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Google CTF 2018 (Quals) – writeup JS safe 2.0

The qualifications for the Google Capture The Flag 2018 (ctftime.org) ran from 23/06/2018, 00:00 UTC to 24/06/2018 23:59 UTC.

The CTF was worked out very well. There have been plenty of interesting and creative challenges.

This time I decided to focus on the category web and managed to solve the challenge JS safe 2.0, which was the easiest one of the web-challenges based on the amount of solves. Nevertheless it really took my some time to dodge all the pitfalls I stumbled upon while solving the challenge.

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Hacky Easter 2018 writeup

As every year hacking-lab.com carried out the annual Hacky Easter event with 27 challenges. I could not spend as much time as I would have liked to on solving the challenges, but after all I managed to collect 25 of the 27 eggs and focused on this writeup.
Easy
01 Prison Break
02 Babylon
03 Pony Coder
04 Memeory
05 Sloppy & Paste (mobile)
06 Cooking for Hackers
07 Jigsaw
08 Disco Egg
09 Dial Trial (mobile)
Medium
10 Level Two
11 De Egg you must (not solved)
12 Patience (mobile)
13 Sagittarius…
14 Same same…
15 Manila greetings
16 git cloak –hard
17 Space Invaders
18 Egg Factory
Hard
19 Virtual Hen
20 Artist: No Name Yet (not solved)
21 Hot Dog
22 Block Jane
23 Rapbid Learning
24 ELF
Hidden
25 Hidden Egg #1
26 Hidden Egg #2
27 Hidden Egg #3

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angstromCTF 2018 – writeup hellcode

The angstromCTF 2018 (ctftime.org) ran from 16/03/2018, 20:00 UTC to 23/03/2018 00:00 UTC.

As the description on ctftime.org states, the ctf is primarily geared towards high school students but with a very wide range of challenge difficulty.

There have been a lot of interesting challenges which have been fun to do. I decided to make a writeup for the pwn challenge hellcode.

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