CVE intelligence and bounded remediation

CVE-2020-12001 — Rockwellautomation Factorytalk Linx security vulnerability

Critical CVSS 9.8

FactoryTalk Linx versions 6.00, 6.10, and 6.11, RSLinx Classic v4.11.00 and prior,Connected Components Workbench: Version 12 and prior, ControlFLASH: Version 14 and later, ControlFLASH Plus: Version 1 and later, FactoryTalk Asset Centre: Version 9 and later, FactoryTalk Linx CommDTM: Version 1 and later, Studio 5000 Launcher: Version 31 and later Stud, 5000 Logix Designer software: Version 32 and prior is vulnerable. The parsing mechanism that processes certain file types does not provide input sanitation. This may allow an attacker to use specially crafted files to traverse the file system and modify or expose sensitive data or execute arbitrary code.

Severity
Critical
CVSS
9.8 (3.1)
Published
2020-06-15
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-20

Affected products

  • rockwellautomation / factorytalk_linx / 6.00
  • rockwellautomation / factorytalk_linx / 6.10
  • rockwellautomation / factorytalk_linx / 6.11
  • rockwellautomation / rslinx_classic

Matched remediation archetype

Command, code, expression, and template injection

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Check exposure

  • Trace untrusted values to process execution, interpreters, evaluators, template engines, dynamic imports, and administrative scripting features.
  • Determine whether the affected path is reachable across each trust boundary and which service account or host privilege it inherits.
  • Review configuration for optional execution features, unsafe compatibility modes, and shell invocation.

Remediate safely

  • Replace string-built commands or evaluated code with fixed operations and structured argument APIs that do not invoke a shell.
  • Use strict allowlists for operation identifiers and reject unexpected input before it reaches any interpreter.
  • Update the affected component and add inert regression tests covering metacharacters, encoding variants, and alternate request paths.

Authoritative sources

Complete CVE record and remediation plan

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