A web challenge! For 100 points, we we’re asked to log in as admin.

LHC was a short & sweet challenge in Backdoor CTF. It had a nice ‘aha-Erlebnis’ moment.

For this challenge, we had to decode a ton of QR images given to us via a nc connection for 70 points. Sounds like fun!

Backdoor CTF was hosted on a weekday, so we only had the evening to grab as many flags as we could. Here’s how we solved team for 600 points.

r0ops was a reversing challenge, worth only 150 points. Based on the amount of points, I expected it to be relatively easy, but I was in for a ride down the rabbit hole…

The second pwnable I solved for 0ctf on behalf of CTF-Team VulnHub! This one contained My Favorite Vulnerability, guess which one?

0ctf sported a number of challenges and I was happy to grab a few flags. Here’s how we solved flagen.

We’re entering a CTF almost every weekend now, but they’ve been really tough. I did not manage to exploit this challenge in time, but one day after the CTF ended I had an epiphany and got my exploit working. I figured I’d share how I approached this challenge for future reference.

After solving sushi, there were plenty of pwnables left to choose from. Next up was www!

At the very last minute, we decided to join BSides Vancouvers’ CTF. Sushi was a 100 point pwnable.