CVE-2023-31424
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 · uneditedBrocade SANnav Web interface before Brocade SANnav v2.3.0 and v2.2.2a allows remote unauthenticated users to bypass web authentication and authorization.
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 confidenceA pre-authentication bypass vulnerability in the Brocade SANnav web interface allows remote unauthenticated attackers to completely bypass the authentication mechanism and gain unauthorized administrative access to the SAN management system.
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< 2.2.2aCVSS 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
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 SANnav installationCheck if Broadcom Brocade SANnav is deployed in your environment. This is typically installed on a Linux or Windows server as a management application for Fibre Channel SANs. Look for the SANnav service/process or the web application listening on its default ports (8080, 8443).Affected if SANnav is not installed in your environment, you are not affected.
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Identify SANnav versionAccess the SANnav web interface and navigate to the About or Help section to view the installed version number. Alternatively, check the installation directory for version files or use the SANnav command-line interface if available.Affected if The version displayed is less than 2.2.2a (for example, 2.2.0, 2.1.x, or earlier).
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Verify web interface accessibilityConfirm that the SANnav web interface ports (typically 8080 for HTTP or 8443 for HTTPS) are listening and reachable from your network. Use netstat or similar tools on the SANnav server to check for these ports.Affected if The web interface is exposed to network access without proper segmentation or firewall controls.
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Compare version against affected rangeDocument the exact version number found in step 2 and compare it against the affected range: any version below 2.2.2a is vulnerable.Affected if Your installed version is below 2.2.2a, placing it within the vulnerable range.
You are affected if Broadcom Brocade SANnav is installed in your environment and the installed version is below 2.2.2a, as this version range contains the pre-authentication bypass flaw in the web interface.
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.
dbcve · scoped2.2.2a
Upgrade Brocade SANnav to version 2.3.0 or 2.2.2a or later to remediate the authentication bypass vulnerability.
Brocade SANnav v2.2.2a or v2.3.0
- 1. Log in to Broadcom Support Portal at support.broadcom.com
- 2. Navigate to Brocade SANnav product downloads
- 3. Download Brocade SANnav version 2.2.2a or version 2.3.0
- 4. Review installation documentation for upgrade prerequisites
- 5. Back up the current SANnav configuration
- 6. Run the installer to upgrade the SANnav installation
- 7. Verify the web interface is accessible and the version reflects the upgrade
- 8. Confirm the authentication bypass vulnerability is resolved by testing web login
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-31424 — 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-2023-31424 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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- 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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