Hack.lu 2010 CTF write-ups

1 – Fun »»

On the high seas, the nights get boring.
Try to win the game against the captain!
pirates.fluxfingers.net port 6565/tcp

Hack.lu 2010 CTF #1 (Fun 300, Rock Lizard Spock) writeup by vos

3 – Like skies that are so blue »»

Sometime even pirates have a lazy sunday…
download

Hack.lu 2010 CTF #3, #11, #14 (Most Epic Challenges :) writeup by vos

5 – Captain Redbeard’s Battleships »»

While pirating-out a bit, you run into Captain Redbeard and his armada of ghost ships. source1 source2
pirates.fluxfingers.net 2204 /tcp

Hack.lu 2010 CTF Challenge #5 Writeup by hellman

7 – Breiers Deathmatch »»

Schnuce Breier has challenged you to a cryptographer’s deathmatch.
Connect to pirates.fluxfingers.net 8007/tcp and get the secret number

Hack.lu 2010 CTF Challenge #7 Writeup by hellman

8 – sad little pirate »»

Our sad little pirate haes lost his password.
It is known that the pirate has just one hand left; his left hand. So the paessword input is quite limited. Also he can still remember that the plaintext started with “674e2” and his password with “wcwteseawx” Please help the sad pirate finding his plaintext.

Hack.lu 2010 CTF Challenge #8 Writeup by hellman

10 – Chip Forensic »»

Your co-worker has found a suspicious USB device on his desk, but wouldn’t dare trying to plug it in.
Instead he removed the case and found some flash memory on the board. After having removed the memory chip and used up all his electrical engineering skills he finally found out what was stored. Now he asks you to find out how to interpret the chip’s memory

Hack.lu 2010 CTF Challenge #10 Writeup by lambdaman

11 – Ecrime Business »»

Cap’n Bill Greasepalms wants to start an ecrime business.
If you want to join his crew you have to proof your pdf skillz.
Get the secret key and you get 100 coins.
download

Hack.lu 2010 CTF #3, #11, #14 (Most Epic Challenges :) writeup by vos

13 – My Cool Blog »»

Captain Rumbarrel is shocked because he found out that the filthy pirate Boozybold has stolen a whole shipment of rum! So Rumbarrel wants his revenge by hacking Boozybolds cool blog. Unfortunately he can not hack, so help him and get 250 gold coins!

Hack.lu 2010 CTF #13 (My Cool Blog) writeup by vos

14 – Captain Flints Key »»

Little Bobby Flint was able to download a file containing the key for Captian Flints treasure chest.
Unfortunately the download finished incorrectly and the file is corrupt.
Help him to recover the key and gain 200 gold coins.
download

Hack.lu 2010 CTF #3, #11, #14 (Most Epic Challenges :) writeup by vos

16 – Captain Rattlesnake’s Riddle »»

Solve this riddle to impress Captain Rattlesnake!
download

Hack.lu 2010 CTF #16 (Rattlesnake’s Riddle) writeup writeup by vos and hellman

17 – Brainfuck »»

You found a backdoor on Captain Brainfuck’s webspace. Exploit it and read his secret file!

Hack.lu 2010 CTF #17 (Brainfuck) writeup by vos

18 – Digital Treasure Chest »»

You were asked to pentest the 1.1 beta-version of the digital treasure chest.
Finding an authentication bypass appears to be trivial to you.
pirates.fluxfingers.net 6969/tcp

Hack.lu 2010 CTF Challenge #18 Writeup by hellman

19 – Magicwall »»

Captain Hook found the following link after looting his last frigate.
He heard that the file flag on this system is worth 400 coins.
Give him this file and he will reward you!
ssh: pirates.fluxfingers.net:7022
user: ctf
password: ctf

Hack.lu 2010 CTF Challenge #19 Writeup by hellman

22 – Pirates Wisdom »»

Captian Iglo heard there is a secret wisdom in the well known pirate wisdom system.
Log in to ssh pirates.fluxfingers.net:9022
user: ctf
password: ctf
and get the content of key.txt.
You get rewarded with 300 coins.

Hack.lu 2010 CTF Challenge #22 Writeup by hellman