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Factorytalk AssetcentreApplication · Rockwellautomation

CVE-2021-27476

CRITICAL · 9.8 CVSS v3.1 Published 2022-03-23
Fix available
A fix is available. Upgrade to after 10.00 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A vulnerability exists in the SaveConfigFile function of the RACompare Service, which may allow for OS command injection. This vulnerability may allow a remote, unauthenticated attacker to execute arbitrary commands in Rockwell Automation FactoryTalk AssetCentre v10.00 and earlier.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

A command injection vulnerability exists in the SaveConfigFile function of the RACompare Service in Rockwell Automation FactoryTalk AssetCentre v10.00 and earlier. A remote, unauthenticated attacker can inject and execute arbitrary OS commands due to insufficient input validation in the configuration file saving function.

MitigationApply the vendor patch or update FactoryTalk AssetCentre to a version beyond v10.00. If immediate patching is not possible, network segment the affected system and restrict access to the RACompare Service port.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Factorytalk AssetcentreApplication
Affected:<= 10.00

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify if FactoryTalk AssetCentre is installed
    Look for FactoryTalk AssetCentre installation directories (commonly under C:\Program Files\Rockwell Software\ or C:\Program Files (x86)\Rockwell Software\) or check Windows Programs and Features for 'FactoryTalk AssetCentre' entry
    Affected if FactoryTalk AssetCentre is not installed on the system
  2. Determine the installed version of FactoryTalk AssetCentre
    Check the program version in Windows Programs and Features, or look for version information in the installation directory (often in an About or version file)
    Affected if The installed version is 10.00 or earlier (any version up to and including 10.00)
  3. Verify the RACompare Service exists and is running
    Open Windows Services and look for a service named 'RACompare' or similar, or check running processes for RACompare-related executables
    Affected if The RACompare Service is present and running on the system
  4. Check network exposure of the RACompare Service
    Identify which ports the RACompare Service listens on (check service configuration or documentation for default port), then use netstat or port scanning to determine if those ports are accessible from untrusted networks
    Affected if The RACompare Service port is exposed to untrusted/network-accessible interfaces without proper network segmentation

The system is affected if FactoryTalk AssetCentre version 10.00 or earlier is installed with the RACompare Service running and accessible on the network.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to a release after 10.00
Interim mitigation

Apply the vendor patch or update FactoryTalk AssetCentre to a version beyond v10.00. If immediate patching is not possible, network segment the affected system and restrict access to the RACompare Service port.

Recommended fix Moderate confidence

FactoryTalk AssetCentre version 10.00 with latest security patches applied, or upgrade to the next major version if available from Rockwell Automation

  1. 1. Identify current FactoryTalk AssetCentre version through the Help > About section in the application or via the RACompare Service configuration.
  2. 2. Contact Rockwell Automation technical support or visit their official patch download portal to obtain the latest security update for FactoryTalk AssetCentre.
  3. 3. Download the patched version (version 10.00 or later updates/patches that address CVE-2021-27476).
  4. 4. Before applying the update, perform a complete backup of the FactoryTalk AssetCentre configuration and database.
  5. 5. Apply the security update following the installation instructions provided in the Rockwell Automation advisory.
  6. 6. Verify the RACompare Service is running correctly after the update.
  7. 7. Validate that the SaveConfigFile function no longer accepts unsanitized input that could lead to OS command injection.
Caveat Review release notes for any configuration changes required when applying patches; test in non-production environment first

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Factorytalk Assetcentre Scoped from the published advisory
  • Consultation8.0 h
  • Implementation4.0 h
  • Testing12.0 h
  • Review / QA6.0 h
30.0 hours of engineering $5,200
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2021-27476 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data