CVE-2017-16315
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 · uneditedMultiple exploitable buffer overflow vulnerabilities exist in the PubNub message handler for the "cc" channel of Insteon Hub running firmware version 1012. Specially crafted commands sent through the PubNub service can cause a stack-based buffer overflow overwriting arbitrary data. An attacker should send an authenticated HTTP request to trigger this vulnerability. In cmd s_sonos, at 0x9d01c3a0, the value for the `s_state` key is copied using `strcpy` to the buffer at `$sp+0x2b0`.This buffer is 32 bytes large, sending anything longer will cause a buffer overflow.
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 confidenceStack-based buffer overflow in Insteon Hub firmware 1012's PubNub message handler for the 'cc' channel. The 'cmd s_sonos' function uses unbounded strcpy to copy the s_state key value into a 32-byte stack buffer at $sp+0x2b0 without length validation, allowing overflow when input exceeds 32 bytes.
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= 1012CVSS 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
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/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 Insteon Hub firmware versionAccess the Insteon Hub web interface or check via the Insteon mobile app. Navigate to Settings > Hub Info or similar location to view the firmware version number.Affected if The firmware version displayed is exactly 1012
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Confirm PubNub integration is activeCheck the Insteon Hub network or cloud settings within the web interface or mobile app to see if PubNub messaging is enabled.Affected if PubNub integration is enabled and configured for cloud communication
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Verify the cc channel is in useInspect the PubNub channel configuration for the hub. The vulnerability specifically affects the 'cc' channel handler.Affected if The 'cc' channel is actively configured or subscribed for PubNub communications
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Check for s_sonos command exposureReview any automation rules, scenes, or external integrations that may send PubNub messages to the hub containing the 's_sonos' command with an s_state parameter.Affected if Automation rules or external systems can send PubNub messages to the cc channel with the s_state key
You are affected if your Insteon Hub runs firmware version 1012 AND has PubNub enabled with the cc channel configured, as the overflow occurs when processing s_state values in PubNub messages on that channel.
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 dataReplace strcpy with strncpy or equivalent bounded copy function with explicit length limits, add input validation for the s_state parameter, and deploy updated firmware. Consider network segmentation to limit PubNub exposure.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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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 sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2017-16315 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
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