Securinets CTF Quals 2020
20 challenges with 32 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 CTFtimeReverse engineering7
Work out what a compiled program does without its source, then work backwards from the check to the input that passes it.
- rev
- pwn
- hash
Same technique in picoCTF: Tap into Hash, WinAntiDbg0x100, WinAntiDbg0x200
- rev
Same technique in picoCTF: WinAntiDbg0x100, WinAntiDbg0x200, WinAntiDbg0x300
- rev
Same technique in picoCTF: WinAntiDbg0x100, WinAntiDbg0x200, WinAntiDbg0x300
- rev
Same technique in picoCTF: WinAntiDbg0x100, WinAntiDbg0x200, WinAntiDbg0x300
- rev
Same technique in picoCTF: WinAntiDbg0x100, WinAntiDbg0x200, WinAntiDbg0x300
- reverse
- engineering
Same technique in picoCTF: WinAntiDbg0x100, WinAntiDbg0x200, WinAntiDbg0x300
- rev
Same technique in picoCTF: WinAntiDbg0x100, WinAntiDbg0x200, WinAntiDbg0x300
Misc4
Everything that fits no other box: esolangs, puzzles, scripting exercises, and the jail escapes that have not yet earned their own category.
- misc
Same technique in picoCTF: Permissions, Specialer, Codebook
- misc
Same technique in picoCTF: Permissions, Specialer, Codebook
- misc
Same technique in picoCTF: Permissions, Specialer, Codebook
- misc
Same technique in picoCTF: Permissions, Specialer, Codebook
Cryptography3
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
- elgamal
Same technique in picoCTF: StegoRSA, Timestamped Secrets, AES-ABC
- crypto
Same technique in picoCTF: StegoRSA, Timestamped Secrets, AES-ABC
- cryptography-paillier
Same technique in picoCTF: StegoRSA, Timestamped Secrets, AES-ABC
Web3
Reach data or functionality the application meant to keep from you - through its inputs, its tokens, or its trust in the client.
- sqli
Same technique in picoCTF: Irish-Name-Repo 3, More SQLi, Secret Box
- sqli
- web
Same technique in picoCTF: Irish-Name-Repo 3, More SQLi, Secret Box
- web
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
Forensics2
Recover something from a file, a capture, or a disk image - often from a part of it the format says is unused.
- forensics
- volatility
- memory_dump
Same technique in picoCTF: FindAndOpen, c0rrupt, extensions
- forensics
- memory
Same technique in picoCTF: FindAndOpen, c0rrupt, extensions
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: Permissions, Specialer, Codebook