2025from public repositories
SHAASTRA CTF 2025
13 challenges with 31 published solutions between them. CTFtime has no listing for this event at all, so nothing built on CTFtime can show what it was made of. These writeups were found in public repositories instead. Each link is pinned to the commit it was read from.
Where these writeups liveUncategorised4
The upstream scoreboard did not say, so neither do we.
BABY ASM
3 official solutionsSUM OF PASSWORDS
3 official solutionsTERRORIST ATTACK
2 official solutionsTHE LAZY STUDENT
2 official solutions
Misc4
Everything that fits no other box: esolangs, puzzles, scripting exercises, and the jail escapes that have not yet earned their own category.
Solve it with:Brainfuck and esolang decoderCipher identifier and automatic decoderRegex tester with match offsets and capture groupsLearn: Recognising encodings
Repoquest
3 official solutionsStalking
3 official solutionsThe Phantom Network Intruder
3 official solutionsPackets
1 official solution
Forensics3
Recover something from a file, a capture, or a disk image - often from a part of it the format says is unused.
Solve it with:File type identifier by magic bytesMagic byte and file signature tablePCAP analyzer for CTF network forensicsEXIF metadata viewerLearn: File forensics and carvingLearn: Network forensics
Hitor'S Secret
2 official solutionsScan Surprise
2 official solutionsBit by Bit
1 official solution
Web2
Reach data or functionality the application meant to keep from you - through its inputs, its tokens, or its trust in the client.
Solve it with:JWT decoder and signature verifierJWT alg=none bypass generatorWeb attack payload catalogJWT secret brute forceLearn: Web attacks and session tokens
Bocchi's Site
3 official solutionsI DON'T KNOW
3 official solutions