ctf-writeups

jailCTF 2025

Link: https://ctf.pyjail.club/challs

CTFTime: https://ctftime.org/event/2737

Offical Writeup: https://github.com/jailctf/challenges-2025

Result: 1595 Points, 14th Place

Solved Challenges:

• asmaas
• battlecode
• blindness
• calc defanged
• computer-monitor
• dc jail
• modelscanjail
• rustjail

Not solved in competition:

• brainfudge
• flag lottery
• impossible
• one
• primal
• seven7seven

Won writeup prize:

Congratulations to the writeup winners!

Best unintended solution ($100): @lynn | https://gist.github.com/lynn/bfd7a64c6da4d6a4041aedf48e0fb741

Normal writeups ($50 each, and in no particular order so you should read them all):
@jiegec | https://jia.je/ctf-writeups/2025-10-04-jailctf-2025/
@mji | https://mji.mataroa.blog/blog/jailctf-2025/
@bulmenisaurus | https://bulmenisaurus.github.io/pyjail2025-writeup/
@yodi555 | https://medium.com/@yoavsh97/jailctf-2025-impossible-writeup-864af327045f
@joinmatrix | https://gist.github.com/ndren/1aeb22d0c389e991a46e47e5a3f13f3a
@joseph | https://jsur.in/posts/2025-10-08-jailctf-2025-stupidcplusplus
@Ench Lolz | https://github.com/EnchLolz/JailCTF-25/blob/main/flag_lottery.md
@Neobeo | https://adib.au/2025/mathjail2/
@Alexis | https://writeups.fr/wu/primal.html