ChristmasCTF had some interesting problems. We started late but still did pretty well. I focused mainly on web and tried to do some of the easier pwn problems. The CTF wasn’t on CTFTime but was located at https://x-mas.aleph.kr/.

The one binary exploitation problem I tackled this CTF was solo_test which was a 64 bit binary. The problem seemed to be a standard problem yet it has been one of my first successful exploitations in competition and was a good learning experience.

This is my first blog post and I’m writting it a while after the CTF has concluded however I need to start somewhere right? I wasn’t able to contribute much to this CTF as I was preparing for finals. However, I did have a great time solving and attempting what I could and it was great to work with other members of redpwn.