Finding the Balance Between Guidance and Independence in Cybersecurity Exercises

In order to accomplish cyber security tasks, one needs to know how to analyze complex data and when and how to use tools. Many hands-on exercises for cybersecurity courses have been developed to teach these skills. There is a spectrum of ways that these exercises can be taught. On one end of the spectrum are prescriptive exercises, in which students follow step-bystep instructions to run scripted exploits, perform penetration testing, do security audits, etc. On the other end of the spectrum are open-ended exercises and capture-theflag activities, where little guidance is given on how to proceed. This paper reports on our experience with trying to find a balance between these extremes in the context of one of the suite of cybersecurity exercises that we have developed in the EDURange framework1. The particular exercise that we present teaches students about dynamic analysis of binaries using strace. We have found that students are most successful in these exercises when they are given the right amount of prerequisite knowledge and guidance as well as some opportunity to find creative solutions. Our scenarios are specifically designed to develop analysis skills and the security mindset in students and to complement the theoretical aspects of the discipline and develop practical skills.