Telepresence Tc SoftwareApplication · Cisco
CVE-2015-4271
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 · uneditedCisco TelePresence TC before 7.3.4 on Integrator C devices allows remote attackers to bypass authentication via vectors involving multiple request parameters, aka Bug ID CSCuv00604.
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 confidenceThis is an authentication bypass vulnerability in Cisco TelePresence TC firmware versions prior to 7.3.4 on Integrator C devices. The vulnerability allows remote attackers to bypass authentication mechanisms through manipulation of multiple HTTP request parameters. This is a network-based attack requiring no prior credentials.
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 Tc SoftwareApplication
= 7.3.0= 7.3.1= 7.3.2= 7.3.3CVSS 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
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- None
AV:N/AC:L/Au:N/C:P/I:P/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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Identify device modelAccess the TelePresence device web interface or CLI and navigate to System Information or use 'show system information' command to confirm the device is a Cisco TelePresence Integrator C model.Affected if Device is not an Integrator C model - different models may have different firmware paths and may not be affected by this specific vulnerability.
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Determine TC firmware versionIn the web interface, go to Maintenance > System Information or use the CLI command 'show version' to retrieve the installed TC firmware version number.Affected if Version is 7.3.0, 7.3.1, 7.3.2, or 7.3.3 - these specific versions contain the authentication bypass flaw.
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Verify HTTP management interface is enabledCheck the device network settings via the web interface under Setup > Network or use CLI 'show network' to confirm HTTP (port 80) or HTTPS (port 443) management access is enabled.Affected if HTTP/HTTPS management interface is enabled and accessible - the vulnerability is exploited via HTTP request parameter manipulation.
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Assess network exposureDetermine if the device management interface is reachable from untrusted networks by reviewing firewall rules, ACLs, or NAT configurations that permit access to the device IP on ports 80/443.Affected if The management interface is exposed to the internet or untrusted networks - this enables remote unauthenticated attackers to exploit the bypass.
A user is affected if they have a TelePresence Integrator C device running TC firmware version 7.3.0 through 7.3.3 with HTTP management accessible from a network where untrusted actors can send requests.
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 Cisco TelePresence TC firmware to version 7.3.4 or later to patch the authentication bypass vulnerability. If immediate patching is not possible, restrict network access to the TelePresence device management interfaces using firewall rules or ACLs to limit exposure to untrusted networks.
Fix this in Telepresence Tc Software
Scoped from the published advisory
- 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-2015-4271 — 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-2015-4271 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
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