BSides Canberra pwn-noob CTF Write-up

8 minute read Published:

A writeup for the pwn-noob exploit challenge at the BSides Canberra 2017 CTF.


The first exploitation (pwnable) challenge at the BSides Canberra 2017 CTF was pwn-noob - and clearly, I’m an über-noob because I couldn’t figure out how to pwn it during the comp.

However, a couple of nights later (with a couple of gentle nudges from CTF-organiser extraordinaire OJ), I finally got there! Here’s a brief rundown of the challenge binary, concluding with a script which implements a working exploit.