This whitepaper acts as a cheatsheet for methodologies to apply with Linux and Windows privilege escalation.
You can download it from the following link: https://packetstormsecurity.com/files/download/161787/Priv-Esc-cheatsheet.pdf
Source: https://packetstormsecurity.com/files/161787/Privilege-Escalation-Automated-Script-Linux-And-Windows.html