Level 4

Ptrace your way

Pass prints the password for the level you are on. Try to make it print the next level's password.
This time it is not so easy:
pass: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for GNU/Linux 2.4.1, statically linked, stripped

Tip :

Pass uses geteuid() to get its information.
Read man ptrace

Semtex3 Solutions

look at the readme in your home directory to find cool and interesting solutions to semtex3