Hayyim CTF 2022
8 challenges with 20 published community solutions between them. Solution links go to CTFtime’s task page, which aggregates every writeup for a challenge - individual blog posts rot, the aggregator does not.
Full task list on CTFtimeBinary exploitation4
Turn a memory-safety bug in a native binary into control of execution. Usually a stack overflow, a format string, or a heap primitive.
Also written up in: nobodyisnobody/write-ups, datajerk/ctf-write-ups, datajerk/ctf-write-ups, datajerk/ctf-write-ups, pivik271/ctf-writeups
- rop
- pwn
- bof
Same technique in picoCTF: lockdown-horses, Guessing Game 1, stack cache
- bof
- pwn
- rop
Same technique in picoCTF: lockdown-horses, Guessing Game 1, stack cache
Working.Exploit
2 official solutionsAlso written up in: nobodyisnobody/write-ups, nobodyisnobody/write-ups
- antivirus
- pwn
Same technique in picoCTF: lockdown-horses, Guessing Game 1, Bizz Fuzz
Uncategorised2
The upstream scoreboard did not say, so neither do we.
Cenarius
2 official solutionsAlso written up in: jt00000/ctf.writeup, pivik271/ctf-writeups
Memng
1 official solutionAlso written up in: jt00000/ctf.writeup
Reverse engineering1
Work out what a compiled program does without its source, then work backwards from the check to the input that passes it.
- reverse
Same technique in picoCTF: Checkpass, WinAntiDbg0x100, WinAntiDbg0x200
Misc1
Everything that fits no other box: esolangs, puzzles, scripting exercises, and the jail escapes that have not yet earned their own category.
Also written up in: ipwning/CTF, ipwning/CTF, ipwning/CTF