CVE-2016-4531
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 · uneditedRockwell Automation FactoryTalk EnergyMetrix before 2.20.00 does not invalidate credentials upon a logout action, which makes it easier for remote attackers to obtain access by leveraging an unattended workstation.
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 · moderate confidenceFactoryTalk EnergyMetrix versions prior to 2.20.00 contain a session management flaw where the logout function does not properly invalidate credentials or terminate active sessions on the server side. This allows an attacker with physical or remote access to an unattended workstation to continue using the authenticated session after logout is initiated.
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<= 2.10.00CVSS 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
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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 checksWork through these to decide whether this CVE applies to you.
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Identify installed FactoryTalk EnergyMetrix versionLocate the FactoryTalk EnergyMetrix installation on the system and determine the exact version number. This is typically found in Add/Remove Programs, the application's About dialog, or installation directories.Affected if The installed version is 2.10.00 or lower
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Verify session invalidation behaviorLog into FactoryTalk EnergyMetrix, perform a logout, then attempt to use the previous session credentials or token to access the system. Document whether the session remains valid after logout.Affected if The session remains usable after logout is initiated
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Review session management configurationCheck the application's configuration files or registry for session timeout and invalidation settings related to FactoryTalk EnergyMetrix.Affected if No server-side session termination is configured or the configuration allows persistent sessions
If FactoryTalk EnergyMetrix version 2.10.00 or earlier is installed, the session logout flaw is present.
Generated from the published advisory. Verify against your own configuration.
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.
From vendor dataUpgrade to FactoryTalk EnergyMetrix version 2.20.00 or later to obtain the patched session invalidation logic. As compensating controls, enforce session timeouts, implement automatic screen-lock policies, and train users to lock workstations when unattended.
- Consultation2.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-4531 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2016-4531 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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
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