CVE-2016-2364
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 Chrome HUDweb plugin before 2016-05-05 for Fonality (previously trixbox Pro) 12.6 through 14.1i uses the same hardcoded private key across different customers' installations, which allows remote attackers to defeat cryptographic protection mechanisms by leveraging knowledge of this key from another installation.
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 confidenceThe Chrome HUDweb plugin for Fonality (trixbox Pro) versions 12.6 through 14.1i contains a hardcoded private key embedded in the plugin binary. Because the same cryptographic key is used across all customer installations, an attacker who extracts this key from one environment can use it to decrypt communications or bypass authentication on any other vulnerable Fonality installation.
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<= 1.4.1= 12.6= 12.8= 14.1iCVSS 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:3.0/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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Confirm HUDweb plugin installationLocate the Fonality HUDweb plugin binary or installation directory on the system. Common locations may include browser plugin directories, Fonality/trixbox installation folders, or the web server document root if web-based.Affected if The plugin binary is found on the system
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Identify the HUDweb plugin versionCheck the plugin version information through the browser's extension list, file properties of the binary, or by querying the plugin directly via its web interface if available.Affected if Version is 1.4.1 or lower for Hud Web, or exactly 12.6, 12.8, or 14.1i for Fonality
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Extract and inspect the plugin binary for cryptographic materialExamine the plugin binary file using a hex editor or strings utility to locate embedded cryptographic key material. Search for patterns consistent with private keys or shared secrets.Affected if A private key or shared cryptographic secret is found embedded in the binary
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Verify key reuse across installationsIf a hardcoded key is found, compare it against keys extracted from other Fonality installations (if accessible) or check known public disclosures of the default key for this vulnerability.Affected if The same key is present across multiple installations or matches known CVE-2016-2364 key material
The system is affected if the Fonality HUDweb plugin is installed with version 1.4.1 or lower (or versions 12.6, 12.8, 14.1i) and contains a hardcoded private key that is identical across installations.
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 the HUDweb plugin to the version released on or after 2016-05-05 which implements unique per-installation cryptographic keys, or disable the plugin if immediate upgrade is not possible.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA3.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2016-2364 — 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-2016-2364 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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