June 2011 archive

Defcon CTF Quals 2011 – Retro 400

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

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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

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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)

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Defcon CTF Quals 2011 – Pwnables 200

This challenge was on remote exploiting. The binary is for SunOS (Solaris). binary Summary: shellcoding challenge

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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”)

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