UMDCTF 2024
8 challenges with 12 published solutions between them. No writeups were ever filed against this event's listing, so its solutions were found in public repositories instead. Each link is pinned to the commit it was read from.
The event listingUncategorised5
The upstream scoreboard did not say, so neither do we.
Key Recovery
2 official solutionsAlso written up in: a-p-n/CTF-solutions, a-p-n/CTF-solutions
Also written up in: a-p-n/CTF-solutions
Haes 2
1 official solutionAlso written up in: a-p-n/CTF-solutions
Padding Oracle
1 official solutionAlso written up in: a-p-n/CTF-solutions
Possble Futures
1 official solutionAlso written up in: a-p-n/CTF-solutions
Binary exploitation2
Turn a memory-safety bug in a native binary into control of execution. Usually a stack overflow, a format string, or a heap primitive.
Mentat Question
3 official solutionsAlso written up in: nightxade/ctf-writeups, daptheHuman/ctf-writeups, daptheHuman/ctf-writeups
Thevoice
1 official solutionAlso written up in: daptheHuman/ctf-writeups
Cryptography1
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.
Triple Des
2 official solutionsAlso written up in: nightxade/ctf-writeups, a-p-n/CTF-solutions