CVE-2011-5100
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 web interface in McAfee Firewall Reporter before 5.1.0.13 does not properly implement cookie authentication, which allows remote attackers to obtain access, and disable anti-virus functionality, via an HTTP request.
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 web interface in McAfee Firewall Reporter before 5.1.0.13 has improper cookie authentication implementation, allowing remote unauthenticated attackers to bypass authentication via crafted HTTP requests and gain unauthorized access to disable anti-virus functionality.
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<= 5.1.0.6CVSS 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
- Partial
AV:N/AC:L/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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Confirm McAfee Firewall Reporter is installedCheck system for McAfee Firewall Reporter installation directories (e.g., C:\Program Files\McAfee\Firewall Reporter or /opt/mcafee/firewallreporter) or running services named 'Firewall Reporter' or 'MFR'Affected if Product is not found on the system, so the CVE does not apply
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Identify installed versionLocate version information in installation directory, registry (HKLM\Software\McAfee\FirewallReporter\CurrentVersion), or by querying the running serviceAffected if Version is 5.1.0.6 or lower, indicating the vulnerable version is installed
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Check web interface accessibilityAttempt to access the web interface port (default HTTP port 443 or 8443) on the server where Firewall Reporter is installed using curl or a browser: curl -k https://<server>/Affected if Web interface responds and is reachable from network, indicating exposure to remote attackers
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Verify cookie-based authentication is in useSend an HTTP request to the web interface without cookies and observe if authentication can be bypassed by examining response headers and behaviorAffected if Unauthenticated requests to the web interface succeed without proper authentication challenges, indicating the vulnerability is present
The environment is affected if McAfee Firewall Reporter version 5.1.0.6 or lower is installed with its web interface accessible over the network, allowing unauthenticated attackers to bypass cookie authentication.
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 to McAfee Firewall Reporter 5.1.0.13 or later to obtain the fixed cookie authentication implementation, and restrict network access to the web interface until the patch is applied.
- Consultation2.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2011-5100 — 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-2011-5100 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
- No spam, self-promotion, credentials, or personal data