Summary of the Vulnerability

A newly discovered vulnerability has been identified in AutomationDirect's Click Plus C2-03CPU2 device firmware. This flaw allows authenticated users with low-level access to exploit the KOPR protocol, potentially giving them the ability to read and modify PLC variables without appropriate authorization.

Why This Matters for Server Admins

For system administrators, this vulnerability highlights the continuous threat of authorization bypass in connected devices. Such weaknesses can lead to unauthorized data access, manipulation of critical systems, and significant operational disruptions. It underscores the importance of implementing robust access controls and maintaining up-to-date firmware.

Practical Tips for Mitigation

• Update firmware regularly to address known vulnerabilities.
• Review access controls associated with the KOPR protocol.
• Restrict low-level access permissions whenever possible.
• Deploy a web application firewall (WAF) to monitor and filter traffic.
• Utilize malware detection tools to identify and respond to threats quickly.