Defcon CTF 2015 - Access Control - Reverse Engineering - 1 Point challenge

Another one pointer, this time in the RE category. For this one I am going to give an example of solving something “just enough” to get the points so you can move on to the next flag. I’ve read other writeups about this and notice some people reversed very precisely to get a perfectly working exploit. I, on the other hand, was willing to cut corners!

Defcon was finally here and I was so totally pumped for it. When it dropped, so did my jaw, it wasn’t going to be easy. That’s for sure. Defcon had some of the evilest, trickiest challenges I’ve ever faced in a CTF. And it was super fun because of it.

ASIS CTF 2015 - simple_algorithm - 100 point Crypto Challenge

Volga CTF 2015 - Captcha - 150 point Stego challenge

Volga CTF 2015 - carry - 500 point Crypto Challenge