X-MAS CTF 2021 is HTsP's fourth chapter of X-MAS CTF. We welcome both beginners and experienced players alike.
We hope that you will have a great time and we wish you a Merry Christmas!

This is the first weekend of the contest (10-12 December). The CTF will be divided in 2 weekends (the second weekend being 17-19 December). The SECOND WEEKEND's page is here: https://ctftime.org/event/1525 .

There will also be plenty of "long challenges" to solve during the week between the two weekends! The scoreboard will be uploaded on the second weekend's page.

Rules:
- Attacking the platform is strictly prohibited and will get you disqualified.
- The flag format is X-MAS{1337_Str1ng} unless specified otherwise.
- Brute-forcing the flag will not get you anywhere except on the naughty list.
- Any questions regarding challenges or the platform should be asked on our discord server. (Make sure you aren't sharing anything important related to a challenge!)

Join the Discord channel!:
https://discord.gg/GmcN7KzVut

follow our twitter to be up to date
@HTsPCTF

Sponsored by HackTheBox!

Top #3: 1 Month Prolab of choice + 500 Academy Cubes
#4/#5: 1 Month VIP + 500 Academy Cubes
25 teams from top 100 (top 5 and 20 teams randomly chosen below them): 1 Month VIP