EuphoriaCTF

File:Olmstead.png

EuphoriaCTF 2024

Welcome to the 2024 Edition of the Euphoria CTF! Beerocracy, Shadytel, JSON & Bliss, and Fuzzing IO have been working hard to bring you a new unique experience this year unlike any other. Extra special credit to JSON & Bliss for the amazing contribution of the multimedia elements in the challenges!

How to Play

This year there are three short CTF tracks focusing on different domains of security expertise. The tracks are independent and will have a prize for the first person or team to solve a track. There are also interactions across tracks. You must complete the ShadyBank challenge to fully complete the Olmstead Challenge. You will encounter web, cryptography, rf, and remote memory corruption if you participate in all tracks.

The ShadyBank Challenge/Response

Go to ShadyTel Experience Center to register your Shady Tag.

The first challenge is on the badge.

Don't give up, don't let me down.

Don't tell me you're too blind to see

Inside, we both know what's been going on

We know the game and we're gonna play it!

The Olmstead Broadcasts Challenge Set

There must be something in the air,

the tale of Roy and Elsie Olmstead

is on everyone's lips. Murmurs of an

illicit moonshine operation in this era

of prohibition. You can hear it if you

listen closely and open your eyes!

Audio:

http://undercurrents.io/euphoria/auntie-vivian-radio-broadcast.aif

http://undercurrents.io/euphoria/fascinatin-rhythm.aif

http://undercurrents.io/euphoria/numbers-station.aif

Video:

http://undercurrents.io/euphoria/olmsead-video-part1.mp4 (not encrypted)

http://undercurrents.io/euphoria/olmsead-video-part1.mp4 (encrypted)

The Unbroken Pwnable

Unbeaten last Toorcamp, this track only

has a single exploit challenge you can

download it from the wiki and to submit

a solution, email richinseattle@gmail.com

with a tarball containing a Dockerfile to

repro your solution

- http://undercurrents.io/euphoria/sshd5

The Robot

Will the robot come alive? I think so. Come talk with it and see if you can extract the key.

FAQ

Who can participate?

Any ToorCamp attendee is eligible to participate. The game will be restricted to onsite attendees only. The game has been designed to allow entry level players to make some progress and enjoy the game while more advanced players will eventually find higher difficulty challenge in the pwnable track.

How do I participate?

The competition will begin Thurs, Jun 26 12:00 PM and end Sat, Jun 27 5:00 PM. Challenges will result in acquiring a set of keys, there will be a website to submit keys that you discover as you play the game. Winners will be announced and prizes awarded in the Prime Dome before closing remarks on Saturday. The game will stay live until Sunday morning for people still wishing to solve challenges for fun.