CTF framework and exploit development library
Python Assembly Shell
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pwntools - CTF toolkit

pwntools logo

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pwntools is a CTF framework and exploit development library. Written in Python, it is designed for rapid prototyping and development, and intended to make exploit writing as simple as possible.

from pwn import *
context(arch = 'i386', os = 'linux')

r = remote('exploitme.example.com', 31337)

Try It Now!

You can now do a live demo of Pwntools, right in your browser.


Our documentation is available at docs.pwntools.com

To get you started, we've provided some example solutions for past CTF challenges in our write-ups repository.


pwntools is best supported on 64-bit Ubuntu 12.04 and 14.04, but most functionality should work on any Posix-like distribution (Debian, Arch, FreeBSD, OSX, etc.). Python 2.7 is required.

Most of the functionality of pwntools is self-contained and Python-only. You should be able to get running quickly with

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

However, some of the features (assembling/disassembling foreign architectures) require non-Python dependencies. For more information, see the complete installation instructions here.




If you have any questions not worthy of a bug report, feel free to ping us at #pwntools on Freenode and ask away. Click here to connect. There is also a mailing list for higher latency discussion.