UMass CTF 2022

4/3 - 4/5, 2022

• UMassCTF '22 Challenges are released at UMassCybersecurity/UMassCTF-2022-challenges
• CTF archived at CTF TIME Event
• Website: https://ctf.umasscybersec.org/
• Team's page: https://ctf.umasscybersec.org/teams/372

Solved challenges

• pwn/zip_parser (500)
• misc/tino (489)
• misc/python_ijele (427)
• misc/quickmaths (248)
• misc/discord (50)

Solved after the competition

• misc/jeopardyV1
  • 5 min after the competition ends. We would be the 3rd place on UMass scoreboard with literally 5 more min.
• crypto/hatmash

Writeups

• pwn/zip_parser
• crypto/hatmash

Team: Hide on bush

• garywei944
• Yur1clone
• yicao928

We ranked 37 / 314 on the overall scoreboard, the 4th place on UMass scoreboard.

Directory layout for challenges

• src: source code and server setup
• static: challenge files released to competitors during CTF
• archived: output / temp files I generated during competition
• workspace: demos / trial & error
• images: images for writeup
• README.md: writeup

The solution is put directly under each challenge directory and should be ready to go.

UMass scoreboard