2019from the authors’ own sites
Picoctf Engineering Vault Doors 2019
1 challenge with 1 published solution between them. The writeups for this event were found on the authors’ own sites.
Where these writeups liveReverse 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
Engineering
1 official solutionAlso written up in: nuculabs.dev