Tag Archives: Reverse Engineering

Pandora’s Box

After c0ne build the vulnerable binary for the knock-knock challenge, he now made a complete boot2root VM with 5 levels: Pandora’s Box! I had the pleasure of being one of the testers for the vulnurable binaries, so I got a sneak peek for level 2 and 3 (after which level 2 changed quite a bit). I’l be splitting up the writeup per level and I’l only describe the final levels that ended up in the VM. Continue reading

Pwnium CTF – Kernel land write-up

So.. My first CTF writeup! I participated with a few others in the Pwnium capture-the-flag. One of the challenges I looked at was the Reverse Engineering challenge “Kernel Land”. The challenge gave a link to a binary with the tip: “The third Tick gives you the answer ;)”. After a first peek it appeared to be a linux binary:

root@kalipwn:~/Downloads# file kernel
kernel: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), statically linked, not stripped
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