Telepresence Video Communication Server SoftwareApplication · Cisco
CVE-2015-6376
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 · uneditedCross-site request forgery (CSRF) vulnerability in Cisco TelePresence Video Communication Server (VCS) X8.5.1 allows remote attackers to hijack the authentication of arbitrary users, aka Bug ID CSCuv72412.
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 confidenceCross-site request forgery (CSRF) vulnerability in Cisco TelePresence Video Communication Server X8.5.1 allows remote attackers to hijack authentication of arbitrary users by tricking authenticated users into submitting malicious requests.
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
Telepresence Video Communication Server SoftwareApplication
= x8.5.1CVSS 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
- M
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:M/Au:N/C:P/I:P/A:P
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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Verify VCS software versionLog into the Cisco TelePresence VCS web interface and navigate to the version information page, or run 'xCommand SystemUnitVersion' via the CLI to confirm the exact software version.Affected if Version is exactly x8.5.1
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Confirm web interface is accessibleAccess the VCS login page via HTTPS on port 443 to confirm the web administrative interface is reachable.Affected if The web interface is accessible (required for CSRF attack vector)
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Inspect login form for anti-CSRF tokenView the HTML source of the VCS login page and any administrative forms. Search for a hidden input field or token parameter with a name like 'csrf_token', 'anticsrf', or 'request_token'.Affected if No anti-CSRF token is present in the HTML forms, making the application vulnerable
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Check session cookies for SameSite attributeUse browser developer tools or a proxy to capture a session cookie from the VCS. Inspect the Set-Cookie header for the SameSite attribute.Affected if SameSite attribute is missing or set to 'None' without Secure flag, indicating lack of CSRF protection
Environment is affected if the Cisco TelePresence VCS is running exactly version x8.5.1 and lacks anti-CSRF tokens in forms or SameSite cookie protections.
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 vendor patch from Cisco for VCS X8.5.1; implement anti-CSRF tokens or SameSite cookie attributes as defense-in-depth if patch unavailable.
Fix this in Telepresence Video Communication Server Software
Scoped from the published advisory
- Consultation2.0 h
- Implementation1.0 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-2015-6376 — 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-2015-6376 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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