What it is about

Fabric OS (FOS) ist ein Betriebssystem für FibreChannel Switches. Ein Angreifer kann mehrere Schwachstellen in Broadcom Fabric OS ausnutzen, um beliebigen Programmcode auszuführen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren und um Sicherheitsvorkehrungen zu umgehen.

Under what conditions?

The BSI does not name any particular preconditions. Exploitable remotely according to the BSI.

What can happen in the worst case

An attacker could use the vulnerability to

• beliebigen Programmcode auszuführen
• einen Denial of Service Angriff durchzuführen
• Informationen offenzulegen
• Dateien zu manipulieren
• Sicherheitsvorkehrungen zu umgehen

Am I affected?

Affected according to the BSI:

• Broadcom Fabric OS <10.0.1

The installed version is usually shown under “Help → About” or in the device’s admin interface.

What helps?

Update to at least:

• Broadcom Fabric OS 10.0.1

Is the vulnerability already being exploited?

None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.