(Pwn2Own) Sony XAV-AX8500 Bluetooth Improper Isolation Authentication Bypass Vulnerability
Vulnerability Details
This vulnerability allows network-adjacent attackers to bypass authentication on affected Sony XAV-AX8500 devices. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the implementation of ACL-U links. The issue results from the lack of L2CAP channel isolation. An attacker can leverage this vulnerability to bypass authentication on the system.
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-ax8500/software/00344092
Disclosure Timeline
- 2025-01-30 - Vulnerability reported to vendor
- 2025-06-11 - Coordinated public release of advisory
- 2025-06-11 - Advisory Updated
Credit
Mikhail Evdokimov (@konatabrk) from PCAutomotive
