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ICSA-20-280-01  ·  Published 2021-06-17  ·  View on CISA ICS-CERT ↗

Rockwell Automation ISaGRAF5 Runtime (Update A)

CVSS 9.1 CRITICAL

Risk Summary

Successful exploitation of these vulnerabilities may result in remote code execution, information disclosure, or a denial-of-service condition.

Remediations

  • Rockwell Automation recommends users update to ISaGRAF Runtime 5 Version 5.72.00. End users are encouraged to restrict or block access on TCP 1131 and TCP 1132 from outside the industrial control system. Confirm the least-privilege user principle is followed and user/service account access to Runtime's folder location is granted with a minimum amount of rights needed.
  • Rockwell Automation recommends users of affected versions evaluate the mitigations provided and apply the appropriate mitigations to deployed products. Users are encouraged to combine this guidance with the general security guidelines for a comprehensive defense-in-depth strategy.
  • Reference Rockwell Automation.
  • Employ proper network segmentation and security controls.
  • Minimize network exposure for all control system devices.
  • Locate control systems behind firewalls.
  • Isolate control systems from other networks when possible.
  • Refer to the Converged Plantwide Ethernet (CPwE) Design and Implementation Guide for best practices deploying network segmentation and broader defense-in-depth strategies.
  • Consider using proper network infrastructure controls, such as firewalls, UTM devices, VPN, or other security appliances.
  • Ensure the least-privilege user principle is followed, and user/service account access to Runtime's folder location is granted with a minimum amount of rights, as needed.
  • Please see publications from Rockwell Automation and Schneider Electric, Xylem, or contact GE for further information about how to mitigate these vulnerabilities in additional affected products.

Affected Vendors

Rockwell Automation

Affected Products (5)

Rockwell Automation · Micro800 family vers:all/*
Rockwell Automation · GE Steam Power's ALSPA S6 MFC3000 and MFC1000 vers:all/*
Rockwell Automation · AADvance Controller <= 1.40
Rockwell Automation · ISaGRAF Free Runtime in ISaGRAF6 Workbench <= 6.6.8
Rockwell Automation · MultiSmart Gen-1 devices and MultiSmart Gen-2 < 3.2.0

Affected Sectors

Critical Manufacturing, Energy, Water and Wastewater Systems

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