CVE-2018-3832
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 · uneditedAn exploitable firmware update vulnerability exists in Insteon Hub running firmware version 1013. The HTTP server allows for uploading arbitrary MPFS binaries that could be modified to enable access to hidden resources which allow for uploading unsigned firmware images to the device. To trigger this vulnerability, an attacker can upload an MPFS binary via the '/mpfsupload' HTTP form and later on upload the firmware via a POST request to 'firmware.htm'.
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 confidenceInsteon Hub firmware version 1013 contains an HTTP server vulnerability allowing arbitrary MPFS binary uploads via the '/mpfsupload' endpoint. Attackers can modify these MPFS binaries to access hidden resources that permit uploading unsigned firmware images through 'firmware.htm', enabling complete device compromise.
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= 1013CVSS 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
- Low
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/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 checksWork through these to decide whether this CVE applies to you.
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Identify the device modelInspect the Insteon Hub label or check the device documentation to confirm the model number is 2245 222.Affected if The device is an Insteon Hub 2245 222.
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Determine the firmware versionAccess the device's web interface and navigate to the settings or status page to view the firmware version, or use an HTTP GET request to the device's base URL and inspect the response headers or HTML for version information.Affected if The firmware version is exactly 1013.
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Confirm HTTP server is activeSend an HTTP request to the device IP address on port 80 and verify the device responds with an HTTP server banner or Insteon Hub login page.Affected if The device HTTP server is accessible on the network.
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Check for vulnerable endpoint exposureSend an HTTP GET request to http://<device-ip>/mpfsupload and verify the endpoint responds (even if with an error), confirming the upload interface is present.Affected if The /mpfsupload endpoint is accessible and responds to requests.
The environment is affected if the device is an Insteon Hub 2245 222 running firmware version 1013 with the HTTP interface exposed on the network.
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 dataUpdate Insteon Hub to a patched firmware version. If unavailable, disable or restrict network access to the device's HTTP interface and monitor for unauthorized firmware upload attempts.
- Consultation2.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-3832 — 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-2018-3832 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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- Version or environment caveats, and links to real fixes
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