Guide on Embedded Systems Security for CISSP
Embedded systems are specialized computer systems that are part of a larger system or machine. They often perform specific tasks and may have Real Time Operating Systems (RTOS). Embedded Systems Security is the branch of cybersecurity that deals with securing these embedded systems.
Why it is important:
With the advent of IoT devices which heavily rely on embedded systems, the security of these systems is crucial. Security vulnerabilities can have serious consequences like data theft, device malfunction, or otherwise.
Key Concepts: These typically built with limited resources and hence can't accommodate traditional security tools or measures. Hence making them a potential weak link in a cyber-secure environment.
Working:
Security in embedded systems can be achieved by various methods like - Secure booting, Trusted software updates, Device Authentication, Data Encryption, Firewalls, Intrusion detection systems, securing web interfaces etc.
Exam tips:
- Understand the unique challenges in securing embedded systems due to their resource constraints.
- Familiarize with security measures specially designed for such systems like secure booting, trusted updates etc.
- Understand examples of embedded systems and their typical vulnerabilities.
- Pay particular attention to IoT devices and their security - it's an area of increasing interest and relevance.