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ICSA-21-082-02  ·  Published 2021-03-23  ·  View on CISA ICS-CERT ↗

GE MU320E

CVSS 9.8 CRITICAL

Risk Summary

Successful exploitation of these vulnerabilities could allow an attacker to escalate unnecessary privileges and use hard-coded credentials to take control of the device.

Remediations

  • GE recommends MU320E users upgrade to firmware v04A00.1 or higher to mitigate these vulnerabilities.
  • Instructions on how to upgrade the MU320E firmware and verify its installation are available in the product user's manual.
  • See GE publication number: GES-2021-003 for more information.
  • GE recommends MU320E devices be protected using network defense-in-depth practices. This includes, but is not limited to, placing MU320E devices inside the control system network security perimeter, and having access controls, monitoring (such as an Intrusion Detection System), and other mitigating technologies in place. Many electric utilities have deployed cyber security solutions in accordance with the NERC-CIP implementation requirements. Please refer to the product secure deployment guide.

Affected Vendors

General Electric (GE)

Affected Products (1)

General Electric (GE) · MU320E All firmware < 04A00.1

Affected Sectors

Multiple

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