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ICSA-21-341-01  ·  Published 2021-12-07  ·  View on CISA ICS-CERT ↗

Hitachi Energy RTU500 OpenLDAP

CVSS 7.5 HIGH

Risk Summary

Successful exploitation of these vulnerabilities could cause a denial-of-service condition in the affected version of the RTU500 series product.

Remediations

  • RTU500 series CMU: Firmware Versions 12.4.X to Version 12.4.11 (to be released by end of January 2022)
  • RTU500 series CMU: Firmware Versions 12.6.X to Version 12.6.7
  • RTU500 series CMU: Firmware Versions 12.7.X to Version 12.7.2
  • RTU500 series CMU: Firmware Versions 13.0.X to Version 13.2.3
  • RTU500 series CMU: Firmware Versions 13.1.X to Version 13.2.3
  • RTU500 series CMU: Firmware Versions 13.2.X to Version 13.2.3
  • As the vulnerabilities affect only the RTU500 series in which CAM function is configured and enabled, a possible mitigation is to disable the CAM function if it is not used.
  • The CAM function is disabled by default.
  • Physically protect process control systems from direct access by unauthorized personnel.
  • Do not directly connect to the Internet.
  • Separate from other networks by means of a firewall system that has a minimal number of ports exposed.
  • Process control systems should not be used for Internet surfing, instant messaging, or receiving emails.
  • Portable computers and removable storage media should be carefully scanned for viruses before they are connected to a control system. Please see Hitachi Energy advisory 8DBD000066 for further mitigation and update information.

Affected Vendors

Hitachi Energy

Affected Products (6)

Hitachi Energy · RTU500 Series CMU 12.6.X
Hitachi Energy · RTU500 Series CMU 13.0.X
Hitachi Energy · RTU500 Series CMU 13.2.1
Hitachi Energy · RTU500 Series CMU 12.7.X
Hitachi Energy · RTU500 Series CMU 13.1.X
Hitachi Energy · RTU500 Series CMU 12.4.X

Affected Sectors

Energy

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