CVE-2015-6434
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 Prime Infrastructure does not properly restrict use of IFRAME elements, which makes it easier for remote attackers to conduct clickjacking attacks and unspecified other attacks via a crafted web site, related to a "cross-frame scripting (XFS)" issue, aka Bug ID CSCux64856.
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 confidenceCisco Prime Infrastructure fails to restrict IFRAME element usage, allowing attackers to embed the application in hidden frames on malicious websites. This cross-frame scripting (XFS) vulnerability enables clickjacking attacks where users are tricked into performing unintended actions, and may facilitate other client-side attacks.
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= 2.2\(2\)CVSS 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
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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 installed Cisco Prime Infrastructure versionAccess the Cisco Prime Infrastructure administrative interface and navigate to the version or about section, typically found under Administration > Settings or a similar path within the web console. Alternatively, check the system banner or login page for version information.Affected if The installed version is exactly 2.2(2)
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Verify X-Frame-Options header presenceUse browser developer tools (Network tab) or a command-line tool like curl to inspect the HTTP response headers when accessing the Cisco Prime Infrastructure login or main page. Run: curl -I https://[your-pi-host]/webgui/ and look for X-Frame-Options in the response headers.Affected if The X-Frame-Options header is absent from the HTTP response
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Verify Content Security Policy frame-ancestors directiveInspect the HTTP response headers for a Content-Security-Policy header. Check if the frame-ancestors directive is configured to restrict which domains can embed the application. Use curl -I to retrieve headers and examine the CSP value.Affected if No Content-Security-Policy header with frame-ancestors directive is present, or the directive permits untrusted domains
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Test iframe embeddabilityCreate a simple HTML page with an iframe element pointing to your Cisco Prime Infrastructure URL (e.g., <iframe src="https://[your-pi-host]/webgui/">) and open it in a browser. Confirm whether the application loads within the iframe.Affected if The Cisco Prime Infrastructure application successfully renders inside the iframe from an arbitrary origin
You are affected if running Cisco Prime Infrastructure version 2.2(2) AND the application can be embedded in iframes from external sites due to missing X-Frame-Options or CSP frame-ancestors restrictions.
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 dataConfigure the web server or application to send X-Frame-Options: DENY or SAMEORIGIN headers, or implement Content Security Policy with frame-ancestors directive to prevent the application from being embedded in iframes on untrusted domains.
- Consultation2.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2015-6434 — 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-2015-6434 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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