The CTF is over! We will like to thank everyone participating in this contest and congratulate Eat Sleep Pwn Repeat with their victory! Also another big thanks to our sponsors who made this CTF possible!

The challenge servers will remain open for a while and you can still compete and test your skills in the junior CTF.
If there is any news during the CTF we will post it here, on irc://irc.freenode.net/sha2017ctf and on Twitter.
A big thanks to our sponsors who make this CTF possible!

  • The SHA2017 CTF takes place from Saturday the 5th of August 2017 12:00 (CEST) till Monday the 7th of August 2017 0:00. A total of 36 hours.
  • The SHA2017 CTF Teaser Round took place Saturday the 10th of June 14:00 - 22:00 (CEST).
  • The SHA2017 CTF Teaser Round was won by Eat, Sleep, Pwn, Repeat
  • All flags will have the layout of flag{MD5} and are case insensitive.
  • During the CTF the registration page will stay open for any teams who want to join after the CTF started.
  • SHA2017 CTF is a Jeopardy style CTF, there is no need to set up VPN environment.
  • There is no limit in the number of people participating per team. You only need one registration per team.
  • Sharing flags or solutions is prohibited. This action is subject to disqualification.
  • Attacking machines other than designated SHA2017 CTF machines is strictly prohibited.
  • If you are sure that you have the valid flag but the system rejects it, please contact us.
  • If you find any bug in the CTF environment, please report it to us.
  • If you are not sure if something is a violation of the rules, ask us!
  • SHA2017 CTF will not contain any bonus points.
  • Brute forcing against the SHA2017 CTF infra is not allowed.
  • Using webscanners such as Nikto, Nessus or Dirbuster will not help you solve the challenges.
  • If any cracking is needed this can be done well within an hour on a standard PC.
  • There will be no Trivia questions or 4 hour Google recon sessions.
  • There will be no hidden challenges.
  • Contact user sha2017ctf on IRC, email ctf@sha2017.org or DM us on Twitter if you have questions.
  • The IRC channel is #sha2017ctf on freenode
  • Behave
  • No trolling please
  • Please do not post any spoilers / flags
  • Please do not post any ASCII art / useless links / memes
  • Please do not request help, this is a CTF, you compete against the other teams, no one will get help
  • For questions you can contact user sha2017ctf on freenode
  • Only the SHA2017 CTF organisation will have +o, so you can recognize them
  • Although we are Dutch, the language spoken on IRC will be English

We thank our sponsors: