MetaRed International CTF 2021 - 4th STAGE
7 challenges with 10 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 CTFtimeBinary exploitation3
Turn a memory-safety bug in a native binary into control of execution. Usually a stack overflow, a format string, or a heap primitive.
- pwn
Same technique in picoCTF: Guessing Game 1, x-sixty-what, format string 3
- rop
- pwn
Same technique in picoCTF: Guessing Game 1, x-sixty-what, Binary Gauntlet 3
- ropchain
- pwn
- rop
Same technique in picoCTF: Guessing Game 1, x-sixty-what, Binary Gauntlet 3
Steganography2
Find the payload hidden inside a carrier that looks ordinary. Bit planes, appended data, metadata, and audio spectrograms.
- stegonography
- stego
Same technique in picoCTF: FindAndOpen, StegoRSA, Glory of the Garden
Noise
1 writeup- stego
Same technique in picoCTF: FindAndOpen, StegoRSA, Glory of the Garden
Misc2
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
Same technique in picoCTF: Permissions, Specialer, Codebook