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2018

VincCTF 2018 TokenVault v1 writeup

1 minute read Published:

Writeup for the tokenvault 1 challenge of VincCTF CTF 2018
A writeup for nice little challenge from the 2018 VincCTF. A CTF full of crypto challenges. The TokenVault v1 writeup is a nice gentle introduction into exploiting cryptography bugs. https://git.insomnia247.nl/coolfire/VincCTF-2018/blob/master/TokenVault1.md#tokenvault-1

Kringlecon / SANS Holiday Hack Challenge 2018 Writeup

39 minute read Published:

Writeup for the SANS Holiday Hack Challenge 2018
Question 1: What phrase is revealed when you answer all of the KringleCon Holiday Hack History questions? For hints on achieving this objective, please visit Bushy Evergreen and help him with the Essential Editor Skills Cranberry Pi terminal challenge. Just quit vi, using :q Hi, I’m Bushy Evergreen. I’m glad you’re here, I’m the target of a terrible trick. Wow, it seems so easy now that you’ve shown me how!

Hack.lu 2018 Babyphp Writeup

1 minute read Published:

Writeup for the babyphp challenge of Hack.lu CTF 2018
Full writeup for the Babyphp challenge from the 2018 Hack.lu CTF. Lots of interesting PHP oddities to explore! https://git.insomnia247.nl/coolfire/hacklu-ctf-2018/blob/master/baby-php.md

PwCTF Pre-Qualifiers 2018 Writeup

1 minute read Published:

Writeup for the PwCTF pre-qualifiers of 2018
Just a short writeup of the pre-qualifier rounds for this years PwCTF. https://git.insomnia247.nl/coolfire/PwCTF-prequals_2018