Advisory Details

This vulnerability allows local attackers to escalate privileges on affected installations of Wacom Drivers for Windows. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the handling of the WacomInstallI.txt file by the PrefUtil.exe utility. The issue results from incorrect permissions on the WacomInstallI.txt file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.

07/08/22 – ZDI reported the vulnerability to the vendor.

01/26/23 – ZDI asked for an update.

03/02/23 – ZDI asked for an update.

05/23/23 – The ZDI informed the vendor that the case will be published as a zero-day advisory on 05/26/23.

-- Mitigation: Given the nature of the vulnerability, the only salient mitigation strategy is to restrict interaction with the application.

• 2022-07-08 - Vulnerability reported to vendor
• 2023-05-26 - Coordinated public release of advisory