Another great CTF from HTB, this time it started at midnight for me with fresh new challenges each midnight for 5 nights. All the challenges seemed to be of quite high quality and had me thinking hard about the solutions.

Haven’t done any writeups lately as I’ve not been having much time to do CTFs. This CTF caught my attention on the weekend though for its approachable set of intro challenges. I ended up finishing 15th on the scoreboard. This challenge was interesting because of the unintended solutions. I’ll go through one of these below.

A unique combination of Python jailbreak and crypto flaw that had me learning a lot about AES-CBC mode. Super fun for me to get this solution working.

Another fun CTF that gave me plenty of challenges to learn from. I solved a good amount of the Crypto challenges in this one as well as the crypto related pwn challenge. This one got some good use out of my own RSA tooling so I decided to write it up.

HTB sure have a slick new CTF platform and it was a pleasure to play this CTF. I’m not really a fan of how they released challenges though (daily, always 5 challenges, always at midnight for me). Still the challenges were fun so I can’t complain.