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Fabric Operating SystemOperating system · Broadcom

CVE-2022-33181

MEDIUM · 5.5 CVSS v3.1 Published 2022-10-25
Fix available
A fix is available. Upgrade to 7.4.2.j / 8.2.3c or later.
See remediation →
57/100
Remediation priority · Elevated
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
An information disclosure vulnerability in Brocade Fabric OS CLI before Brocade Fabric OS v9.1.0, 9.0.1e, 8.2.3c, 8.2.0cbn5, 7.4.2.j could allow a local authenticated attacker to read sensitive files using switch commands “configshow” and “supportlink”.

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

A local authenticated attacker with standard user access can exploit the configshow and supportlink commands in Brocade Fabric OS CLI to read sensitive system files that should be restricted, due to improper access control enforcement in these diagnostic commands.

MitigationUpgrade Brocade Fabric OS to version 9.1.0, 9.0.1e, 8.2.3c, 8.2.0cbn5, or 7.4.2.j (or later) to remediate the vulnerability. Limit CLI access to trusted personnel only until upgrade is possible.

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
Fabric Operating SystemOperating system
Affected:< 7.4.2.j>= 8.0.0, < 8.2.3c>= 9.0.0, < 9.0.1e= 9.1.0

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
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:L/AC:L/PR:L/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. Check Fabric OS version
    Log into the Brocade Fabric OS CLI and run the command: `version` or `firmwareShow`
    Affected if The displayed version falls within these vulnerable ranges: < 7.4.2.j, 8.0.0 to 8.2.3c (excluding 8.2.3c), 9.0.0 to 9.1.0 (excluding 9.0.1e), or exactly 9.1.0
  2. Verify user role
    Confirm your current CLI user role by running: `userconfig --show` or ` roles`
    Affected if You are logged in as a standard or non-admin user (not root or admin role)
  3. Test configshow command access
    As a standard user, run: `configshow`
    Affected if The command executes and displays system configuration files or sensitive content that should be restricted to admin users
  4. Test supportlink command access
    As a standard user, run: `supportlink`
    Affected if The command executes and reveals sensitive system files or paths that standard users should not be able to access

If the Fabric OS version is in the affected list AND standard users can successfully run configshow or supportlink to access restricted files, the environment is vulnerable to CVE-2022-33181.

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.

dbcve · scoped
Upgrade available Upgrade to 7.4.2.j / 8.2.3c / 9.0.1e or later
Fixed in 7.4.2.j8.2.3c9.0.1e
Interim mitigation

Upgrade Brocade Fabric OS to version 9.1.0, 9.0.1e, 8.2.3c, 8.2.0cbn5, or 7.4.2.j (or later) to remediate the vulnerability. Limit CLI access to trusted personnel only until upgrade is possible.

Recommended fix High confidence

Upgrade to Fabric OS 9.0.1e, 8.2.3c, or a version after 9.1.0 (e.g., latest stable 9.x release)

  1. 1. Identify the current Fabric OS version using the 'version' or 'firmwareShow' command
  2. 2. Review the upgrade path and compatibility matrix in the Brocade Fabric OS migration guide
  3. 3. Download the appropriate fixed firmware version (7.4.2.j, 8.2.3c, 8.2.0cbn5, 9.0.1e, or a version after 9.1.0) from the Broadcom support portal
  4. 4. Back up the current switch configuration using 'configUpload' or 'configBackup'
  5. 5. Upgrade the Fabric OS firmware using the 'firmwareDownload' command following the standard Brocade firmware upgrade procedure
  6. 6. Verify the upgrade completed successfully and the new version is running
  7. 7. Confirm the vulnerability is remediated by verifying that 'configshow' and 'supportlink' commands no longer expose sensitive files
Caveat Review release notes for any command behavior changes or configuration requirements between versions; ensure compatibility with connected fabric devices before upgrading

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Fabric Operating System Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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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-2022-33181 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
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data