ELFFile):
return
banner = self.string(self.symbols.linux_banner)
# convert banner into a utf-8 string since re.search does not accept bytes anymore
banner = banner.decode('utf-8')
# 'Linux version 3.18.31-gd0846ecc
regex = r'Linux version (\S+)'
match = re.search(regex, banner)
@@ -1927,7 +1932,7 @@ class ELF(ELFFile):
def unpack(self, address, *a, **kw):
"""Unpacks an integer from the specified ``address``."""
self._update_args(kw)
return packing.unpack(self.read(address, context.bytes), *a, **kw)
return packing.unpack(self.read(address, self.bytes), *a, **kw)
def string(self, address):
"""string(address) -> str
+32 -32
View File
@@ -1,39 +1,39 @@
r"""
Provide some tools to exploit format string bug
Examples:
Let's use this program as an example:
>>> program = tempfile.mktemp()
>>> source = program + ".c"
>>> write(source, '''
... #include <stdio.h>
... #include <stdlib.h>
... #include <unistd.h>
... #include <sys/mman.h>
... #define MEMORY_ADDRESS ((void*)0x11111000)
... #define MEMORY_SIZE 1024
... #define TARGET ((int *) 0x11111110)
... int main(int argc, char const *argv[])
... {
... char buff[1024];
... void *ptr = NULL;
... int *my_var = TARGET;
... ptr = mmap(MEMORY_ADDRESS, MEMORY_SIZE, PROT_READ|PROT_WRITE, MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE, 0, 0);
... if(ptr != MEMORY_ADDRESS)
... {
... perror("mmap");
... return EXIT_FAILURE;
... }
... *my_var = 0x41414141;
... write(1, &my_var, sizeof(int *));
... scanf("%s", buff);
... dprintf(2, buff);
... write(1, my_var, sizeof(int));
... return 0;
... }''')
>>> gcc = process(["gcc", source, "-Wno-format-security", "-m32", "-o", program])
>>> gcc.poll(True) and gcc.recvall()
0
::
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/mman.h>
#define MEMORY_ADDRESS ((void*)0x11111000)
#define MEMORY_SIZE 1024
#define TARGET ((int *) 0x11111110)
int main(int argc, char const *argv[])
{
char buff[1024];
void *ptr = NULL;
int *my_var = TARGET;
ptr = mmap(MEMORY_ADDRESS, MEMORY_SIZE, PROT_READ|PROT_WRITE, MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE, 0, 0);
if(ptr != MEMORY_ADDRESS)
{
perror("mmap");
return EXIT_FAILURE;
}
*my_var = 0x41414141;
write(1, &my_var, sizeof(int *));
scanf("%s", buff);
dprintf(2, buff);
write(1, my_var, sizeof(int));
return 0;
}
We can automate the exploitation of the process like so:
>>> program = pwnlib.data.elf.fmtstr.get('i386')
>>> def exec_fmt(payload):
... p = process(program)
... p.sendline(payload)
+84 -61
View File
@@ -110,6 +110,7 @@ from pwnlib.asm import make_elf_from_assembly
from pwnlib.context import LocalContext
from pwnlib.context import context
from pwnlib.log import getLogger
from pwnlib.timeout import Timeout
from pwnlib.util import misc
from pwnlib.util import proc
@@ -384,8 +385,8 @@ def debug(args, gdbscript=None, exe=None, ssh=None, env=None, sysroot=None, **kw
by using the ``ssh=`` keyword to pass in your :class:`.ssh` instance.
>>> # Connect to the SSH server
>>> shell = ssh('runner', 'example.pwnme', password='demopass')
>>> # Start a process on the server
>>> shell = ssh('travis', 'example.pwnme', password='demopass')
>>> io = gdb.debug(['bash'],
... ssh = shell,
... gdbscript = '''
@@ -544,59 +545,62 @@ def attach(target, gdbscript = '', exe = None, gdb_args = None, ssh = None, sysr
Examples:
>>> # Attach directly to pid 1234
>>> gdb.attach(1234) # doctest: +SKIP
Attach to a process by PID
>>> pid = gdb.attach(1234) # doctest: +SKIP
>>> # Attach to the youngest "bash" process
>>> gdb.attach('bash') # doctest: +SKIP
Attach to the youngest process by name
>>> pid = gdb.attach('bash') # doctest: +SKIP
>>> # Start a process
>>> bash = process('bash')
>>> # Attach the debugger
>>> pid = gdb.attach(bash, '''
... set follow-fork-mode child
... break execve
... continue
... ''')
>>> # Interact with the process
>>> bash.sendline("whoami")
>>> bash.recvline()
b'runner\n'
>>> bash.close()
Attach a debugger to a :class:`.process` tube and automate interaction
>>> # Start a forking server
>>> server = process(['socat', 'tcp-listen:12345,fork,reuseaddr', 'exec:/bin/bash,nofork'])
>>> sleep(1)
>>> # Connect to the server
>>> io = remote('127.0.0.1', 12345)
>>> # Connect the debugger to the server-spawned process
>>> pid = gdb.attach(io, '''
... break exit
... continue
... ''', exe = '/bin/bash')
>>> # Talk to the spawned 'bash'
>>> io.sendline("echo hello")
>>> io.recvline()
b'hello\n'
>>> io.sendline("exit")
>>> io.close()
>>> io = process('bash')
>>> pid = gdb.attach(io, gdbscript='''
... call puts("Hello from process debugger!")
... detach
... quit
... ''')
>>> io.recvline()
b'Hello from process debugger!\n'
>>> io.sendline('echo Hello from bash && exit')
>>> io.recvall()
b'Hello from bash\n'
>>> # Connect to the SSH server
>>> shell = ssh('runner', 'example.pwnme', password='demopass')
>>> # Start a process on the server
>>> cat = shell.process(['cat'])
>>> # Attach a debugger to it
>>> gdb.attach(cat, '''
... break exit
... continue
... ''')
>>> cat.sendline("hello")
>>> cat.recvline()
b'hello\n'
>>> # Cause `cat` to exit
>>> cat.close()
Attach to the remote process from a :class:`.remote` or :class:`.listen` tube,
as long as it is running on the same machine.
>>> server = process(['socat', 'tcp-listen:12345,reuseaddr,fork', 'exec:/bin/bash,nofork'])
>>> sleep(1) # Wait for socat to start
>>> io = remote('127.0.0.1', 12345)
>>> sleep(1) # Wait for process to fork
>>> pid = gdb.attach(io, gdbscript='''
... call puts("Hello from remote debugger!")
... detach
... quit
... ''')
>>> io.recvline()
b'Hello from remote debugger!\n'
>>> io.sendline('echo Hello from bash && exit')
>>> io.recvall()
b'Hello from bash\n'
Attach to processes running on a remote machine via an SSH :class:`.ssh` process
>>> shell = ssh('travis', 'example.pwnme', password='demopass')
>>> io = shell.process(['cat'])
>>> pid = gdb.attach(io, gdbscript='''
... call sleep(5)
... call puts("Hello from ssh debugger!")
... detach
... quit
... ''')
>>> io.recvline(timeout=5) # doctest: +SKIP
b'Hello from ssh debugger!\n'
>>> io.sendline('This will be echoed back')
>>> io.recvline()
b'This will be echoed back\n'
>>> io.close()
"""
if context.noptrace:
log.warn_once("Skipping debug attach since context.noptrace==True")
@@ -627,6 +631,9 @@ def attach(target, gdbscript = '', exe = None, gdb_args = None, ssh = None, sysr
if context.os == 'android':
pre += 'set gnutarget ' + _bfdname() + '\n'
if exe:
pre += 'file %s\n' % exe
# let's see if we can find a pid to attach to
pid = None
if isinstance(target, six.integer_types):
@@ -675,18 +682,24 @@ def attach(target, gdbscript = '', exe = None, gdb_args = None, ssh = None, sysr
elif isinstance(target, tubes.sock.sock):
pids = proc.pidof(target)
if not pids:
log.error('could not find remote process (%s:%d) on this machine' %
log.error('Could not find remote process (%s:%d) on this machine' %
target.sock.getpeername())
waiting = 100
if exe:
while waiting:
waiting -= 1
for pid in pids:
if proc.exe(pid) == exe:
waiting = False
break
else:
time.sleep(0.01)
pid = pids[0]
# Specifically check for socat, since it has an intermediary process
# if you do not specify "nofork" to the EXEC: argument
# python(2640)───socat(2642)───socat(2643)───bash(2644)
if proc.exe(pid).endswith('/socat') and time.sleep(0.1) and proc.children(pid):
pid = proc.children(pid)[0]
# We may attach to the remote process after the fork but before it performs an exec.
# If an exe is provided, wait until the process is actually running the expected exe
# before we attach the debugger.
t = Timeout()
with t.countdown(2):
while exe and os.realpath(proc.exe(pid)) != os.realpath(exe) and t.timeout:
time.sleep(0.1)
elif isinstance(target, tubes.process.process):
pid = proc.pidof(target)[0]
exe = exe or target.executable
@@ -855,7 +868,7 @@ def find_module_addresses(binary, ssh=None, ulimit=False):
Example:
>>> with context.local(log_level=9999):
... shell = ssh(host='example.pwnme', user='runner', password='demopass')
... shell = ssh(host='example.pwnme', user='travis', password='demopass')
... bash_libs = gdb.find_module_addresses('/bin/bash', shell)
>>> os.path.basename(bash_libs[0].path)
'libc.so.6'
@@ -934,13 +947,23 @@ def find_module_addresses(binary, ssh=None, ulimit=False):
return rv
def corefile(process):
r"""Drops a core file for the process.
r"""Drops a core file for a running local process.
Note:
You should use :meth:`.process.corefile` instead of using this method directly.
Arguments:
process: Process to dump
Returns:
:class:`.Core`: The generated core file
Example:
>>> io = process('bash')
>>> core = gdb.corefile(io)
>>> core.exe.name
'/bin/bash'
"""
if context.noptrace:
+4 -1
View File
@@ -3,7 +3,10 @@ from pwnlib.tubes.process import process
from time import sleep
from sys import argv
sleep(1)
sh = process(argv[1], shell=True)
if len(argv) == 2:
sh = process(argv[1], shell=True)
else:
sh = process(argv[1:])
sh.sendline('set prompt (gdb)')
res = sh.sendlineafter('(gdb)', 'c')
while b'The program is not being run.' not in res:
+8 -3
View File
@@ -977,7 +977,10 @@ class ROP(object):
SYS_sigreturn = constants.SYS_rt_sigreturn
for register, value in zip(frame.arguments, arguments):
frame[register] = value
if not isinstance(value, six.integer_types + (Unresolved,)):
frame[register] = AppendedArgument(value)
else:
frame[register] = value
# Set up a call frame which will set EAX and invoke the syscall
call = Call('SYS_sigreturn',
@@ -1098,7 +1101,7 @@ class ROP(object):
#
# - leave
# - pop reg
# - add $sp, value
# - add $sp, <hexadecimal value>
# - ret
#
# Currently, ROPgadget does not detect multi-byte "C2" ret.
@@ -1106,7 +1109,7 @@ class ROP(object):
#
pop = re.compile(r'^pop (.{3})')
add = re.compile(r'^add [er]sp, (\S+)$')
add = re.compile(r'^add [er]sp, ((?:0[xX])?[0-9a-fA-F]+)$')
ret = re.compile(r'^ret$')
leave = re.compile(r'^leave$')
int80 = re.compile(r'int +0x80')
@@ -1122,6 +1125,8 @@ class ROP(object):
# False
# >>> valid('add esp, 0x24')
# True
# >>> valid('add esp, esi')
# False
#
valid = lambda insn: any(map(lambda pattern: pattern.match(insn), [pop,add,ret,leave,int80,syscall,sysenter]))
@@ -17,18 +17,11 @@ Example:
The following doctest is commented out because it doesn't work on Travis
for reasons I cannot diagnose. However, it should work just fine :-)
>>> gcc = process(['aarch64-linux-gnu-gcc','-xc','-static','-Wl,-Ttext-segment=0x20000000','-'])
>>> gcc.write(b'''
... #include <stdio.h>
... int main() {
... printf("Hello, %s!\\n", "world");
... }
... ''')
>>> gcc.shutdown('send')
>>> gcc.poll(True) and gcc.recvall()
0
>>> sc = shellcraft.loader_append('a.out')
>>> run_assembly(sc).recvline()
>>> payload = shellcraft.echo(b'Hello, world!\n') + shellcraft.exit(0)
>>> payloadELF = ELF.from_assembly(payload)
>>> loader = shellcraft.loader_append(payloadELF.data)
>>> loaderELF = ELF.from_assembly(loader, vma=0, shared=True)
>>> loaderELF.process().recvall()
b'Hello, world!\n'
</%docstring>
@@ -47,7 +40,7 @@ ${there}:
<%
import os
if os.path.isfile(data):
if b'\x00' not in data and os.path.isfile(data):
with open(data, 'rb') as f:
data = f.read()
%>
+15 -58
View File
@@ -15,64 +15,19 @@ Args:
Examples:
>>> print(shellcraft.pushstr("Hello!").rstrip())
/* push b'Hello!\x00' */
/* Set x14 = 36762444129608 = 0x216f6c6c6548 */
mov x14, #25928
movk x14, #27756, lsl #16
movk x14, #8559, lsl #0x20
str x14, [sp, #-16]!
>>> print(shellcraft.pushstr("Hello, world!").rstrip())
/* push b'Hello, world!\x00' */
/* Set x14 = 8583909746840200520 = 0x77202c6f6c6c6548 */
mov x14, #25928
movk x14, #27756, lsl #16
movk x14, #11375, lsl #0x20
movk x14, #30496, lsl #0x30
/* Set x15 = 143418749551 = 0x21646c726f */
mov x15, #29295
movk x15, #25708, lsl #16
movk x15, #33, lsl #0x20
stp x14, x15, [sp, #-16]!
>>> print(shellcraft.pushstr("Hello, world, bienvenue").rstrip())
/* push b'Hello, world, bienvenue\x00' */
/* Set x14 = 8583909746840200520 = 0x77202c6f6c6c6548 */
mov x14, #25928
movk x14, #27756, lsl #16
movk x14, #11375, lsl #0x20
movk x14, #30496, lsl #0x30
/* Set x15 = 7593667296735556207 = 0x6962202c646c726f */
mov x15, #29295
movk x15, #25708, lsl #16
movk x15, #8236, lsl #0x20
movk x15, #26978, lsl #0x30
stp x14, x15, [sp, #-16]!
/* Set x14 = 28558089656888933 = 0x65756e65766e65 */
mov x14, #28261
movk x14, #25974, lsl #16
movk x14, #30062, lsl #0x20
movk x14, #101, lsl #0x30
str x14, [sp, #-16]!
>>> print(shellcraft.pushstr("Hello, world, bienvenue!").rstrip())
/* push b'Hello, world, bienvenue!\x00' */
/* Set x14 = 8583909746840200520 = 0x77202c6f6c6c6548 */
mov x14, #25928
movk x14, #27756, lsl #16
movk x14, #11375, lsl #0x20
movk x14, #30496, lsl #0x30
/* Set x15 = 7593667296735556207 = 0x6962202c646c726f */
mov x15, #29295
movk x15, #25708, lsl #16
movk x15, #8236, lsl #0x20
movk x15, #26978, lsl #0x30
stp x14, x15, [sp, #-16]!
/* Set x14 = 2406458692908510821 = 0x2165756e65766e65 */
mov x14, #28261
movk x14, #25974, lsl #16
movk x14, #30062, lsl #0x20
movk x14, #8549, lsl #0x30
mov x15, xzr
stp x14, x15, [sp, #-16]!
>>> string = "Hello, world!"
>>> assembly = shellcraft.pushstr(string)
>>> assembly += shellcraft.write(1, 'sp', len(string))
>>> assembly += shellcraft.exit()
>>> ELF.from_assembly(assembly).process().recvall()
b'Hello, world!'
>>> string = "Hello, world! This is a long string! Wow!"
>>> assembly = shellcraft.pushstr(string)
>>> assembly += shellcraft.write(1, 'sp', len(string))
>>> assembly += shellcraft.exit()
>>> ELF.from_assembly(assembly).process().recvall()
b'Hello, world! This is a long string! Wow!'
</%docstring>
<%
if isinstance(string, six.text_type):
@@ -91,6 +46,8 @@ while len(string) % 8:
words = packing.unpack_many(string)
pairs = lists.group(2, words)
pairs = pairs[::-1]
# The stack must be 16-byte aligned
total = len(pairs) * 16
@@ -2,7 +2,7 @@
from pwnlib import shellcraft
from pwnlib.context import context as ctx
from pwnlib.util.iters import group
from six import text_type, binary_type
from six import text_type, binary_type, ensure_binary
%>
<%docstring>
Pushes an array/envp-style array of pointers onto the stack.
@@ -14,66 +14,44 @@ Arguments:
Single argument or list of arguments to push.
NULL termination is normalized so that each argument
ends with exactly one NULL byte.
Example:
>>> assembly = shellcraft.execve("/bin/sh", ["sh", "-c", "echo Hello string $WORLD"], {"WORLD": "World!"})
>>> ELF.from_assembly(assembly).process().recvall()
b'Hello string World!\n'
</%docstring>
<%page args="reg, array, register1='x14', register2='x15'"/>
<%
if isinstance(array, (binary_type, text_type)):
array = [array]
# Normalize all of the arguments' endings
# Convert all items to strings
array = [ensure_binary(x) for x in array]
# Normalize line endings for each item
array = [arg.rstrip(b'\x00') + b'\x00' for arg in array]
# Join everything in the string-to-be-pushed
string = b''.join(array)
# Maximum amount that we can adjust SP by at once is 4095,
# which seems like a safe maximum.
if len(array) * 8 > 4095:
raise Exception("Array size is too large (%i), max=4095" % len(array))
# Join them into one big string that can be pushed
array_str = b''.join(array)
# Create a listing of offsets from what will be the "top" of the stack.
num_pointers = len(array)
# Account for the NULL terminator
num_pointers += 1
while num_pointers % 2 != 0:
num_pointers += 1
# Offset from the 'top' of the stack, to the data pointed at
sp_to_data = num_pointers * ctx.bytes
# List of amounts to subtract from $SP
offsets = {}
for i,arg in enumerate(reversed(array)):
offsets[i] = sp_to_data + len(array_str) - len(arg)
# If the array length is ODD we can sneak in our null terminator at the end
if len(array) % 2 == 1:
offsets[len(offsets)] = 'sp'
sorted_offsets = []
for key in sorted(offsets):
sorted_offsets.append(offsets[key])
# Load the offsets into pairs
pairwise_offsets = group(2, sorted_offsets)
%>\
/* push argument array ${repr(array)} */
${shellcraft.pushstr(array_str, register1=register1, register2=register2)}
${shellcraft.pushstr(string, register1=register1, register2=register2)}
/* adjust the stack pointer to account for the array of pointers */
sub sp, sp, ${num_pointers * ctx.bytes}
/* push null terminator */
${shellcraft.mov(register1, 0)}
str ${register1}, [sp, #-8]!
/* push pointers onto the stack in pairs */
%for i, (a, b) in enumerate(pairwise_offsets):
${shellcraft.mov(register1, a)}
${shellcraft.mov(register2, b)}
sub ${register1}, sp, ${register1}
sub ${register2}, sp, ${register2}
stp ${register1}, ${register2}, [sp], ${i * 16}
/* push pointers onto the stack */
%for i, value in enumerate(reversed(array)):
${shellcraft.mov(register1, (i+1)*8 + string.index(value))}
add ${register1}, sp, ${register1}
str ${register1}, [sp, #-8]! /* ${array[-i]} */
%endfor
%if len(array[-1] != 'sp')
/* set ${reg} to the current top of the stack */
${shellcraft.mov(reg,'sp')}
@@ -14,23 +14,15 @@ Arguments:
Example:
>>> gcc = process(['gcc','-m64','-xc','-static','-Wl,-Ttext-segment=0x20000000','-'])
>>> gcc.write(b'''
... #include <stdio.h>
... int main() {
... printf("Hello, %s!\\n", "amd64");
... }
... ''')
>>> gcc.shutdown('send')
>>> gcc.poll(True) and gcc.recvall()
0
>>> sc = shellcraft.loader_append('a.out')
>>> payload = shellcraft.echo(b'Hello, world!\n') + shellcraft.exit(0)
>>> payloadELF = ELF.from_assembly(payload)
>>> payloadELF.arch
'amd64'
>>> loader = shellcraft.loader_append(payloadELF.data)
>>> loaderELF = ELF.from_assembly(loader, vma=0, shared=True)
>>> loaderELF.process().recvall()
b'Hello, world!\n'
The following doctest is commented out because it doesn't work on Travis
for reasons I cannot diagnose. However, it should work just fine :-)
>>> run_assembly(sc).recvline() == b'Hello, amd64!\n'
True
</%docstring>
<%page args="data = None"/>
@@ -48,7 +40,7 @@ ${elf_data}:
<%
import os
if os.path.isfile(data):
if b'\x00' not in data and os.path.isfile(data):
with open(data, 'rb') as f:
data = f.read()
%>
@@ -20,22 +20,22 @@ ${acceptloop}:
/* Socket file descriptor is placed in EBP */
/* sock = socket(AF_INET, SOCK_STREAM, 0) */
${i386.linux.push(0)}
${i386.linux.push('SOCK_STREAM')}
${i386.linux.push('AF_INET')}
${i386.push(0)}
${i386.push('SOCK_STREAM')}
${i386.push('AF_INET')}
${i386.linux.syscall('SYS_socketcall', 'SYS_socketcall_socket', 'esp')}
${i386.linux.mov('esi', 'eax')} /* keep socket fd */
${i386.mov('esi', 'eax')} /* keep socket fd */
/* bind(sock, &addr, sizeof addr); // sizeof addr == 0x10 */
${i386.linux.push(0)}
${i386.push(0)}
/* ${htons(port)} == htons(${port}) */
${i386.linux.push('AF_INET | (%d << 16)' % htons(port))}
${i386.linux.mov('ecx', 'esp')}
${i386.push('AF_INET | (%d << 16)' % htons(port))}
${i386.mov('ecx', 'esp')}
${i386.linux.push(0x10)} /* sizeof addr */
${i386.linux.push('ecx')} /* &addr */
${i386.linux.push('eax')} /* sock */
${i386.push(0x10)} /* sizeof addr */
${i386.push('ecx')} /* &addr */
${i386.push('eax')} /* sock */
${i386.linux.syscall('SYS_socketcall', 'SYS_socketcall_bind', 'esp')}
/* listen(sock, whatever) */
@@ -44,17 +44,17 @@ ${acceptloop}:
${looplabel}:
/* accept(sock, NULL, NULL) */
${i386.linux.push(0x0)}
${i386.linux.push('esi')} /* sock */
${i386.push(0x0)}
${i386.push('esi')} /* sock */
${i386.linux.syscall('SYS_socketcall', 'SYS_socketcall_accept', 'esp')}
${i386.linux.mov('ebp', 'eax')} /* keep in-coming socket fd */
${i386.mov('ebp', 'eax')} /* keep in-coming socket fd */
${i386.linux.syscall('SYS_fork')}
xchg eax, edi
test edi, edi
${i386.linux.mov('ebx', 'ebp')}
${i386.mov('ebx', 'ebp')}
cmovz ebx, esi /* on child we close the server sock instead */
/* close(sock) */
@@ -14,23 +14,14 @@ Arguments:
Example:
>>> gcc = process(['gcc','-m32','-xc','-static','-Wl,-Ttext-segment=0x20000000','-'])
>>> gcc.write(b'''
... #include <stdio.h>
... int main() {
... printf("Hello, %s!\\n", "i386");
... }
... ''')
>>> gcc.shutdown('send')
>>> gcc.poll(True) and gcc.recvall()
0
>>> sc = shellcraft.loader_append('a.out')
The following doctest is commented out because it doesn't work on Travis
for reasons I cannot diagnose. However, it should work just fine :-)
>>> run_assembly(sc).recvline()
b'Hello, i386!\n'
>>> payload = shellcraft.echo(b'Hello, world!\n') + shellcraft.exit(0)
>>> payloadELF = ELF.from_assembly(payload)
>>> payloadELF.arch
'i386'
>>> loader = shellcraft.loader_append(payloadELF.data)
>>> loaderELF = ELF.from_assembly(loader, vma=0, shared=True)
>>> loaderELF.process().recvall()
b'Hello, world!\n'
</%docstring>
<%page args="data = None"/>
@@ -48,7 +39,7 @@ ${elf_data}:
<%
import os
if os.path.isfile(data):
if b'\x00' not in data and os.path.isfile(data):
with open(data, 'rb') as f:
data = f.read()
%>
@@ -22,6 +22,6 @@
%endif
${label}:
${i386.linux.syscall('SYS_mprotect', 'ebx', 'ecx', 'PROT_READ | PROT_WRITE | PROT_EXEC')}
${i386.linux.mov('ecx', 0x1000)}
${i386.mov('ecx', 0x1000)}
add ebx, ecx
jnz ${label}
@@ -17,20 +17,16 @@ Example:
The following doctest is commented out because it doesn't work on Travis
for reasons I cannot diagnose. However, it should work just fine :-)
>>> gcc = process(['arm-linux-gnueabihf-gcc','-xc','-static','-Wl,-Ttext-segment=0x20000000','-'])
>>> gcc.write(b'''
... #include <stdio.h>
... int main() {
... printf("Hello, %s!\\n", "world");
... }
... ''')
>>> gcc.shutdown('send')
>>> gcc.poll(True) and gcc.recvall()
0
>>> sc = shellcraft.loader_append('a.out')
>>> run_assembly(sc).recvline()
>>> payload = shellcraft.echo(b'Hello, world!\n') + shellcraft.exit(0)
>>> payloadELF = ELF.from_assembly(payload)
>>> payloadELF.arch
'arm'
>>> loader = shellcraft.loader_append(payloadELF.data)
>>> loaderELF = ELF.from_assembly(loader, vma=0, shared=True)
>>> loaderELF.process().recvall()
b'Hello, world!\n'
</%docstring>
<%page args="data = None"/>
<%
@@ -45,7 +41,7 @@ ${there}:
<%
import os
if os.path.isfile(data):
if b'\x00' not in data and os.path.isfile(data):
with open(data, 'rb') as f:
data = f.read()
%>
+1 -1
View File
@@ -117,7 +117,7 @@ class server(sock):
data, rhost = listen_sock.recvfrom(4096)
listen_sock.connect(rhost)
sock = listen_sock
sock.unrecv(data)
self.unrecv(data)
sock.settimeout(self.timeout)
break
except socket.error as e:
+33 -23
View File
@@ -560,12 +560,15 @@ class ssh(Timeout, Logger):
Example proxying:
.. doctest::
:skipif: github_actions
>>> s1 = ssh(host='example.pwnme',
... user='runner',
... user='travis',
... password='demopass')
>>> r1 = s1.remote('localhost', 22)
>>> s2 = ssh(host='example.pwnme',
... user='runner',
... user='travis',
... password='demopass',
... proxy_sock=r1.sock)
>>> r2 = s2.remote('localhost', 22) # and so on...
@@ -631,7 +634,7 @@ class ssh(Timeout, Logger):
if os.path.exists(known_hosts):
self.client.load_host_keys(known_hosts)
has_proxy = (proxy_sock or proxy_command) and True
has_proxy = bool(proxy_sock or proxy_command)
if has_proxy:
if 'ProxyCommand' not in dir(paramiko):
self.error('This version of paramiko does not support proxies.')
@@ -702,7 +705,7 @@ class ssh(Timeout, Logger):
Examples:
>>> s = ssh(host='example.pwnme',
... user='runner',
... user='travis',
... password='demopass')
>>> sh = s.shell('/bin/sh')
>>> sh.sendline(b'echo Hello; exit')
@@ -781,7 +784,7 @@ class ssh(Timeout, Logger):
Examples:
>>> s = ssh(host='example.pwnme',
... user='runner',
... user='travis',
... password='demopass')
>>> sh = s.process('/bin/sh', env={'PS1':''})
>>> sh.sendline(b'echo Hello; exit')
@@ -828,10 +831,14 @@ class ssh(Timeout, Logger):
>>> print(s.process('false', preexec_fn=uses_globals).recvall().strip().decode()) # doctest: +ELLIPSIS
Traceback (most recent call last):
...
NameError: name 'bar' is not defined
NameError: ... name 'bar' is not defined
>>> s.process('echo hello', shell=True).recvall()
b'hello\n'
>>> io = s.process(['cat'], timeout=5)
>>> io.recvline()
b''
"""
if not argv and not executable:
self.error("Must specify argv or executable")
@@ -1049,11 +1056,14 @@ os.execve(exe, argv, env)
msg = 'Starting remote process %s on %s' % (execve_repr, self.host)
if timeout == Timeout.default:
timeout = self.timeout
with self.progress(msg) as h:
script = 'for py in python3 python; do test -x "$(which $py 2>&1)" && exec $py -c %s check; done; echo 2' % sh_string(script)
with context.local(log_level='error'):
python = ssh_process(self, script, tty=True, raw=True, level=self.level, timeout=self.timeout)
script = 'for py in python2.7 python2 python; do test -x "$(which $py 2>&1)" && exec $py -c %s check; done; echo 2' % sh_string(script)
with context.quiet:
python = ssh_process(self, script, tty=True, raw=True, level=self.level, timeout=timeout)
try:
result = safeeval.const(python.recvline())
@@ -1132,7 +1142,7 @@ os.execve(exe, argv, env)
Examples:
>>> s = ssh(host='example.pwnme',
... user='runner',
... user='travis',
... password='demopass')
>>> py = s.run('python -i')
>>> _ = py.recvuntil(b'>>> ')
@@ -1193,7 +1203,7 @@ from ctypes import *; libc = CDLL('libc.so.6'); print(libc.getenv(%r))
Examples:
>>> s = ssh(host='example.pwnme',
... user='runner',
... user='travis',
... password='demopass')
>>> print(s.run_to_end('echo Hello; exit 17'))
(b'Hello\n', 17)
@@ -1218,7 +1228,7 @@ from ctypes import *; libc = CDLL('libc.so.6'); print(libc.getenv(%r))
>>> from pwn import *
>>> l = listen()
>>> s = ssh(host='example.pwnme',
... user='runner',
... user='travis',
... password='demopass')
>>> a = s.connect_remote(s.host, l.lport)
>>> a=a; b = l.wait_for_connection() # a=a; prevents hangs
@@ -1243,7 +1253,7 @@ from ctypes import *; libc = CDLL('libc.so.6'); print(libc.getenv(%r))
>>> from pwn import *
>>> s = ssh(host='example.pwnme',
... user='runner',
... user='travis',
... password='demopass')
>>> l = s.listen_remote()
>>> a = remote(s.host, l.port)
@@ -1263,7 +1273,7 @@ from ctypes import *; libc = CDLL('libc.so.6'); print(libc.getenv(%r))
Examples:
>>> s = ssh(host='example.pwnme',
... user='runner',
... user='travis',
... password='demopass')
>>> print(repr(s['echo hello']))
b'hello'
@@ -1276,7 +1286,7 @@ from ctypes import *; libc = CDLL('libc.so.6'); print(libc.getenv(%r))
Examples:
>>> s = ssh(host='example.pwnme',
... user='runner',
... user='travis',
... password='demopass')
>>> print(repr(s('echo hello')))
b'hello'
@@ -1289,12 +1299,12 @@ from ctypes import *; libc = CDLL('libc.so.6'); print(libc.getenv(%r))
Examples:
>>> s = ssh(host='example.pwnme',
... user='runner',
... user='travis',
... password='demopass')
>>> s.echo('hello')
b'hello'
>>> s.whoami()
b'runner'
b'travis'
>>> s.echo(['huh','yay','args'])
b'huh yay args'
"""
@@ -1322,7 +1332,7 @@ from ctypes import *; libc = CDLL('libc.so.6'); print(libc.getenv(%r))
Example:
>>> s = ssh(host='example.pwnme',
... user='runner',
... user='travis',
... password='demopass')
>>> s.connected()
True
@@ -1480,7 +1490,7 @@ from ctypes import *; libc = CDLL('libc.so.6'); print(libc.getenv(%r))
>>> with open('/tmp/bar','w+') as f:
... _ = f.write('Hello, world')
>>> s = ssh(host='example.pwnme',
... user='runner',
... user='travis',
... password='demopass',
... cache=False)
>>> s.download_data('/tmp/bar')
@@ -1570,7 +1580,7 @@ from ctypes import *; libc = CDLL('libc.so.6'); print(libc.getenv(%r))
Example:
>>> s = ssh(host='example.pwnme',
... user='runner',
... user='travis',
... password='demopass')
>>> s.upload_data(b'Hello, world', '/tmp/upload_foo')
>>> print(open('/tmp/upload_foo').read())
@@ -1801,7 +1811,7 @@ from ctypes import *; libc = CDLL('libc.so.6'); print(libc.getenv(%r))
Examples:
>>> s = ssh(host='example.pwnme',
... user='runner',
... user='travis',
... password='demopass')
>>> cwd = s.set_working_directory()
>>> s.ls()
@@ -1810,7 +1820,7 @@ from ctypes import *; libc = CDLL('libc.so.6'); print(libc.getenv(%r))
True
>>> s = ssh(host='example.pwnme',
... user='runner',
... user='travis',
... password='demopass')
>>> homedir = s.pwd()
>>> _=s.touch('foo')
@@ -1980,7 +1990,7 @@ from ctypes import *; libc = CDLL('libc.so.6'); print(libc.getenv(%r))
Example:
>>> s = ssh("runner", "example.pwnme")
>>> s = ssh("travis", "example.pwnme")
>>> s.aslr
True
"""
+2 -1
View File
@@ -5,6 +5,7 @@ import errno
import os
import platform
import re
import six
import socket
import stat
import string
@@ -237,7 +238,7 @@ def run_in_new_terminal(command, terminal = None, args = None):
argv = [which(terminal)] + args
if isinstance(command, str):
if isinstance(command, six.string_types):
if ';' in command:
log.error("Cannot use commands with semicolon. Create a script and invoke that directly.")
argv += [command]
+105 -22
View File
@@ -33,6 +33,7 @@ Examples:
from __future__ import absolute_import
from __future__ import division
import collections
import six
import struct
import sys
@@ -491,9 +492,11 @@ def _fit(pieces, preprocessor, packer, filler):
pad = bytearray()
def fill(key):
key = bytearray(key)
while len(pad) < len(key) or pad[-len(key):] != key:
offset = pad.find(key)
while offset == -1:
pad.append(next(filler))
return len(pad) - len(key)
offset = pad.find(key, -len(key))
return offset
# Key conversion:
# - convert str/unicode keys to offsets
@@ -614,26 +617,103 @@ def flat(*args, **kwargs):
sign (str): Signedness of the converted integer (False/True)
Examples:
>>> flat(1, "test", [[["AB"]*2]*3], endianness = 'little', word_size = 16, sign = False)
b'\x01\x00testABABABABABAB'
>>> flat([1, [2, 3]], preprocessor = lambda x: str(x+1))
b'234'
>>> flat({12: 0x41414141,
... 24: 'Hello',
... })
b'aaaabaaacaaaAAAAeaaafaaaHello'
>>> flat({'caaa': ''})
b'aaaabaaa'
>>> flat({12: 'XXXX'}, filler = (ord('A'), ord('B')), length = 20)
b'ABABABABABABXXXXABAB'
>>> flat({ 8: [0x41414141, 0x42424242],
... 20: 'CCCC'})
b'aaaabaaaAAAABBBBeaaaCCCC'
>>> flat({ 0x61616162: 'X'})
b'aaaaX'
>>> flat({4: {0: 'X', 4: 'Y'}})
b'aaaaXaaaY'
(Test setup, please ignore)
>>> context.clear()
Basic usage of :meth:`flat` works similar to the pack() routines.
>>> flat(4)
b'\x04\x00\x00\x00'
:meth:`flat` works with strings, bytes, lists, and dictionaries.
>>> flat(b'X')
b'X'
>>> flat([1,2,3])
b'\x01\x00\x00\x00\x02\x00\x00\x00\x03\x00\x00\x00'
>>> flat({4:'X'})
b'aaaaX'
:meth:`.flat` flattens all of the values provided, and allows nested lists
and dictionaries.
>>> flat([{4:'X'}] * 2)
b'aaaaXaaacX'
>>> flat([[[[[[[[[1]]]], 2]]]]])
b'\x01\x00\x00\x00\x02\x00\x00\x00'
You can also provide additional arguments like endianness, word-size, and
whether the values are treated as signed or not.
>>> flat(1, "test", [[["AB"]*2]*3], endianness = 'little', word_size = 16, sign = False)
b'\x01\x00testABABABABABAB'
A preprocessor function can be provided in order to modify the values in-flight.
This example converts increments each value by 1, then converts to a string.
>>> flat([1, [2, 3]], preprocessor = lambda x: str(x+1))
b'234'
Using dictionaries is a fast way to get specific values at specific offsets,
without having to do ``data += "foo"`` repeatedly.
>>> flat({12: 0x41414141,
... 24: 'Hello',
... })
b'aaaabaaacaaaAAAAeaaafaaaHello'
Dictionary usage permits directly using values derived from :func:`.cyclic`.
See :func:`.cyclic`, :function:`pwnlib.context.context.cyclic_alphabet`, and :data:`.context.cyclic_size`
for more options.
The cyclic pattern can be provided as either the text or hexadecimal offset.
>>> flat({ 0x61616162: 'X'})
b'aaaaX'
>>> flat({'baaa': 'X'})
b'aaaaX'
Fields do not have to be in linear order, and can be freely mixed.
This also works with cyclic offsets.
>>> flat({2: 'A', 0:'B'})
b'BaA'
>>> flat({0x61616161:'x', 0x61616162:'y'})
b'xaaay'
>>> flat({0x61616162:'y', 0x61616161:'x'})
b'xaaay'
Fields do not have to be in order, and can be freely mixed.
>>> flat({'caaa': 'XXXX', 16: '\x41', 20: 0xdeadbeef})
b'aaaabaaaXXXXdaaaAaaa\xef\xbe\xad\xde'
>>> flat({ 8: [0x41414141, 0x42424242], 20: 'CCCC'})
b'aaaabaaaAAAABBBBeaaaCCCC'
>>> fit({
... 0x61616161: 'a',
... 1: 'b',
... 0x61616161+2: 'c',
... 3: 'd',
... })
b'abadbaaac'
By default, gaps in the data are filled in with the :meth:`.cyclic` pattern.
You can customize this by providing an iterable or method for the ``filler``
argument.
>>> flat({12: 'XXXX'}, filler = b'_', length = 20)
b'____________XXXX____'
>>> flat({12: 'XXXX'}, filler = b'AB', length = 20)
b'ABABABABABABXXXXABAB'
Nested dictionaries also work as expected.
>>> flat({4: {0: 'X', 4: 'Y'}})
b'aaaaXaaaY'
>>> fit({4: {4: 'XXXX'}})
b'aaaabaaaXXXX'
"""
# HACK: To avoid circular imports we need to delay the import of `cyclic`
from pwnlib.util import cyclic
@@ -642,6 +722,9 @@ def flat(*args, **kwargs):
filler = kwargs.pop('filler', cyclic.de_bruijn())
length = kwargs.pop('length', None)
if isinstance(filler, str):
filler = bytearray(six.ensure_binary(filler))
if kwargs != {}:
raise TypeError("flat() does not support argument %r" % kwargs.popitem()[0])
@@ -656,7 +739,7 @@ def flat(*args, **kwargs):
return out
def fit(*args, **kwargs):
"""Legacy alias for `:func:flat`"""
"""Legacy alias for :func:`flat`"""
return flat(*args, **kwargs)
"""
+20 -13
View File
@@ -9,6 +9,7 @@ import psutil
from pwnlib import tubes
from pwnlib.log import getLogger
from pwnlib.timeout import Timeout
log = getLogger(__name__)
@@ -337,17 +338,23 @@ def wait_for_debugger(pid, debugger_pid=None):
Returns:
None
"""
with log.waitfor('Waiting for debugger') as l:
if debugger_pid:
debugger = psutil.Process(debugger_pid)
while tracer(pid) is None:
try:
debugger.wait(0.01)
except psutil.TimeoutExpired:
pass
else:
l.failure("debugger exited! (maybe check /proc/sys/kernel/yama/ptrace_scope)")
t = Timeout()
with t.countdown(timeout=15):
with log.waitfor('Waiting for debugger') as l:
if debugger_pid:
debugger = psutil.Process(debugger_pid)
while t.timeout and tracer(pid) is None:
try:
debugger.wait(0.01)
except psutil.TimeoutExpired:
pass
else:
l.failure("debugger exited! (maybe check /proc/sys/kernel/yama/ptrace_scope)")
else:
while t.timeout and tracer(pid) is None:
time.sleep(0.01)
if tracer(pid):
l.success()
else:
while tracer(pid) is None:
time.sleep(0.01)
l.success()
l.failure('Debugger did not attach to pid %d within 15 seconds', pid)
+1 -1
View File
@@ -1 +1 @@
__version__ = '4.2.0beta0'
__version__ = '4.2.2'
+3 -2
View File
@@ -60,7 +60,8 @@ install_requires = ['paramiko>=1.15.2',
'psutil>=3.3.0',
'intervaltree>=3.0',
'sortedcontainers',
'unicorn>=1.0.2rc1', # see unicorn-engine/unicorn#1100, unicorn-engine/unicorn#1170
'unicorn>=1.0.2rc1,<1.0.2rc4', # see unicorn-engine/unicorn#1100, unicorn-engine/unicorn#1170, Gallopsled/pwntools#1538
'six>=1.12.0',
]
# Check that the user has installed the Python development headers
@@ -82,7 +83,7 @@ setup(
name = 'pwntools',
python_requires = '>=2.7',
packages = find_packages(),
version = '4.2.0beta0',
version = '4.2.2',
data_files = [('',
glob.glob('*.md') + glob.glob('*.txt')),
],
Regular → Executable
+6
View File
@@ -64,6 +64,11 @@ setup_travis()
rm -rf usr/share
}
setup_ipv6()
{
echo 0 | sudo tee /proc/sys/net/ipv6/conf/all/disable_ipv6
}
setup_gdbserver()
{
# https://docs.improbable.io/reference/14.3/shared/debug-cloud-workers#common-issues
@@ -186,6 +191,7 @@ setup_osx()
if [[ "$USER" == "travis" ]]; then
# setup_travis
setup_ipv6
setup_gdbserver
setup_android_emulator
elif [[ "$USER" == "shippable" ]]; then
Regular → Executable
+8 -1
View File
@@ -32,6 +32,7 @@ fi
# Generate a new key so that we can log into it
ssh-keygen -t rsa -f ~/.ssh/$U -N ''
chmod og-rw ~/.ssh
# Load the public key into a memory for below
pubkey=$(cat ~/.ssh/$U.pub)
@@ -42,6 +43,7 @@ USUDO mkdir $H/.ssh || true
USUDO tee -a $H/.ssh/authorized_keys <<EOF
from="127.0.0.1" $pubkey
EOF
USUDO chmod 700 $H $H/.ssh $H/.ssh/authorized_keys
# In the pwntools examples, we ssh to 'example.pwnme'
# Set up an SSH config entry to make this actually work
@@ -51,8 +53,13 @@ Host example.pwnme
User $U
HostName 127.0.0.1
IdentityFile ~/.ssh/$U
StrictHostKeyChecking no
EOF
chmod 700 ~ ~/.ssh
ssh -o "StrictHostKeyChecking no" -vvvv [email protected] id
ls -la ~/.ssh
USUDO ls -la $H/.ssh
ssh -v [email protected] id
set +ex
Regular → Executable
View File
File mode changed.