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ICSA-20-329-01  ·  Published 2020-11-24  ·  View on CISA ICS-CERT ↗

Rockwell Automation FactoryTalk Linx

CVSS 9.8 CRITICAL

Risk Summary

Successful exploitation of these vulnerabilities could allow a denial-of-service condition, remote code execution, or leak information that could be used to bypass address space layout randomization (ASLR).

Remediations

  • Rockwell Automation recommends users of the affected FactoryTalk Linx update to an available software revision that addresses the associated risk.
  • FactoryTalk Linx v6.10/6.11 (see Patch Answer ID 1126433). Additionally, the user could move to v6.20, which is available on PCDC (login required).
  • Run all software as “user” (not as “administrator”) to minimize the impact of malicious code on the infected system.
  • Use of Microsoft AppLocker or other similar whitelisting application can help mitigate risk. Information on using AppLocker with Rockwell Automation products is available at Knowledgebase Article ID 546989 (login required).
  • Confirm that the least-privilege user principle is followed, and user/service account access to shared resources (such as a database) is only granted with a minimum amount of rights as needed.
  • Use trusted software, software patches, antivirus/antimalware programs, and interact only with trusted websites and attachments.
  • Minimize network exposure for all control system devices and/or systems and confirm that they are not accessible from the Internet. For further information about the risks of unprotected Internet-accessible control systems, please see Knowledgebase Article ID 494865 (login required).
  • Locate control system networks and devices behind firewalls and isolate them from the business network.
  • When remote access is required, use secure methods, such as virtual private networks (VPNs), recognizing that VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize that VPN is only as secure as the connected devices.
  • For more information refer to Rockwell's Industrial Security Advisory ID 1128684 (login required).

Affected Vendors

Rockwell Automation

Affected Products (1)

Rockwell Automation · FactoryTalk Linx <= 6.11

Affected Sectors

Critical Manufacturing, Energy, Water and Wastewater Systems

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