Category
Writeup
15 posts.
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31C3 CTF: Maze write-up
This is my write-up for the maze challenge in the 31C3 CTF, that I played with the Hacking For Soju team. We “only” got 10th place (out of the 286 teams that scored any points at all), but considering that…
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Ghost in The Shellcode 2015 Teaser: Don't Panic! Shift Keying! Solution
This was the only challenge remaining for us (ClevCode Rising) in the GITS 2015 Teaser CTF (http://ghostintheshellcode.com/2015-teaser/finalscores.txt), after I had solved the Citadel challenge and my team mate Zelik had solved Lost in Time. With no previous GNU Radio experience,…
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Codegate Quals 2012: Vuln 500
This is my writeup for the Vuln 500 challenge in the Codegate Quals 2012 competition.
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CanYouCrackIt.co.uk / GCHQ Challenge Solution – Stage 3
The final stage of the GCHQ challenge was a small (5kB) x86 Windows/cygwin binary (available here). Analyzing it in IDA Pro, I could see that it expects a 24 byte license file with the following format:
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CanYouCrackIt.co.uk / GCHQ Challenge Solution – Stage 2
After cracking stage 1 of the GCHQ challenge, we get the URL to the Javascript code available here.
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CanYouCrackIt.co.uk / GCHQ Challenge Solution - Stage 1
I heard about “the code” at www.canyoucrackit.co.uk during the first friday of december (2011-12-02), and cracked the final stage on sunday two days later. The reason for not cracking it all during friday evening was, unfortunately, not because it presented…
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PlaidCTF 2011 - 25 - PC Rouge - 600 pts
This is my writeup for the twenty-fifth challenge in the PlaidCTF 2011 competition. The information for the challenge was:
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PlaidCTF 2011 - 36 - I'm HUNGRY!..as hell - 250 pts
This is my writeup for the thirty-sixth challenge in the PlaidCTF 2011 competition. The information for the challenge was:
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PlaidCTF 2011 - 26 - Hashcalc2 - 150 pts
This is my writeup for the twenty-sixth challenge in the PlaidCTF 2011 competition. The information for the challenge was:
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PlaidCTF 2011 - 23 - Exploit me - 200 pts
This is my writeup for the twenty-third challenge in the PlaidCTF 2011 competition. The information for the challenge was:
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PlaidCTF 2011 - 22 - Hashcalc1 - 300 pts
This is my writeup for the twenty-second challenge in the PlaidCTF 2011 competition. The information for the challenge was:
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PlaidCTF 2011 - 21 - Key leak - 450 pts
This is my writeup for the twenty-first challenge in the PlaidCTF 2011 competition. The information for the challenge was:
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PlaidCTF 2011 - 20 - C++ upgrade - 300 pts
This is my writeup for the twentieth challenge in the PlaidCTF 2011 competition. The information for the challenge was: “They have an update for the vulnerable C++ program trying to fix the bug. However, the coders at AED suck and…
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PlaidCTF 2011 - 19 - Another small bug - 250 pts
This is my writeup for the nineteenth challenge in the PlaidCTF 2011 competition. The information for the challenge was:
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PlaidCTF 2011 – 18 - A small bug - 250 pts
This is my writeup for the eighteenth challenge in the PlaidCTF 2011 competition. The information for the challenge was: “Get access to the key using /opt/pctf/z1/exploitme. ssh username@a5.amalgamated.biz”
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