2023from public repositories
Hcs Writeup 2023
14 challenges with 27 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 liveUncategorised10
The upstream scoreboard did not say, so neither do we.
Koecing
3 official solutionsLend Me Your Signature
3 official solutionsPDeF Hide and Seek
3 official solutionsCheck
2 official solutionsRandom2win
2 official solutionsSnake
2 official solutionsErCeE
1 official solutionFlasksibel
1 official solutionPDeFrienship
1 official solutionRequests
1 official solution
Forensics2
Recover something from a file, a capture, or a disk image - often from a part of it the format says is unused.
Solve it with:File type identifier by magic bytesMagic byte and file signature tablePCAP analyzer for CTF network forensicsEXIF metadata viewerLearn: File forensics and carvingLearn: Network forensics
Analyze the Bad Hacker!
1 official solutionPDeF HnS
1 official solution
Binary 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
Scream
4 official solutionsITSMart
2 official solutions