October 21, 2017

This is a writeup of the Indianer challenge from 2017

Sep 30, 2017

This is a short post to (hopefully) answer some of the questions that I have received about my exploit and talk about a few interesting things that I have found.

Sep 25, 2017

We’ve had a few people ask us over the past couple of years how we deploy CTFd and our challenges to serve the more than 2000 teams we have in CSAW CTF Quals, so here’s a quick post explaining how we do it.

Dec 1, 2016

A few weeks ago, we ran the annual CSAW CTF finals round. We’ve released the problems so that anyone can play the problems themselves at home.

Sep 19, 2016

Last weekend, we ran the annual CSAW CTF qualification round. After a wonderful competition, we’ve released all the problems (along with Dockerfiles for deployment) to the public.

Jun 11, 2016

Last year, we had many ctf teams from around the world compete in the annual CSAW CTF. This event is geared toward college undergradates, however it is open to anyone who wishes to play.

Oct 3, 2015

After creating an account on the site and logging in, we notice pretty quickly that trying to set our profile image URL to an invalid URL returns a python error

Oct 3, 2015

After quickly looking through the .pcap, we find two things: a python source file, and a large b64 string (‘2Mk16Sk5iakYx…’)