CVE-2024-5267 Sonos Era 100 SMB2 Message Handling Out-Of-Bounds Write Remote Code Execution Vulnerability

High 8.8 Published 6 Jun 2024 Updated 1 Aug 2024

Network-adjacent attackers can execute arbitrary code with root privileges on Sonos Era 100 speakers via SMB2 message handling flaws.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2024-5267?

CVE-2024-5267 is a high-severity memory corruption vulnerability in Sonos Era 100, published on 6 Jun 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Sonos Era 100 SMB2 Message Handling Out-Of-Bounds Write Remote Code Execution Vulnerability. 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 proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-22384.

Weakness: CWE-787

Which versions are affected by CVE-2024-5267?

It affects 1 product.

Products include Sonos Era 100 Firmware.

How do I fix CVE-2024-5267?

No fix has been published for CVE-2024-5267 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2024-5267 being exploited?

There is no known exploitation of CVE-2024-5267 in the wild and no public exploit code.

Sources

Also known as GHSA-w55c-vqmf-7cp2.