BYUCTF 2023


CTF Archive

Welcome to BYUCTF 2023

The second iteration of BYUCTF will be held in May of 2023! The CTF will have beginner- to intermediate-level challenges during the 36-hour period. Categories will include web, crypto, OSINT, forensics, rev, pwn, jail, and misc. There is no team size limit.


Original Date: Fri, 19 May 2023, 17:00 UTC — Sun, 21 May 2023, 05:00 UTC
Original URL: https://cyberjousting.com/
CTFtime Entry: BYUCTF 2023
Original Team: BYU Cyberia
Original Git Repository: https://github.com/BYU-CSA/BYUCTF-2023


Challenges

epcndkohlxfgvenkzcllkoclivdckskvpkddcyoceipkvrcslkdhycbcscwcsc

Spaces and punctuation were removed :)

Flag format - byuctf{the phrase goes here} note there are spaces in the flag, no other punctuation needed.

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


Author: BYU Cyberia

Easy

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


Author: BYU Cyberia

Medium

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


Author: BYU Cyberia

Medium

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


Author: BYU Cyberia

Hard

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


Author: BYU Cyberia

Hard

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


Author: BYU Cyberia

I told my friend that I want to learn how CRC works, so he sent me these three files. Apparently, each line of the text file uses a modified CRC to calculate a checksum. He said that if I can find the hidden message, I'll truly understand CRC...

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


Author: BYU Cyberia

I know you really want the flag, so I'll print it out for you, but only after January 1st, 2024 :)


Author: BYU Cyberia

আপনি געדאַנק оцей byl தி drapeau но este mwy ମେଟା decât quod ik dymuno tú ރަނގަޅު õnne

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


Author: BYU Cyberia

In this James Bond themed CTF challenge, you're tasked with cracking the password of Janus, and evil crime lord, to access his encrypted files containing crucial information about the organization's plans for a devastating attack. Time is of the essence, and the fate of millions rests on your ability to crack the password and stop the impending disaster.

Flag format - byuctf{cracked_password}

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


Author: BYU Cyberia

You did well recovering the first password, but unfortunately as our hackers were accessing their system the enemies IDS spotted them and they were blocked. We know that Janus reset his password, because we intercepted a different password hash on their network. We can expect that he made this one a bit trickier to guess. Can you crack it in time for us to stop him?

Flag format - byuctf{cracked_password}

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


Author: BYU Cyberia


30-Day Scoreboard:

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

Rank Hacker Badges Score