2023found by harvest
WACON 2023 Final
3 challenges with 3 published solutions between them. No writeups were ever filed against this event's listing, so its solutions were found in public repositories instead. Each link is pinned to the commit it was read from.
The event listingBinary exploitation2
Turn a memory-safety bug in a native binary into control of execution. Usually a stack overflow, a format string, or a heap primitive.
Solve it with:ROP gadget finderShellcode assembler and libraryCyclic pattern generator and offset finderFormat string exploit builderLearn: Binary exploitation
1337 Dead
1 official solutionAlso written up in: shift-crops/CTFWriteups
No Mmap
1 official solutionAlso written up in: shift-crops/CTFWriteups
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
Exploit Warmup
1 official solutionAlso written up in: shift-crops/CTFWriteups