Advisory Details

February 10th, 2022

(Pwn2Own) Sonos One Speaker ALAC Frame Parser Stack-based Buffer Overflow Remote Code Execution Vulnerability

ZDI-22-261
ZDI-CAN-15798

CVE ID CVE-2022-24049
CVSS SCORE 9.8, AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS Sonos
AFFECTED PRODUCTS One Speaker
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Sonos One Speaker. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the ALAC audio codec. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root.
ADDITIONAL DETAILS

Fixed in S2 software version 13.4.1 or later and S1 software version 11.2.13 build 57923290 or later.
DISCLOSURE TIMELINE
  • 2021-12-08 - Vulnerability reported to vendor
  • 2022-02-10 - Coordinated public release of advisory
  • 2022-02-14 - Advisory Updated
CREDIT David BERARD (@_p0ly_) from @Synacktiv
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