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* Switch to federated debuginfod service

elfutils.org offers a federating proxy server which forwards the requests to all other debuginfod servers of the different linux distributions.

https://sourceware.org/elfutils/Debuginfod.html

Use that instead by default to increase our successrate and potentially include new servers automatically once the distro sets one up.

* Use DEBUGINFOD_URLS envvar for server selection

The `DEBUGINFOD_URLS` environment variable is what you use for your normal debuginfod setup to tell it where to look for debug symbols.

Parse it as well and prepend it to the list of servers to try to allow for dynamic adjusting of the target servers.
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Jun 11, 2015

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)
# EXPLOIT CODE GOES HERE
r.send(asm(shellcraft.sh()))
r.interactive()

Documentation

Our documentation is available at docs.pwntools.com

A series of tutorials is also available online

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

Installation

Pwntools is best supported on 64-bit Ubuntu LTS releases (14.04, 16.04, 18.04, and 20.04). Most functionality should work on any Posix-like distribution (Debian, Arch, FreeBSD, OSX, etc.).

Python3 is suggested, but Pwntools still works with Python 2.7. 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 python3 python3-pip python3-dev git libssl-dev libffi-dev build-essential
python3 -m pip install --upgrade pip
python3 -m 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.

Contribution

See CONTRIBUTING.md

Contact and Community

If you have any questions not worthy of a bug report, join the Discord server at https://discord.gg/96VA2zvjCB