CVE-2023-2443
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 ThinManager product allows the use of medium strength ciphers. If the client requests an insecure cipher, a malicious actor could potentially decrypt traffic sent between the client and server API.
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 confidenceRockwell Automation ThinManager uses medium-strength ciphers that can be requested by clients, allowing a man-in-the-middle attacker to potentially decrypt intercepted communications between clients and the server API due to weak cryptographic protection.
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<= 13.0CVSS 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
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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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Check ThinManager installed versionOpen ThinManager or check Add/Remove Programs for ThinManager version number. Compare to the affected range <= 13.0Affected if Version is 13.0 or lower
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Locate ThinManager cipher configurationAccess ThinManager configuration settings, typically found in the ThinManager Administration or Server Configuration area where security/TLS settings are definedAffected if Configuration area exists but cipher settings are not reviewed
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Identify enabled cipher suitesExamine the list of enabled cipher suites in the ThinManager security configuration. Look for medium-strength ciphers (such as 3DES, RC4, medium-strength AES variants) or weak ciphers (40-bit/56-bit)Affected if Medium-strength or weak ciphers (below 128-bit) are listed as enabled or available for client requests
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Verify cipher enforcement policyCheck if ThinManager is configured to accept or require client-requested cipher suites. Determine whether the server restricts connections to only strong (128-bit or higher) ciphersAffected if Server accepts medium or weak ciphers requested by clients, or no cipher restriction policy is enforced
Environment is affected if ThinManager version is 13.0 or lower AND medium or weak cipher suites are enabled or accepted in the configuration, allowing potential decryption of client-server communications.
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 dataDisable medium and weak cipher suites in ThinManager configuration, enforcing only strong (128-bit or higher) ciphers for all client-server communications.
- Consultation3.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,832.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-2443 — 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-2023-2443 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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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.
- 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