NahamCon CTF 2025
23 challenges with 27 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 CTFtimeMisc16
Everything that fits no other box: esolangs, puzzles, scripting exercises, and the jail escapes that have not yet earned their own category.
Advanced Screening
1 writeupSame technique in picoCTF: Permissions, Specialer, Codebook
- miscellaneous
Same technique in picoCTF: Permissions, Specialer, Codebook
Method in Madness
1 writeupSame technique in picoCTF: Permissions, Specialer, Codebook
My First CTF
1 writeupSame technique in picoCTF: Permissions, Specialer, Codebook
My Second CTF
1 writeupSame technique in picoCTF: Permissions, Specialer, Codebook
My Third CTF
1 writeupSame technique in picoCTF: Permissions, Specialer, Codebook
- warmups
Same technique in picoCTF: Permissions, Specialer, Codebook
- warmups
Same technique in picoCTF: Permissions, Specialer, Codebook
- warmups
Same technique in picoCTF: Permissions, Specialer, Codebook
- miscellaneous
Same technique in picoCTF: Permissions, Specialer, Codebook
- miscellaneous
Same technique in picoCTF: Permissions, Specialer, Codebook
- devops
Same technique in picoCTF: Permissions, Specialer, Codebook
- miscellaneous
Same technique in picoCTF: Permissions, Specialer, Codebook
The Mission
1 writeupSame technique in picoCTF: Permissions, Specialer, Codebook
- warmups
Same technique in picoCTF: Permissions, Specialer, Codebook
Verification Clarification
1 writeupSame technique in picoCTF: Permissions, Specialer, Codebook
Web4
Reach data or functionality the application meant to keep from you - through its inputs, its tokens, or its trust in the client.
- web
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
- web
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
- web
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
- web
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
OSINT2
Answer a question about the real world from public sources. The work is pivoting between identifiers, not exploiting anything.
- osint
Same technique in picoCTF: Permissions, Specialer, Codebook
- osint
Same technique in picoCTF: Permissions, Specialer, Codebook
Cryptography1
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.
- cryptography
Same technique in picoCTF: StegoRSA, Timestamped Secrets, AES-ABC