Advisory Details

June 21st, 2024

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

ZDI-24-874
ZDI-CAN-22939

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
  • 2024-08-15 - Advisory Updated
CREDIT Tobias Scharnowski (@ScepticCTF), Felix Buchmann
BACK TO ADVISORIES