Difference between revisions of "Hack.lu Writeups"
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| + | * [[Hack.lu 2012 Writeups]] |
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| − | ==2012 CTF by Fluxfingers== |
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| + | * [[Hack.lu 2015 Writeups]] |
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| − | It was again a great moment of fun to participate to this year's CTF organised by [http://www.fluxfingers.net/ Fluxfingers] @ Hack.lu 2012 |
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| + | * [[Hack.lu 2017 Writeups]] |
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| − | ===T-Shirt contest=== |
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| − | This one is quite apart from the other challenges for several reasons: |
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| − | * The challenge was actually printed on participants' t-shirts, as of last year |
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| − | * Surprisingly enough, only 2 teams over the 290 who scored at least one challenge managed to solve it!! (the last team of the top 50 and another one further in the scoreboard |
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| − | * The challenge was the only one not designed by Fluxfingers team but... by myself, with the help of Alex to design the actual T-Shirt |
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| − | Still I played the ctf fairly, proof is that even my team didn't find the solution ;-) |
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| − | I must admit, the challenge was easier for local people than for remote people, reason is that a list of words was written on the T-Shirt while online a patchwork of unrelated images was visible. |
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| − | <br>On first evening, as no one solved it yet, we added an extra hint in the challenge description. |
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| − | <br>On last morning, as no remote team managed to solve it, we also published a picture of the T-Shirt for remote teams. Apparently it didn't help... |
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| − | <br>Here is it: |
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| − | <source lang=text> |
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| − | 28 - T-shirt |
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| − | Same as local T-shirt challenge: https://ctf.fluxfingers.net/challenges/noclue.png |
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| − | Send your answers to (masked email on this wiki as it's too late and we hate spammers) |
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| − | Hint: "It was in use sometime ago" #ctf #infosec |
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| − | Hint: https://ctf.fluxfingers.net/challenges/IMG_4924.JPG |
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| − | </source> |
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| − | Here is noclue.png: |
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| − | <br><br>[[Image:Hacklu2012 Noclue.png]] |
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| − | <br><br> |
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| − | Each element represents one word. Maybe you don't guess the exact right word for each of them but it doesn't really matter as with a few words, it's enough to find the trick as we will see later. |
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| − | <br><br>Second image is the T-Shirt itself and there you get the exact word list: |
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| − | <br><br>[[Image:Hacklu2012 IMG 4924.png]] |
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| − | <br><br> |
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