Jan 30
files running at hellothere.final2012.ghostintheshellcode.com Summary: MITM attack
Jan 30
Jacked file running at jacked.final2012.ghostintheshellcode.com:2121 Summary: weak random, BlackJack bot, format string
Jan 30
Question: Fanatic 300 Points Remeber the past. (Link) Here we have a NES emulator written on javascript. ROM can easily be dumped from there.
Jan 30
Question: VoxVeritas 400 Points Find the secret passage. (File)
Jan 30
Question: Noughts and crosses 300 Points Solve the puzzle! tictactoe.final2012.ghostintheshellcode.com:9797
Jan 30
Question: SuperSecure 250 Points Use your team name and generate a valid answer. (File) Summary: xor-chained sha256 and sha512
Jan 26
This very secure locking mechanism encloses files and only gives them to you when you know the passphrase. Find it and you will have the flag. Category: reversing Summary: find out a xor cipher, use xortool to get the key
Jan 08
Category: reverse, crypto Summary: LLVM bytecode with polynomial inversion file
Oct 08
Category: crypto There is also this nice new spaceship in the hangar just waiting for us. Some old-school mobil terminal describes it as: “The Heart of Gold is the sleekest, most advanced, coolest spaceship in the galaxy. “Its stunning good looks mirror its awesome speed and power. It is powered by the revolutionary new Infinite …
Oct 02
Mastermind was an easy service, written on Ruby. Download (mmd.rb and mmd.db) Summary: SQL Injection, guessable id’s, guessable flag (by id)
Sep 22
Category: crypto We already made it. The evil Klingons agression is nearly fended. But their final mothership is well protected and even sacrifing a huge number of battleships caused only minor damage. Spies told us an unclear message caused most technical operators and the commander to leave the ship. Unfortunately we are unable to locate …
Sep 21
Category: crypto We have a spy aboard! For around 5 minutes ago we intercepted an encrypted transmission to an enemy outpost. It seems like we interrupted the mole in the act because we found an open transmission program on our terminals. We are 100% sure that he sent the position of our fleet to the …
Sep 21
Category: crypto To get a better security we deceided to encrypt our most secret document with the secure xor-algorithm. Unfortunately we lost the key. Now we are sad. Can you help us recovering the key? Download Summary: recovering multibyte xor-key, using autocorrelation
