CVE-2023-50810 — In certain Sonos products before Sonos S1 Release 11

In certain Sonos products before Sonos S1 Release 11.12 and S2 release 15.9, a vulnerability exists in the U-Boot component of the firmware that allow persistent arbitrary code execution with Linux kernel privileges. A failure to correctly handle the return value of the setenv co

01What is this vulnerability?

In certain Sonos products before Sonos S1 Release 11.12 and S2 release 15.9, a vulnerability exists in the U-Boot component of the firmware that allow persistent arbitrary code execution with Linux kernel privileges. A failure to correctly handle the return value of the setenv command can be used to override the kernel command-line parameters and ultimately bypass the Secure Boot implementation…

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2024-08-09T00:00:00.000Z
• Last modified: 2024-08-23T15:01:15.550Z

09References

• www.sonos.com — https://www.sonos.com/en-us/security-advisory-2024-0001