VishwaCTF 2023
41 challenges with 84 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 CTFtimeMisc32
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: daffainfo/ctf-writeup
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Also written up in: daffainfo/ctf-writeup
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Also written up in: daffainfo/ctf-writeup, banuaa/CTF-Writeup
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
Also written up in: daffainfo/ctf-writeup
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Also written up in: daffainfo/ctf-writeup
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Also written up in: daffainfo/ctf-writeup
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Also written up in: daffainfo/ctf-writeup
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
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
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
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
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
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
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
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
Reverse engineering5
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: ghostinthefingers/CTF-Writeups, ghostinthefingers/CTF-Writeups, banuaa/CTF-Writeup
- z3
- re
Same technique in picoCTF: Checkpass, WinAntiDbg0x100, WinAntiDbg0x200
Same technique in picoCTF: Checkpass, WinAntiDbg0x100, WinAntiDbg0x200
Phi Calculator
1 official solutionAlso written up in: banuaa/CTF-Writeup
Same technique in picoCTF: Checkpass, WinAntiDbg0x100, WinAntiDbg0x200
Same technique in picoCTF: Checkpass, WinAntiDbg0x100, WinAntiDbg0x200
Cryptography2
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.
Also written up in: daffainfo/ctf-writeup
Same technique in picoCTF: It's Not My Fault 2, StegoRSA, AES-ABC
Same technique in picoCTF: Custom encryption, XtraORdinary, It's Not My Fault 2
OSINT1
Answer a question about the real world from public sources. The work is pivoting between identifiers, not exploiting anything.
- osint
Same technique in picoCTF: CVE-XXXX-XXXX
Uncategorised1
The upstream scoreboard did not say, so neither do we.
Fr1endship Forever
1 official solutionAlso written up in: daffainfo/ctf-writeup