(Pwn2Own) Sony XAV-AX5500 USB Configuration Descriptor Buffer Overflow Remote Code Execution Vulnerability
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 USB host driver. A crafted USB configuration descriptor can trigger an overflow of a fixed-length 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
- 2024-08-15 - Advisory Updated
Credit
Synacktiv (@Synacktiv)
