For the last level I solved it locally but in the server I didn't get the '3' port difference for the first password chunk (at lest in the first rounds) so I made it more complicated by getting as candidates the small port differences and running those again and culling again, got the 1st chunk of my flag before running out of time... oh well.
Stripe people made an excellent job, I really enjoyed the challenge. They were blogging than the set up took only a couple of man-weeks, given the success of this CTF I think there may be a start-up idea here: to use similar challenges for programming and/or security training/job interviews.
I'll take someone who solved by himself/herself this ctf over a CISSP in most situations any time (I'm a CISSP myself).
For the last level I solved it locally but in the server I didn't get the '3' port difference for the first password chunk (at lest in the first rounds) so I made it more complicated by getting as candidates the small port differences and running those again and culling again, got the 1st chunk of my flag before running out of time... oh well.
Stripe people made an excellent job, I really enjoyed the challenge. They were blogging than the set up took only a couple of man-weeks, given the success of this CTF I think there may be a start-up idea here: to use similar challenges for programming and/or security training/job interviews.
I'll take someone who solved by himself/herself this ctf over a CISSP in most situations any time (I'm a CISSP myself).