Critical Security Hole Can Knock Smart Meters Offline

Critical security vulnerabilities in Schneider Electric smart meters could allow an attacker a path to remote code execution (RCE), or to reboot the meter causing a denial-of-service (DoS) condition on the device.

Schneider Electric’s PowerLogic ION/PM smart meter product line, like other smart meters, is used by consumers in their homes, but also by utility companies that deploy these meters in order to monitor and bill customers for their services. They’re also used by industrial companies, data centers and healthcare companies.

Two vulnerabilities were disclosed this week, present in numerous versions of the products. According to Claroty, which originally found the flaws, they stem from the fact that the smart meters communicate using a proprietary ION protocol over TCP port 7700, and packets received by the device are parsed by a state machine function.

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Source: ThreatPost