2020from public repositories
Cscg 2020
24 challenges with 29 published solutions between them. CTFtime has no listing for this event at all, so nothing built on CTFtime can show what it was made of. These writeups were found in public repositories instead. Each link is pinned to the commit it was read from.
Where these writeups liveUncategorised17
The upstream scoreboard did not say, so neither do we.
Polyrun
2 official solutionsRsa Service
2 official solutionsCaptcha
1 official solutionEvmoji
1 official solutionFollow The White Rabbit Cave
1 official solutionFollow The White Rabbit Datamining
1 official solutionLocal Fun Inclusion
1 official solutionReme Decompiled
1 official solutionReme Part 1
1 official solutionReme Part 2
1 official solutionRopnop
1 official solutionSquirrel As A Service
1 official solutionStaywoke Shop
1 official solutionwin eXPerience 2
1 official solutionWokeshop
1 official solutionXmas Shopping Site
1 official solution
Misc6
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
Crypto1
1 official solution
Reverse engineering1
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
Notes
1 official solution