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 …
Tag: 2011
Sep 21
hack.lu CTF 2011 Simplexor (200)
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
Sep 21
hack.lu CTF 2011 Antique Space Shuttle (300)
Category: exploiting Your command is to get as much information about the crew of an antique space shuttle. We know our acient father used finger as reference point at nc ctf.hack.lu 2003 Summary: bash injection, and buffer overflow on a suid binary to get more privilegies
Sep 21
hack.lu CTF 2011 Space Station 0xB321054A (300)
Category: exploiting You have seen a deserted space station. Your task is to enter it. The first barrier is the access system. But you can find a module with the application on it. Here is the file: download What is the key? (There is also station A, but station B is the advanced one.) Summary: …
Sep 13
DEFCON 19 Final – hiver
This challenge was on logic and understanding of the bloom filter. The binary is for FreeBSD. binary Summary: understanding of the bloom filter, bruteforce bloom filter set.
Sep 13
DEFCON 19 Final – forgetu
This challenge was on remote exploiting. The binary is for FreeBSD. binary Summary: bruteforce password, buffer overflow, jump to shellcode
Aug 12
Team IV took 4th place in the DEFCON 19 CTF FINAL
LeetMore in the Team IV took 4th place in the DEFCON 19 CTF FINAL! Congratulations guys! This is definitely a great achievement! Proof: http://ddtek.biz
Jul 25
NdH2k11 WaRgam3 – CrackMe 400 (2000pts). Part 2
It is second part of CrackMe task describing. First one you can find there In this part I will detail the analysis of driver ReverMe1.sys