GEF - GDB Enhanced Features
GEF (pronounced ʤɛf - "Jeff") is a kick-ass set of commands for X86, ARM,
MIPS, PowerPC and SPARC to make GDB cool again for exploit dev. It is aimed to
be used mostly by exploit developers and reverse-engineers, to provide
additional features to GDB using the Python API to assist during the process of
dynamic analysis and exploit development.
It has full support for both Python2 and Python3 indifferently (as more and more
distros start pushing
gdb compiled with Python3 support).
GDB Made Easy
- One single GDB script
- Entirely OS Agnostic, NO dependencies:
GEFis battery-included and is installable instantly
- Fast limiting the number of dependencies and optimizing code to makethe commands as fast as possible
- Provides a great variety of commands to drastically change your debugging experience in GDB.
- Easily extensible to create other commands by providing more comprehensible layout to GDB Python API.
- Full Python3 support (Python2 support was dropped in 2020.03) - check out
gef-legacyfor a Python2 compatible version, and the compatibility matrix for a complete rundown of version support.
- Built around an architecture abstraction layer, so all commands work in any GDB-supported architecture such as x86-32/64, ARMv5/6/7, AARCH64, SPARC, MIPS, PowerPC, etc.
- Suited for real-life debugging, exploit development, just as much as for CTFs
GEF has no dependencies, is fully battery-included and works out of the box. You can get started with GEF in a matter of seconds, by simply running:
bash -c "$(curl -fsSL https://gef.blah.cat/sh)"
For more details and other ways to install GEF please see installation page.
Then just start playing (for local files):
$ gdb -q /path/to/my/bin gef➤ gef help
Or (for remote debugging):
remote:~ $ gdbserver 0.0.0.0:1234 /path/to/file Running as PID: 666
local:~ $ gdb -q gef➤ gef-remote -t your.ip.address:1234 -p 666
Bugs & Feedbacks
gdb, exploitation or other topics, feel free to join our Discord channel.
For bugs or feature requests, just go here and provide a thorough description if you want help.
GEF fully relies on the GDB API and other Linux-specific sources of information (such as
/proc/<pid>). As a consequence, some of the features might not work on custom or hardened systems such as GrSec.
Or if you just like the tool, feel free to drop a simple "thanks" on Discord, Twitter or other, it is always very appreciated.
We would like to thank in particular the following people who've been sponsoring GEF allowing us to dedicate more time and resources to the project:
- The GEF logo was designed by TheZakMan