Install sucrack by entering the following commands in the terminal:
sudo apt update sudo apt install sucrack
Description:
multithreaded su bruteforcer
sucrack is a multithreaded Linux/UNIX tool for cracking local user accounts via wordlist bruteforcing su. This tool comes in handy when you've gained access to a low-privilege user account but are allowed to su to other users. Many su implementations require a pseudo terminal to be attached in order to take the password from the user. This can't be easily achieved with a simple shell script. This tool, written in C, is highly efficient and can attempt multiple logins at the same time.
Homepage: https://labs.portcullis.co.uk/tools/sucrack/
Version: 1.2.3-4
Section: universe/admin