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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:
/semtex/semtex4: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), statically linked, for GNU/Linux 2.6.15, stripped
Tip :
- Pass uses geteuid() to get its information.
- Read man ptrace