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Rewterz Threat Advisory – ICS: Rockwell Automation EDS Subsystem Denial of Service Vulnerability

Severity

High

Analysis Summary

CVE-2020-12038

A memory corruption vulnerability exists in the algorithm that matches square brackets in the EDS subsystem. This may allow an attacker to craft specialized EDS files to crash the EDSParser COM object, leading to denial-of-service conditions.

CVE-2020-12034 

The EDS subsystem does not provide adequate input sanitization, which may allow an attacker to craft specialized EDS files to inject SQL queries and manipulate the database storing the EDS files. This can lead to denial-of-service conditions.

Impact

Denial of Service

Affected Vendors

Rockwell Automation

Affected Products

  • FactoryTalk Linx software Versions 6.00, 6.10 and 6.11
  • RSLinx Classic: Version 4.11.00 and prior
  • RSNetWorx software: Version 28.00.00 and prior
  • Studio 5000 Logix Designer software Version 32 and prior

Remediation

Rockwell Automation has released a patch.

Follow the instructions in knowledge base article RAid 1125928