2024no writeups on CTFtime
Grey Cat The Flag 2024 Qualifiers
10 challenges with 13 published solutions between them. CTFtime lists this event but has no writeups filed against it, so it is absent from the index CTFtime feeds. These were found in public repositories instead. Each link is pinned to the commit it was read from.
The event on CTFtimeUncategorised6
The upstream scoreboard did not say, so neither do we.
Baby Web
2 official solutionsGreyctf Survey
2 official solutionsThe Motorala
2 official solutionsBaby Goods
1 official solutionBeautiful Styles
1 official solutionMarkdown Parser
1 official solution
Misc2
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
All About Timing
1 official solutionCashhat The Ripper
1 official solution
Reverse 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
Cooking Mama
1 official solutionMazeware
1 official solution