VolgaCTF 2023 Qualifier
8 challenges with 9 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 CTFtimeWeb3
Reach data or functionality the application meant to keep from you - through its inputs, its tokens, or its trust in the client.
- js
- web
- aes
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
- injection
- php
- comand
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
- web
- injection
- sqlmap
- sqli
- login
- bypass
Same technique in picoCTF: Irish-Name-Repo 3, More SQLi, Secret Box
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.
- crypto
- math
Same technique in picoCTF: StegoRSA, Timestamped Secrets, AES-ABC
- linear-cryptanalysis
- crypto
Same technique in picoCTF: StegoRSA, Timestamped Secrets, AES-ABC
Reverse engineering1
Work out what a compiled program does without its source, then work backwards from the check to the input that passes it.
- re
- cuda
- gpu
- reverse
Same technique in picoCTF: WinAntiDbg0x100, WinAntiDbg0x200, WinAntiDbg0x300
Steganography1
Find the payload hidden inside a carrier that looks ordinary. Bit planes, appended data, metadata, and audio spectrograms.
- misc
- stego
Same technique in picoCTF: FindAndOpen, StegoRSA, Glory of the Garden
Misc1
Everything that fits no other box: esolangs, puzzles, scripting exercises, and the jail escapes that have not yet earned their own category.
Same technique in picoCTF: Permissions, Specialer, Codebook