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.
The Few Chosen’s (TFC) CTF was this weekend and I found it really engrossing. I really enjoyed the breadth and quality of the challenges. Along with quality pwnables which I have really enjoyed lately was some excellent crypto challenges which take me back to my favourite CTF category.
Here’s three more binary exploitation challenges from the 4th edition of MetaRed CTF 2021. Each was the same theme but different exploits were necessary each time.