DUCTF 2020
8 challenges with 11 published solutions between them. The writeups for this event were found in public repositories. Each link is pinned to the commit it was read from.
Where these writeups liveUncategorised4
The upstream scoreboard did not say, so neither do we.
Return To Whats Revenge
2 official solutionsAlso written up in: 0x534b/ctf-writeups, m3-welch/writeups
ILoveScoMo
1 official solutionAlso written up in: TechnicPotato/CTF-Writeups
OnTheSpectrum
1 official solutionAlso written up in: TechnicPotato/CTF-Writeups
SpotTheDifference
1 official solutionAlso written up in: TechnicPotato/CTF-Writeups
Binary 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.
My First Echo Server
3 official solutionsAlso written up in: 0x534b/ctf-writeups, m3-welch/writeups, ChaO-0/WriteUps
Return To What
1 official solutionAlso written up in: ChaO-0/WriteUps
Shell This
1 official solutionAlso written up in: ChaO-0/WriteUps
Reverse engineering1
Work out what a compiled program does without its source, then work backwards from the check to the input that passes it.
Added Protection
1 official solutionAlso written up in: ChaO-0/WriteUps