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Factorytalk AssetcentreApplication · Rockwellautomation

CVE-2021-27470

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 deserialization vulnerability exists in how the LogService.rem service in Rockwell Automation FactoryTalk AssetCentre v10.00 and earlier verifies serialized data. This vulnerability may allow a remote, unauthenticated attacker to execute arbitrary commands in FactoryTalk AssetCentre.

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 critical deserialization vulnerability exists in the LogService.rem component of Rockwell Automation FactoryTalk AssetCentre v10.00 and earlier. The service fails to properly validate serialized data before processing it, allowing unauthenticated remote attackers to inject malicious serialized payloads that result in arbitrary command execution on the affected system.

MitigationApply the vendor patch for CVE-2021-27470 to FactoryTalk AssetCentre. If patching is not immediately possible, restrict network access to the LogService.rem and associated FactoryTalk services to prevent unauthenticated remote exploitation.

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. Confirm FactoryTalk AssetCentre installation
    Check for FactoryTalk AssetCentre in installed programs list (Windows Control Panel > Programs and Features) or look for its installation directory under Program Files/Rockwell Software
    Affected if FactoryTalk AssetCentre is present on the system
  2. Identify installed version
    Locate the FactoryTalk AssetCentre installation directory and check version information in the application properties, or use the product's About/Version dialog if accessible
    Affected if Version is 10.00 or earlier, or version cannot be determined but product is present
  3. Verify LogService.rem component status
    Check if LogService (a Windows service related to FactoryTalk AssetCentre logging) is running by opening Services console (services.msc) and looking for LogService or similar FactoryTalk-related services
    Affected if LogService or FactoryTalk logging services are running and exposed
  4. Assess network exposure
    Use netstat or a network port scanner to check for listening ports associated with FactoryTalk services (typically .NET remoting ports), and verify whether these ports are bound to 0.0.0.0 or accessible from untrusted networks
    Affected if The LogService.rem or FactoryTalk AssetCentre services are listening on accessible network interfaces and accept unauthenticated connections

A system is affected if FactoryTalk AssetCentre version 10.00 or earlier is installed with the LogService.rem component running and network-accessible to untrusted users.

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 for CVE-2021-27470 to FactoryTalk AssetCentre. If patching is not immediately possible, restrict network access to the LogService.rem and associated FactoryTalk services to prevent unauthenticated remote exploitation.

Recommended fix Moderate confidence

Latest available version of FactoryTalk AssetCentre beyond v10.00 (contact Rockwell Automation for specific version number)

  1. 1. Identify the current FactoryTalk AssetCentre version installed in the environment
  2. 2. Contact Rockwell Automation technical support or visit their support portal to obtain the latest patched version of FactoryTalk AssetCentre
  3. 3. Before upgrading, backup all critical data and configurations
  4. 4. Download the latest FactoryTalk AssetCentre version from Rockwell Automation's official download site or obtain via support
  5. 5. Follow Rockwell Automation's official upgrade documentation to install the patched version
  6. 6. After upgrading, verify that the LogService.rem service is functioning correctly
  7. 7. Test that FactoryTalk AssetCentre is operational and validate the vulnerability is no longer present
  8. 8. Monitor Rockwell Automation's security advisories for future updates
Caveat Upgrade should be planned with maintenance window; review release notes for any configuration or feature changes that may impact existing deployments

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

Fix this in Factorytalk Assetcentre Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
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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-2021-27470 in production — separate from our analysis above.

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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