Prime HomeApplication · Cisco

CVE-2016-6408

HIGH · 7.5 CVSS v3.0 Published 2016-09-24
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges Zero-click

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 · unedited
Cisco Prime Home 5.2.0 allows remote attackers to read arbitrary files via an XML document containing an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue, aka Bug ID CSCvb17814.

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 confidence

This is an XML External Entity (XXE) injection vulnerability in Cisco Prime Home 5.2.0. Attackers can exploit the insecure XML parser configuration by submitting crafted XML documents containing external entity declarations paired with entity references. This allows remote unauthenticated attackers to read arbitrary files from the server's filesystem, potentially exposing sensitive configuration files, credentials, or other data.

MitigationDisable external entity processing and DTD (Document Type Definition) processing in the XML parser configuration, or apply vendor-supplied patches/upgrade to a patched version of Cisco Prime Home.

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
Prime HomeApplication
Affected:= 5.2.0

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
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 checks

Work through these to decide whether this CVE applies to you.

  1. Confirm Cisco Prime Home is installed
    Identify the Cisco Prime Home application running on the system by checking installed software, running services, or web application directories
    Affected if Cisco Prime Home is found running on the system
  2. Verify the installed version
    Determine the exact version of Cisco Prime Home by checking the application's about page, version file, or service information
    Affected if The installed version is exactly 5.2.0
  3. Inspect XML parser configuration
    Locate and review the XML parser configuration files used by the application, looking for settings related to external entity processing and DTD processing
    Affected if External entity or DTD processing is enabled in the XML parser configuration
  4. Check for XXE-prone XML endpoints
    Identify XML-handling endpoints or APIs within the Cisco Prime Home web interface that accept user-submitted XML content
    Affected if The application accepts XML input at unauthenticated or authenticated endpoints without disabling external entities
  5. Review server filesystem access
    Examine application logs and filesystem for any unauthorized access or file reads that may indicate exploitation of XXE
    Affected if Evidence exists of arbitrary file reads or unusual XML-related errors in logs

A user is affected if they are running Cisco Prime Home version 5.2.0 with an XML parser configuration that permits external entity or DTD processing.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Disable external entity processing and DTD (Document Type Definition) processing in the XML parser configuration, or apply vendor-supplied patches/upgrade to a patched version of Cisco Prime Home.

Fix this in Prime Home Scoped from the published advisory
  • Consultation3.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
12.0 hours of engineering $2,130
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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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2016-6408 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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  • No spam, self-promotion, credentials, or personal data