Das Premium-CTF mit Fahne auf Halbmast
Hint: For libc hunters, it's probably Debian Jessie
Info: No more new challenges coming, so pwn them now and be done till next year! :)
Hint: New hint for ndis!
The CTF is over, thanks for playing! HXP <3 you! :)
crypto / shaman
Oh great shaman!
Somehow the village idiot got his hands on this fancy control machine controlling things. Obviously, we also want to control things (who wouldn’t?), so we reverse-engineered the code. Unfortunately, the machine is cryptographically protected against misuse.
Could you please maybe spend a few seconds of your inestimably valuable time to break that utterly simple cryptosystem and enlighten us foolish mortals with your infinite wisdom?
nc 220.127.116.11 31031
NOTE: Since I am really bad at math, the share received from the server won’t be accepted when sent back. Don’t get confused by this — the challenge is solvable nevertheless.
500 Basepoints + 50 Bonuspoints * min(1, 3/1 Solves) = 550 Points
|LC↯BC||2016-10-01 11:26:07 +0000 UTC|