rogeliopumajulca/cve-2022-0847Local privilege escalation exploit for Linux kernel CVE-2022-0847 (Dirty Pipe), allowing arbitrary file overwrites and privilege escalation on affected systems.
Exploit Title: Local Privilege Escalation in Linux kernel (CVE-2022-0847)
Tested on: ubuntu 20.04.1 LTS
Affect product:Linux kernel 5.8 or later
Fixed Product:Linux kernel 5.16.11, 5.15.25, 5.10.102
CVE ID: CVE-2022-0847
Local Privilege Escalation
gcc exploit.c -o exploit
cp /bin/passwd .
sudo chown root:root ./passwd
sudo chmod +s ./passwd
./exploit ./passwd
https://dirtypipe.cm4all.com/ https://sysdig.com/blog/cve-2022-0847-dirty-pipe-sysdig/
2021-04-29: first support ticket about file corruption
2022-02-19: file corruption problem identified as Linux kernel bug, which turned out to be an exploitable vulnerability
2022-02-20: bug report, exploit and patch sent to the Linux kernel security team
2022-02-21: bug reproduced on Google Pixel 6; bug report sent to the Android Security Team
2022-02-21: patch sent to LKML (without vulnerability details) as suggested by Linus Torvalds, Willy Tarreau and Al Viro
2022-02-23: Linux stable releases with my bug fix (5.16.11, 5.15.25, 5.10.102)
2022-02-24: Google merges my bug fix into the Android kernel
2022-02-28: notified the linux-distros mailing list
2022-03-07: public disclosure