Learn SetUID File Abuse

On a Linux system, some programs need to run with higher privileges to do their job, even when a normal user starts them. The "SetUID" or SUID bit is a special permission that allows a program to run with the privileges of its owner, not the user who ran it. If a program is owned by the all-powerful 'root' user and has the SUID bit set, it's a potential gateway to full system control. An attacker can abuse the program's intended functions to "escape" and run their own commands as root.