2022from public repositories
Flaghunt 2022
4 challenges with 6 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 engineering2
Work out what a compiled program does without its source, then work backwards from the check to the input that passes it.
Solve it with:Strings extractor for binaries and blobsWebAssembly disassemblerJava .class disassemblerPython .pyc bytecode disassemblerLearn: Binary exploitation
Weird Code
2 official solutionsAlso written up in: gr007-40/writeups, gr007-40/writeups
Also written up in: gr007-40/writeups
Misc1
Everything that fits no other box: esolangs, puzzles, scripting exercises, and the jail escapes that have not yet earned their own category.
Solve it with:Brainfuck and esolang decoderCipher identifier and automatic decoderRegex tester with match offsets and capture groupsLearn: Recognising encodings
Guessing Game
2 official solutionsAlso written up in: IrfanNafiz/ctf-writeups, IrfanNafiz/ctf-writeups
Uncategorised1
The upstream scoreboard did not say, so neither do we.
Math Is Fun
1 official solutionAlso written up in: peace-ranger/CTF-WriteUps