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Fabric Operating SystemOperating system · Broadcom

CVE-2024-7517

HIGH · 7.8 CVSS v3.1 Published 2024-11-21
Fix available
A fix is available. Upgrade to after 9.2.1a or later.
See remediation →
80/100
Remediation priority · High
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
A command injection vulnerability in Brocade Fabric OS before 9.2.0c, and 9.2.1 through 9.2.1a on IP extension platforms could allow a local authenticated attacker to perform a privileged escalation via crafted use of the portcfg command. This specific exploitation is only possible on IP Extension platforms: Brocade 7810, Brocade 7840, Brocade 7850 and on Brocade X6 or X7 directors with an SX-6 Extension blade installed. The attacker must be logged into the switch via SSH or serial console to conduct the attack.

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 confidence

A command injection vulnerability in Brocade Fabric OS allows local authenticated attackers to perform privilege escalation through crafted use of the portcfg command on IP extension platforms (Brocade 7810, 7840, 7850, and X6/X7 directors with SX-6 Extension blades). The attacker requires SSH or serial console access to the switch.

MitigationUpgrade Brocade Fabric OS to version 9.2.0c or later (for 9.2.x branch) or to a version beyond 9.2.1a to remediate this vulnerability.

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:<= 9.2.0c>= 9.2.1, <= 9.2.1a

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
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/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 checks

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

  1. Identify the Fabric OS version
    Log into the switch via SSH or serial console and run the command 'version' or 'firmwareShow' to display the installed Brocade Fabric OS version
    Affected if The displayed version is 9.2.0, 9.2.0a, 9.2.0b, 9.2.0c, 9.2.1, or 9.2.1a
  2. Confirm the hardware platform
    Run the command 'chassisName' or 'slotShow' to identify the specific Brocade model. Check if the device is one of: 7810, 7840, 7850, or an X6/X7 director with an SX-6 Extension blade
    Affected if The hardware is an IP extension platform (7810, 7840, 7850, or X6/X7 with SX-6) AND the version from step 1 is in the affected list
  3. Verify IP extension is enabled
    Run the command 'portcfgshow' or check the extension blade status using 'extnngcfgShow' or 'extensionList' to determine if IP extension functionality is configured and active
    Affected if IP extension features are enabled on the affected hardware platform with a vulnerable version

You are affected if you are running Fabric OS version 9.2.0 through 9.2.0c or 9.2.1 through 9.2.1a on an IP extension platform (7810, 7840, 7850, or X6/X7 with SX-6 blade) with extension features enabled.

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 a release after 9.2.1a
Interim mitigation

Upgrade Brocade Fabric OS to version 9.2.0c or later (for 9.2.x branch) or to a version beyond 9.2.1a to remediate this vulnerability.

Recommended fix High confidence

Fabric OS 9.2.2 or later

  1. 1. Identify the exact Fabric OS version running on the affected device using the 'version' command
  2. 2. Confirm the hardware platform is an IP Extension platform: Brocade 7810, 7840, 7850, or X6/X7 director with SX-6 Extension blade
  3. 3. Download Fabric OS version 9.2.2 or later from the Broadcom Support Portal (support.broadcom.com)
  4. 4. Upload the firmware to the switch using the 'firmwareDownload' command or via Web Tools/EFM
  5. 5. Verify the upgrade was successful by running 'version' and confirming the new version is > 9.2.1a
  6. 6. Validate that the portcfg command behaves normally and the command injection vulnerability is resolved
Caveat Standard FOS upgrade procedures apply; ensure backup of configuration before upgrading; some legacy features may require reconfiguration after upgrade

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
  • Implementation3.0 h
  • Testing4.0 h
  • Review / QA2.0 h
13.0 hours of engineering $2,300
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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-2024-7517 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