CVE-2016-0870
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 · uneditedThe web server in Trane Tracer SC 4.2.1134 and earlier allows remote attackers to read sensitive configuration files via a direct request.
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 confidenceThe Trane Tracer SC web server versions 4.2.1134 and earlier contains a path traversal vulnerability allowing remote unauthenticated attackers to access sensitive configuration files via direct HTTP requests. This exposes system credentials, network settings, and potentially other operational parameters.
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<= 4.2.1134CVSS 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
- None
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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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Confirm the Trane Tracer SC productAccess the web management interface of the device or check system documentation to verify the device model is Trane Tracer SCAffected if The device is a Trane Tracer SC controller
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Check the Tracer SC firmware versionLog into the Tracer SC administrative interface and navigate to the system information or about page to view the installed firmware versionAffected if The firmware version is 4.2.1134 or any version earlier than 4.2.1134
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Verify web server network accessibilityDetermine if the Tracer SC HTTP/HTTPS management interface is reachable from network segments that contain untrusted users or systemsAffected if The web management interface is accessible from untrusted or external network segments without proper access controls
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Confirm unauthenticated HTTP access is possibleAttempt to access the Tracer SC login page or verify that the web server responds to HTTP requests without requiring authenticationAffected if The web server accepts HTTP connections without requiring authentication credentials
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Review HTTP request handlingExamine the web server configuration or access logs to determine if the server processes URL path parameters without proper sanitizationAffected if The web server allows path traversal characters (such as ../) in HTTP requests to access files outside the web root directory
The environment is affected if the Trane Tracer SC firmware version is 4.2.1134 or earlier and the web interface is network-accessible to untrusted users, allowing path traversal attacks to access sensitive configuration files.
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 dataApply the vendor patch or firmware update to remediate the path traversal vulnerability. If no patch is available, restrict network access to the Tracer SC management interface via firewall rules or network segmentation to limit exposure to authorized personnel only.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-0870 — 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-2016-0870 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
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