Advisory Details

June 21st, 2024

(Pwn2Own) Sony XAV-AX5500 CarPlay TLV Stack-based Buffer Overflow Remote Code Execution Vulnerability

ZDI-24-877
ZDI-CAN-23238

CVE ID CVE-2024-23933
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 implementation of the Apple CarPlay protocol. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. 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 Midnight Blue / PHP Hooligans
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