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ICSA-22-242-08  ·  Published 2022-08-30  ·  View on CISA ICS-CERT ↗

Honeywell Trend Controls Inter-Controller Protocol

CVSS 7.1 HIGH

Risk Summary

Successful exploitation of this vulnerability could cause the loss of authentication information in cleartext by sniffing network traffic.

CVEs (1)

Remediations

  • Procure and utilize currently supported hardware through reputable supply channels.
  • Apply product updates as available.
  • Follow guidance in the product security manual to ensure isolation of network segments upon which building automation controllers reside.
  • Ensure adequate security controls are in place between OT and IT network segments.
  • Disable unnecessary accounts and services.
  • Restrict system access to authorized personnel only and follow a least privilege approach.
  • Apply defense-in-depth strategies.
  • Log and monitor network traffic for suspicious activity.
  • For IQ4 Series controllers, ensure the latest available firmware version is utilized. The latest firmware may be obtained from a dealer or the Trend Partner Network (login required).
  • Follow the Security Best Practice for Trend Products included with product documentation. Additional copies may be obtained from a dealer or the Trend Partner Network (login required).

Affected Vendors

Honeywell

Affected Products (1)

Honeywell · IQ Series Controllers that utilize Inter-Controller (IC) protocol vers:all/*

Affected Sectors

Multiple

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