Ctf
SANS Holiday Hack Challange 2019: Writeup
Here are my solutions for the 2019 SANS Holiday Hack Challenge.
SANS Holiday Hack Challange 2018: Writeup
Like the previous past years, SANS organized their Holiday Hack Challenge. It's a great entry level CTF which introduces the players to a wide range of interesting problems. As always, it's packaged as a nice game with a cute story and I try to play through it every year. This post contains the write-up I submitted as part of the challenge.
T2 Challenge 2018 Winner
This year the annual T2 conference decided that their "challenge" would be a little bit different than previous years. I visited the conference in 2016 after winning a ticket through the T2 challenge and I was very impressed by the high quality of the event. This year the challenge was to submit an application proving "To showcase technical excellence and prove you deserve a free ticket". Being from Sweden, as anyone who know about Swedish culture, this required en enormous amount of willpower as boasting about your skills is about as un-Swedish as it gets. However, I pushed through an submitted a motivational letter in the form of a classic five paragraph essay. To my slight surprise and great joy, I won the challenge! This means I'm going to the T2 conference next week. I'm really looking forward to it and hope to see you there. Again casting aside my cultural heritage, I have published the text I submitted to deserve this below.
H1-702 2018: Writeups
The last two weeks Hackerone have been hosting a CTF as a qualifier for their Las Vegas H1-702 event. The goal was to solve a few Android challenges and a web challenge. To qualifiy for the main event you had to, apart from solving the levels, submit writeups of how you did it. These are the writeups I submitted for my solutions.
SANS Holiday Hack Challange 2017: Writeup
SANS hosted their yearly Holiday Hack Challenge this year as well. It was a fun event, even though I think the story/non-hacking part was better last year. Here is my writeup of the challenges. It's not the most thorough writeup I've done but it outlines my process of solving them.