SANS Holiday Hack Challenge writeups

Writeup: ‘Jack’s Back! featuring KringleCon 4: Calling Birds (2021) Writeup: ‘Zat You, Santa Claus? featuring KringleCon 3: French Hens (2020) Writeup: KringleCon, the first-ever cyber security conference hosted by Santa and his elves (2018) Writeup: Wintered: The untold story of the Elves of the North Pole (2017) Writeup:  Santa’s Business Card (2016) Writeup: A Gnome […]

31c3 CTF – 5CHAN Write-up

This is my write-up for one of the easier challenges in the 31c3 CTF: 5CHAN. The information to get started the challenge with the challenge was: When visiting the URL, we are presented with an nice image-board. Fuzzing around a little with the URL-parameters shows that this board is clearly vulnerable to SQLi:′ The […]