SpringForwardCTF
18 challenges with 24 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 CTFtimeMisc11
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: juke-33/Write-ups
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Also written up in: juke-33/Write-ups
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Also written up in: juke-33/Write-ups
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Also written up in: juke-33/Write-ups
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Labours Of Hercules 1
1 official solutionAlso written up in: juke-33/Write-ups
Labours Of Hercules 2
1 official solutionAlso written up in: juke-33/Write-ups
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Cryptography3
Recover a plaintext or a key from something that was supposed to protect it. In practice: identify the scheme, find the parameter the author got wrong, exploit it.
Party at the Gardens
1 official solutionAlso written up in: juke-33/Write-ups
Twisted Tongues
1 official solutionAlso written up in: juke-33/Write-ups
Underworld
1 official solutionAlso written up in: juke-33/Write-ups
Web2
Reach data or functionality the application meant to keep from you - through its inputs, its tokens, or its trust in the client.
Into the Gorgons' Den
1 official solutionAlso written up in: juke-33/Write-ups
Socratic Script
1 official solutionAlso written up in: juke-33/Write-ups
Forensics1
Recover something from a file, a capture, or a disk image - often from a part of it the format says is unused.
Cool Songs
1 official solutionAlso written up in: daptheHuman/ctf-writeups
OSINT1
Answer a question about the real world from public sources. The work is pivoting between identifiers, not exploiting anything.
Its A Bull With What
1 official solutionAlso written up in: juke-33/Write-ups