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McCaulay committed Feb 3, 2023
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162 changes: 162 additions & 0 deletions .gitignore
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# Byte-compiled / optimized / DLL files
__pycache__/
*.py[cod]
*$py.class

# C extensions
*.so

# Distribution / packaging
.Python
build.sh
upload.sh
build/
develop-eggs/
dist/
downloads/
eggs/
.eggs/
lib/
lib64/
parts/
sdist/
var/
wheels/
share/python-wheels/
*.egg-info/
.installed.cfg
*.egg
MANIFEST

# PyInstaller
# Usually these files are written by a python script from a template
# before PyInstaller builds the exe, so as to inject date/other infos into it.
*.manifest
*.spec

# Installer logs
pip-log.txt
pip-delete-this-directory.txt

# Unit test / coverage reports
htmlcov/
.tox/
.nox/
.coverage
.coverage.*
.cache
nosetests.xml
coverage.xml
*.cover
*.py,cover
.hypothesis/
.pytest_cache/
cover/

# Translations
*.mo
*.pot

# Django stuff:
*.log
local_settings.py
db.sqlite3
db.sqlite3-journal

# Flask stuff:
instance/
.webassets-cache

# Scrapy stuff:
.scrapy

# Sphinx documentation
docs/_build/

# PyBuilder
.pybuilder/
target/

# Jupyter Notebook
.ipynb_checkpoints

# IPython
profile_default/
ipython_config.py

# pyenv
# For a library or package, you might want to ignore these files since the code is
# intended to run in multiple environments; otherwise, check them in:
# .python-version

# pipenv
# According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
# However, in case of collaboration, if having platform-specific dependencies or dependencies
# having no cross-platform support, pipenv may install dependencies that don't work, or not
# install all needed dependencies.
#Pipfile.lock

# poetry
# Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
# This is especially recommended for binary packages to ensure reproducibility, and is more
# commonly ignored for libraries.
# https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
#poetry.lock

# pdm
# Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
#pdm.lock
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# https://pdm.fming.dev/#use-with-ide
.pdm.toml

# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
__pypackages__/

# Celery stuff
celerybeat-schedule
celerybeat.pid

# SageMath parsed files
*.sage.py

# Environments
.env
.venv
env/
venv/
ENV/
env.bak/
venv.bak/

# Spyder project settings
.spyderproject
.spyproject

# Rope project settings
.ropeproject

# mkdocs documentation
/site

# mypy
.mypy_cache/
.dmypy.json
dmypy.json

# Pyre type checker
.pyre/

# pytype static type analyzer
.pytype/

# Cython debug symbols
cython_debug/

# PyCharm
# JetBrains specific template is maintained in a separate JetBrains.gitignore that can
# be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
# and can be added to the global gitignore or merged into this file. For a more nuclear
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#.idea/
21 changes: 21 additions & 0 deletions LICENSE.md
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MIT License

Copyright (c) 2023 okrager

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
75 changes: 75 additions & 0 deletions README.md
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# okrager

## Overview
The "okrager" console application allows you to generate an exploitable [Okage: Shadow King](https://en.wikipedia.org/wiki/Okage:_Shadow_King) game save which will leverage a stack buffer-overflow vulnerability within the player's name in the save file. This results in the code execution of the supplied PS2 ELF file when you select "RESTORE GAME" within the [Okage: Shadow King](https://en.wikipedia.org/wiki/Okage:_Shadow_King) game.

The application requires you to pass an existing input memory card file (.ps2/.card). Next, it injects the staging shellcode and the supplied PS2 ELF then saves the game save as a new output file (.ps2/.card).

## Installation

Use the following command to install the okrager package with pip:

~~~
python -m pip install okrager
~~~

Make sure the local bin path is in your path. If not, add it to `~/.bashrc` or `~/.zshrc`:

~~~sh
export PATH="$HOME/.local/bin:$PATH"
~~~

## Usage

~~~
usage: okrager [-h] [-c CODE] [-s1 STAGE1] [-s2 STAGE2] [-v {none,normal,debug}] input output elf
Generate an Okage Shadow King exploitation game save.
positional arguments:
input The input .ps2/.card game save file.
output The exported .ps2/.card game save file.
elf The compiled PS2 ELF filepath to inject.
optional arguments:
-h, --help show this help message and exit
-c CODE, --code CODE The game save identifier code. (Default: BASCUS-97129)
-s1 STAGE1, --stage1 STAGE1
The stage 1 shellcode to be executed.
-s2 STAGE2, --stage2 STAGE2
The stage 2 shellcode to be executed.
-v {none,normal,debug}, --verbosity {none,normal,debug}
The script output verbosity mode. (Default: normal)
~~~

## Examples

### PS4 / PS5
~~~
└─$ okrager VMC0.card VMC0-exploit.card program.elf
[#] Loading stagers and ELF
[#] Loading memory card
[#] Exporting BASCUS-97129
[#] Reading BASCUS-97129.psu
[#] Modifying bkmo0.dat
[#] Writing ELF
[#] Saving BASCUS-97129.psu
[#] Deleting BASCUS-97129
[#] Importing BASCUS-97129.psu
[+] Exploit wrote to save file "VMC0-exploit.card"
~~~

### PCSX2
~~~
└─$ okrager Mcd001.ps2 Mcd001-exploit.ps2 program.elf
[#] Loading stagers and ELF
[#] Loading memory card
[#] Exporting BASCUS-97129
[#] Reading BASCUS-97129.psu
[#] Modifying bkmo0.dat
[#] Writing ELF
[#] Saving BASCUS-97129.psu
[#] Deleting BASCUS-97129
[#] Importing BASCUS-97129.psu
[+] Exploit wrote to save file "Mcd001-exploit.ps2"
~~~
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