CVE-2023-27354: (Pwn2Own) Sonos One Speaker libsmb2 Integer Overflow 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 processing of the SMB directory query command. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before reading from memory. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-19727.
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 processing of the SMB directory query command. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before reading from memory. 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-2023-27354?
CVE-2023-27354 has been classified as a medium severity vulnerability.
How do I fix CVE-2023-27354?
To mitigate CVE-2023-27354, users should update their Sonos One Speaker firmware to the latest version available.
What does CVE-2023-27354 affect?
CVE-2023-27354 affects Sonos One Speaker running firmware version 70.3-35220.
Can CVE-2023-27354 be exploited without authentication?
Yes, CVE-2023-27354 can be exploited without requiring authentication.
What type of information can be disclosed due to CVE-2023-27354?
CVE-2023-27354 allows attackers to disclose sensitive information from the affected Sonos One Speaker.