🔥2025, we’re coming in HOT! 🔥 Block out July 18th-20th, 2025 – it’s going to be an absolute explosion of fun! 🎉🚀

DownUnderCTF is the largest online Australia and Aotearoa (NZ) run Capture The Flag (CTF) competition. This CTF aims to up-skill the next generation of Cyber Security Professionals and to grow the CTF community in the AUNZ region. DownUnderCTF is a completely free online event open to all participants around the world. Prize eligibility is restricted to Australian and Aotearoa (NZ) Secondary or Tertiary school students to encourage collaboration and healthy competitive spirit between the nations whilst also promoting cybersecurity skills to students.

With over 4600+ players and 2100+ teams in 2024 from complete beginners to seasoned CTF veterans, our diverse community is strong and we hope you can join us for 2025!

Show your interest here! https://ctftime.org/event/2669

#cybersecurity #ctf #infosec #ductf

Not my best result, but I really love this certificate, I'd love to get more from other CTFs.

Thanks for the organisers

#DUCTF #ductf2024 #ctf

Get ready to level up your CTF experience with our groundbreaking new category - Hardware! ✨ For the first time ever, you'll get to remotely interact with custom-designed and built, on-site hardware!

Don't miss out - only 3 days left to go! Follow our socials for the latest updates and get hyped! 🔥🔥

Register now at http://play.duc.tf

#cybersecurity #CTF #infosec #ductf

⚡ Less than 1 week away! ⚡

Behold! From the depths of darkness 😈, an insidious bug has emerged, ensnaring our beloved flightless birds in its vile grip! The time has come to rally together 🚩, champions of justice! ✊ Join us from the 5th to the 7th of July and heed the call to rescue our feathered friends!

Register now at https://play.duc.tf and let the battle for freedom begin!

#cybersecurity #CTF #infosec #ductf

🏆 Unveiling the prizes for this year's champions! 🏆

Gear up, folks! We have prizes for the top student teams across multiple categories! 🎉 Plus, don't miss out on the coveted awards for the slickest write-ups and the dankest memes — open to talent from every corner of the globe! 🌍💥

Visit downunderctf.com/prizes for more details!

See y'all soon ~ 5-7th July 2024!

#cybersecurity #CTF #infosec #ductf

⚡Less than 2 weeks away!⚡

Our flightless birds have been captured 😨 and we need your help! 💪

Strike out your 5-7th July and join us in exploring the treacherous environment down under!

Sound on 🔉

#cybersecurity #CTF #infosec #ductf

⏰ Tick-tock, time is ticking away towards DUCTF 5.0! Less than three weeks until launch! Looking forward to seeing everyone soon!

#cybersecurity #CTF #infosec #ductf

⚠ WARNING! Detected unstable levels of energy in the atmosphere! ⚠

What happened to our flightless birds? Time is drawing closer! Just less than a month to DUCTF 5.0 this 5-7th July!

#cybersecurity #CTF #infosec #ductf

Randomly decided to play DuCTF this weekend because I randomly noticed they had two Ruby challenges. The first one was moderately hard and pretty clever. The second one was hard with a capital H even for me a Rubyist; press F in the chat for the non-Rubyists because they had almost no chance of figuring it out. Will post a writeup next week describing my thought process, pitfalls, and protips.

I did get to use ronin on a few challenges. The ronin http --shell URL command came in handy for the web challenges that required sending special requests to a web server; unlike a web browser or curl, ronin http will not try to decode your pre-escaped path or query-params. For the network challenges that required writing some automated script, I got to use ronin/support/io_shell which adds a .shell method to all IO objects, so you can just do socket.shell in the middle or at the end of your Ruby script, and jump into an interactive netcat-like shell. Very handy.
#DUCTF #ductf2023 #ctf #ruby #ronin #roninrb