IFEST 2021
8 challenges with 11 published solutions between them. The writeups for this event were found in public repositories. Each link is pinned to the commit it was read from.
Where these writeups liveReverse engineering5
Work out what a compiled program does without its source, then work backwards from the check to the input that passes it.
Lumine'S License
2 official solutionsAlso written up in: nyxsorcerer/writeups-ctf, nyxsorcerer/writeups-ctf
Lumine'S License Revenge
2 official solutionsAlso written up in: nyxsorcerer/writeups-ctf, nyxsorcerer/writeups-ctf
Application
1 official solutionAlso written up in: nyxsorcerer/writeups-ctf
Check
1 official solutionAlso written up in: nyxsorcerer/writeups-ctf
Liblicense
1 official solutionAlso written up in: nyxsorcerer/writeups-ctf
Web2
Reach data or functionality the application meant to keep from you - through its inputs, its tokens, or its trust in the client.
Adventures Guild
2 official solutionsAlso written up in: nyxsorcerer/writeups-ctf, nyxsorcerer/writeups-ctf
Server
1 official solutionAlso written up in: nyxsorcerer/writeups-ctf
Misc1
Everything that fits no other box: esolangs, puzzles, scripting exercises, and the jail escapes that have not yet earned their own category.
Bonkjail
1 official solutionAlso written up in: nyxsorcerer/writeups-ctf