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Facebook CTF Is Now Open Source (facebook.com)
264 points by Liblor on May 11, 2016 | hide | past | web | favorite | 23 comments



Huge props to Gulshan and Javier for launching. This is an incredibly cool platform, and the work they've been doing to introduce people to security through CTFs is hugely important: the only way we're going to build a more secure internet is by training all developers -- not just security engineers -- to understand exactly what it takes to attack an application.

I often meet people who wish they knew more about security, but they feel as though things like cryptography are beyond their grasp. Nothing could be further from the truth, and CTFs are evidence of this fact.

You can always find upcoming CTFs on CTF Time [0]. Give one a try sometime, and you might surprise yourself with how quickly you're able to pick things up. Even if you don't solve any problems, you'll have an absolute blast.

If you ever have questions about getting involved in CTF or you're looking for resources on learning security, don't be afraid to reach out to me. My contact info is on my profile.

[0] https://ctftime.org/


https://i.imgur.com/sx3trYK.png for those who can't open facebook.com for one reason or another

https://github.com/facebook/fbctf

> The Facebook CTF is a platform to host Jeopardy and “King of the Hill” style Capture the Flag competitions.

btw, I wonder if greater integration with lets encrypt is possible perhaps with a flag?

> Be ready to provide the path for your SSL certificate's CSR and key files.


> btw, I wonder if greater integration with lets encrypt is possible perhaps with a flag?

That's a great idea. I can't say when or whether we'll get to it, but I've created a tracking issue: https://github.com/facebook/fbctf/issues/24


Wow Gulshan. Youre the best. Thank you much. (:


Go Gulshan!


Man, that is some nice looking UI.

Having participated in a few CTFs, they are a bit intimidating up front. Having this more visually like a 'game' (which CTF is, really) will garner a lot more attention to get people to dig in and learn.


never heard about this CTF before. Where can I find more info?


You can read a short summary about what a CTF is here (https://ctftime.org/ctf-wtf/), but the best thing to do is to go out and start playing CTFs. https://ctftime.org/ is a great site that lists all upcoming CTFs. Note that a lot of these CTFs are meant for industry professionals, so don't feel discouraged if you find the problems tough. There are also some high school level and college level CTFs you can participate it.



Really cool. Tried to run it, unfortunately the code is broken at the moment- saw this error:

    May 11 19:42:11 fbctf hhvm[12971]: [Wed May 11 19:42:11 2016] [hphp] [12971:7f304b7ff700:6:000001] [] \nFatal error: Class undefined: AsyncMysqlConnectionPool in /var/www/fbctf/src/Db.php on line 19
Very much looking forward to trying it out.


Did you run it on HHVM? That class is implemented in HHVM https://docs.hhvm.com/hack/reference/class/AsyncMysqlConnect...


After doing some more investigation, I'm suspecting you're running this on Ubuntu 16.04, and not 14.04. Is this correct?

HHVM doesn't provide a 16.04 package yet in their dl.hhvm.com repo, so what's happening is that the provision script installs the system version of HHVM, which is 3.11. On 14.04, you'll get the correct version which is 3.13.


Thanks - it was indeed on 16.04. Thought I'd try something new while doing fbctf. Will revert to 14.04 and try again.


If you just want to try it out, I'd recommend using the provided instructions for Vagrant. Everything should work with that VM, and if it doesn't please let me know.

Regarding your actual issue, how did you actually run the provision script, and on what type of server (i.e VM or physical machine)?


I had the opportunity to do two CTFs using this platform during college. Hats off to Gulshan and Javier for releasing this.


Anyone know why they didn't use react or flux or any of the other facebook tool in this? I'm just curious about their decsion making process. I see jquery, d3, and HHVM.


Kudos guys !

It would be great if the you/the community could provide more examples :) (I get that it's a platform to host your own competition, nevertheless more examples wouldn't hurt)


So who's going to make a Docker image of this? :-)



This one is good!!


UI looks like Ufo Enemy Unknown game :)


poor code !


What a Capture The Flag Facebook!!!

When is Death Match???

Well come the the Arena!!!




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