CVE-2023-27353: (Pwn2Own) Sonos One Speaker msprox Endpoint Out-Of-Bounds Read Information Disclosure Vulnerability
This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Sonos One Speaker 70.3-35220. Authentication is not required to exploit this vulnerability. The specific flaw exists within the msprox endpoint. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-19846.
Other sources
This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Sonos One Speaker. Authentication is not required to exploit this vulnerability. The specific flaw exists within the msprox endpoint. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2023-27353?
CVE-2023-27353 is considered a critical vulnerability due to its potential for unauthorized information disclosure.
How do I fix CVE-2023-27353?
To mitigate CVE-2023-27353, you should upgrade your Sonos One Speaker to the latest firmware version that addresses this vulnerability.
What kind of attackers can exploit CVE-2023-27353?
CVE-2023-27353 can be exploited by network-adjacent attackers without the need for authentication.
Which devices are affected by CVE-2023-27353?
CVE-2023-27353 affects installations of the Sonos One Speaker running firmware version 70.3-35220.
What information can be disclosed due to CVE-2023-27353?
CVE-2023-27353 allows attackers to potentially disclose sensitive information from affected Sonos devices.