Winja CTF | Nullcon Goa 2025
10 challenges with 10 published solutions between them. No writeups were ever filed against this event's listing, so its solutions were found in public repositories instead. Each link is pinned to the commit it was read from.
The event listingUncategorised7
The upstream scoreboard did not say, so neither do we.
Dogfinder
1 official solutionAlso written up in: miku4free/writeups
Grandmas Notes
1 official solutionAlso written up in: miku4free/writeups
Grandmas Notes Solver
1 official solutionAlso written up in: miku4free/writeups
Pwgen
1 official solutionAlso written up in: miku4free/writeups
Slasher
1 official solutionAlso written up in: miku4free/writeups
Usbstorage
1 official solutionAlso written up in: miku4free/writeups
Webby
1 official solutionAlso written up in: miku4free/writeups
Misc1
Everything that fits no other box: esolangs, puzzles, scripting exercises, and the jail escapes that have not yet earned their own category.
Atruecryptographer
1 official solutionAlso written up in: R4ptX/CTF-Writeups
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.
FieldTrip
1 official solutionAlso written up in: R4ptX/CTF-Writeups
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.
Fotispy2
1 official solutionAlso written up in: R4ptX/CTF-Writeups