Advisory Details

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Sonos Era 100 smart speakers. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the handling of SMB2 messages. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of root.

Sonos users with the S2 app installed should ensure their system is running software version 16.0 or later. Users can check which software version they are running in the Sonos app > Settings > System > About My System. https://support.sonos.com/en-us/article/release-notes-for-sonos-s2

• 2023-11-09 - Vulnerability reported to vendor
• 2024-05-31 - Coordinated public release of advisory
• 2024-07-01 - Advisory Updated