Senior Security Consultant James Premo created a CTF using concepts of port knocking, network testing through Scapy, and scripting automated testing. Read on for his methodology and how the winner solved the puzzle!
This is a special tutorial write-up authored by Deja Security Consultant Atanas Kirilov, who built the CubCon 2018 badge.
CubCon was a brand-new event at DEF CON, developed with the intent to bring beginner and experienced hackers together and build up the community, as well as to pass along career tips and lessons learned the hard way.
I’m one of the four organizers who ran the event, and the purpose of this post is to illustrate how I helped plan it with the development of a challenge badge.