This challenge was on remote exploiting. The binary is for FreeBSD. The program is some kind of a Virtual Machine, with it’s own stack and memory. binary Summary: memory address check mistake, write shellcode and overwrite _exit function pointer
June 2011 archive
Jun 08
Defcon CTF Quals 2011 – Binary 500
This challenge was on reverse engineering. The binary is 32bit MZ-PE executable for Windows. binary Summary: reverse engineering, anti-anti-debugging challenge
Jun 07
Defcon CTF Quals 2011 – Pwnables 100
This challenge was on remote exploiting. The binary is for FreeBSD. binary Summary: buffer overflow, jump to shellcode (bruteforce address)
Jun 06
Defcon CTF Quals 2011 – Pwnables 200
This challenge was on remote exploiting. The binary is for SunOS (Solaris). binary Summary: shellcoding challenge
Jun 06
Defcon CTF Quals 2011 – Pwnables 400
This challenge was on remote exploiting. The binary is for Linux, statically linked and stripped. binary Summary: overflow, ROP for execve(“/bin/sh”)