Square CTF 2022
23 challenges with 36 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 CTFtimeUncategorised14
The upstream scoreboard did not say, so neither do we.
Script
2 official solutionsAlso written up in: Re-Adventures/CTF-Writeups, DaBaddest/CTF-Writeups
Alex Hanlon
1 official solutionAlso written up in: SlushyGod/writeups
Developershubris
1 official solutionAlso written up in: Arc-blroth/ctf-writeups
Ez Pwn 2
1 official solutionAlso written up in: SlushyGod/writeups
Also written up in: ret2school/ctf
Also written up in: ret2school/ctf
Also written up in: flaming-snowman/ctf-writeups
Going In Blind
1 official solutionAlso written up in: pkemkes/ctf-writeups
Its Right There
1 official solutionAlso written up in: AVDestroyer/CTF-Writeups
Keygen
1 official solutionAlso written up in: flaming-snowman/ctf-writeups
Macho Binary
1 official solutionAlso written up in: SlushyGod/writeups
Printer
1 official solutionAlso written up in: flaming-snowman/ctf-writeups
Pwncrypto
1 official solutionAlso written up in: ret2school/ctf
ROPlikeHard
1 official solutionAlso written up in: ret2school/ctf
Misc6
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: LeonGurin/My-CTF-Writeups, alekszivko/CTF-Writeups
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Also written up in: pkemkes/ctf-writeups
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Also written up in: alekszivko/CTF-Writeups
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Same technique in picoCTF: Reentrance, Smart_Overflow, Access_Control
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Reverse engineering2
Work out what a compiled program does without its source, then work backwards from the check to the input that passes it.
Also written up in: matth.dmz42.org
Same technique in picoCTF: Checkpass, WinAntiDbg0x100, WinAntiDbg0x200
Printer.Go
1 official solutionAlso written up in: maulvialf/CTF-Challs-Archive
Binary exploitation1
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: bl4de/ctf, LeonGurin/My-CTF-Writeups, SlushyGod/writeups
Same technique in picoCTF: lockdown-horses, Guessing Game 1, Bizz Fuzz