Kernel

Challenge Name : Oboe Number of solves : 16 This post is a writeup of a challenge of last year DiceCTF, that I recently solved. Oboe was a Linux Kernel challenge, during the CTF it was solved by 16 people. It was a really nice challenge so I thought I’d make a writeup of it. You can find the files of the challenge here (note: the bzImage to use with run is bzImage.backup and the other bzImage need kernel source in the folder used). ...

Challenge Name : Netsec Difficulty : ★★★ Number of solves : 10 This post is in my series of writeup on FCSC 2026, since it’s been long since I did the competition I restarted doing the challenges recently, as well as the 2 I didn’t solve during the competition. Netsec was a 3 Star challenge but there was 4 challenges less solved than this one. You can find the files of the challenge here ...