Advisory Details

June 21st, 2024

(Pwn2Own) Sony XAV-AX5500 Insufficient Firmware Update Validation Remote Code Execution Vulnerability

CVE ID	CVE-2024-23922
CVSS SCORE	6.8, AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS	Sony
AFFECTED PRODUCTS	XAV-AX5500
VULNERABILITY DETAILS	This vulnerability allows physically present attackers to execute arbitrary code on affected installations of Sony XAV-AX5500 devices. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of software updates. The issue results from the lack of proper validation of software update packages. An attacker can leverage this vulnerability to execute code in the context of the device.
ADDITIONAL DETAILS	Sony has issued an update to correct this vulnerability. More details can be found at: https://www.sony.com/electronics/support/mobile-cd-players-digital-media-players-xav-series/xav-ax5500/software/00274156
DISCLOSURE TIMELINE	2024-02-02 - Vulnerability reported to vendor 2024-06-21 - Coordinated public release of advisory 2024-07-01 - Advisory Updated
CREDIT	Tobias Scharnowski (@ScepticCTF), Felix Buchmann

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