DownUnderCTF 2021


CTF Archive

Welcome to DownUnderCTF 2021

DownUnderCTF is the largest online Australian run Capture The Flag (CTF) competition with over 3000+ registered users and over 1400+ registered teams (2020). Its main goal is to try to up-skill the next generation of potential Cyber Security Professionals and increase the CTF community's size here in Australia. Prizes are only for Australian Secondary or Tertiary school students. However, our CTF is online and open for anyone to play worldwide.

Original Date: Fri, 24 Sept. 2021, 09:00 UTC — Sun, 26 Sept. 2021, 09:00 UTC
Original URL: https://play.duc.tf/
CTFtime Entry: DownUnderCTF 2021 (Online)
Organizing Team: DownUnderCTF
Original Source Repository: https://github.com/DownUnderCTF/Challenges_2021_Public?tab=readme-ov-file


Challenges

Not your typical shell game...

Admin note: the server runs in a restricted environment where some of your favourite files might not exist. If you need a file for your exploit, use a file you know definitely exists (the binary tells you of at least one!)

Author: grub

How the hell did they break into our firewalls? We had strong passwords and everything!

Author: nullableVoid*#7225

What more could you ask for than a program that loads the flag for you? Just answer a few simple questions and the flag is yours!

Author: joseph#8210

What more could you ask for than a program that checks the flag for you? Just guess and check and eventually the flag will be yours!

Use flagCheck to input the flag you get from the challenge to get the actual flag

Author: joseph#8210

AES encryption challenge.

Author: 2keebs


30-Day Scoreboard:

This scoreboard reflects solves for challenges in this module after the module launched in this dojo.

7-Day | 30-Day | All-Time

Rank Hacker Badges Score