Packages and Binaries:

sucrack

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.

Installed size: 50 KB
How to install: sudo apt install sucrack

sucrack

Is a multithreaded Linux/UNIX tool for brute-force cracking of local user accounts via su.

root@kali:~# sucrack -h
yah, very funny!