pwncat_dirtypipe

pwncat module that automatically exploits CVE-2022-0847 (dirtypipe)

Introduction

The purpose of this module is to attempt to exploit CVE-2022-0847 (dirtypipe) on a target when using pwncat.

There is no need to setup any directories, compile any source or even have gcc on the remote target; the dirtypipe module takes care of this automatically using the pwncat framework.

Setup and Use

• Simply copy dirtypipe.py somewhere on your host where pwncat-cs is installed. ie: /home/user/pwncat_mods
• In pwncat, simply type: load /home/user/pwncat_mods
• To confirm the module loaded, type: search dirtypipe. You should see something like this:

(local) pwncat$ search dirtypipe
                                                      Results                                                      
                   ╷                                                                                               
  Name             │ Description                                                                                   
 ══════════════════╪══════════════════════════════════════════════════════════════════════════════════════════════ 
  dirtypipe        │ Exploit CVE-2022-0847 to local privesc to root via dirtypipe

• To execute, simply type run dirtypipe. If it's successful, you should see the UID change to 0, and now be root. ie:

(local) pwncat$ run dirtypipe

Tips

• If you don't want to always call load, you can have pwncat automatically load this module on startup by placing it in ~/.local/share/pwncat/modules
• To use the cross-compiler to build the exploit on your machine and upload it to the target, you need to set the cross variable in your pwncatrc file. This file is typically found at ~/.local/share/pwncat/pwncatrc`. ie:

# Set the gcc path
set cross "/usr/bin/gcc"

Thanks

A special shout out to Caleb Stewart for having an awesome framework to build this on top of.