• rainbowbarf (100 points)
• sudoku (100 points)
• helmig (100 + 150 points)
• medina (150 points)

• dumpster_dive (200 points)
• number_of_the_beast (150 points)
• itsadate (3 x 100 points)
• sort_sol (200 points)

• binexp1 (200 points)
• cybermissilecmdr (300 points)

• binexp2 (300 points)
• binexp3 (400 points)
• binexp4 (500 points)
• firmware (500 points)

• Gaining root on Fenix

I would like to say thank you to FE-DDIS for all the hard work they must have put into building these challenges. Even though this is not the first time we've encountered the Femtium architecture, it looks like it has come a long way over the past couple of years, and so has the software written for it. Seeing a whole Unix'y kernel implementation on it as well as a cross-compiling toolchain is amazing. I am in awe of your dedication to this, and thrilled to have been a part of this CTF. I had so much fun with it, and I hope we haven't seen the last of Femtium and Fenix!

Peter Tirsek, 2020-01-20