CVE intelligence and bounded remediation

CVE-2020-12003 — Rockwellautomation Factorytalk Linx security vulnerability

High CVSS 7.5

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. An exposed API call allows users to provide files to be processed without sanitation. This may allow an attacker to use specially crafted requests to traverse the file system and expose sensitive data on the local hard drive.

Severity
High
CVSS
7.5 (3.1)
Published
2020-06-15
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-22

Affected products

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

Matched remediation archetype

Path traversal, unsafe upload, and file handling

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Check exposure

  • Trace untrusted filenames, archive entries, URLs, and path segments into read, write, include, extraction, and upload operations.
  • Identify filesystem roots, mount permissions, symbolic-link behavior, archive handling, and whether uploaded content is web-accessible or executable.
  • Review canonicalization and containment checks across supported operating systems and storage backends.

Remediate safely

  • Generate server-side storage identifiers and resolve paths beneath a fixed root using filesystem-aware containment checks.
  • Reject absolute, parent-relative, alternate-separator, device, link, and archive entries that escape the intended root.
  • Store uploads outside executable or served paths, validate type and size, and use private atomic temporary files.

Authoritative sources

Complete CVE record and remediation plan

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