MetaRed International CTF 2021 - 4th STAGE
9 challenges with 13 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: lockdown-horses, Guessing Game 1, Bizz Fuzz
- rop
- pwn
Same technique in picoCTF: lockdown-horses, Guessing Game 1, vr-school
- ropchain
- pwn
- rop
Same technique in picoCTF: lockdown-horses, Guessing Game 1, vr-school
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: StegoRSA, Glory of the Garden, Investigative Reversing 0
Noise
1 writeup- stego
Same technique in picoCTF: StegoRSA, Glory of the Garden, Investigative Reversing 0
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: PW Crack 2, Permissions, Specialer
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Uncategorised2
The upstream scoreboard did not say, so neither do we.
Hackers Picture Misc
2 official solutionsAlso written up in: 0xcyberpj/My-Writeup, 0xcyberpj/My-Writeup
Money Road Misc
1 official solutionAlso written up in: 0xcyberpj/My-Writeup