TR-VISION HOME local privilege escalation in WFanManager.sys driver

Description

A vulnerability has been found in rmalright TR-VISION HOME 2.0.5. Impacted is the function sub_11504 in the library WFanManager.sys of the component IOCTL Handler. Such manipulation leads to incorrect default permissions. The attack must be carried out locally. The vendor was contacted early about this disclosure but did not respond in any way.