The vulnerabilities we uncovered by fuzzing µC/OS protocol stacks
Summary: Cisco Talos researchers built a custom fuzzer after Weston Embedded released the full µC/OS protocol stack source code in 2020, and found multiple vulnerabilities in the real-time operating system used in resource-constrained embedded systems such as industrial control systems. The flaws could let an adversary cause a denial of service or execute arbitrary code, and Talos is publishing a three-part series on building the fuzzer and using it against two µC/OS protocol stacks.
Why it matters: µC/OS runs in industrial control systems that state-sponsored actors and ransomware groups are already targeting for million-dollar payouts, and these vulnerabilities can hand an attacker code execution or a denial of service inside that environment.
Read the original at Cisco Talos ↗
- Topics
- OT / ICS & Critical Infrastructure
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