The vulnerabilities we uncovered by fuzzing µC/OS protocol stacks

Hunting for vulnerabilities in industrial environments has become increasingly important as industrial control systems and critical infrastructure face threats from state-sponsored actors and ransomware groups hoping to cash out on million-dollar payments. Fuzzing has long been one of our favorit...

Fuzzing µC/OS protocol stacks, Part 3: TCP/IP server fuzzing, implementing a TAP driver

This is the final post in the three-part series that details techniques I used to fuzz two µC/OS protocol stacks: µC/TCP-IP and µC/HTTP-server. The first post highlighted code modifications necessary for developing a fuzzing harness tailored for the µC/HTTP-server. The second discussed a techniqu...