Microsoft Windows Text Service Framework CVE-2019-1235 Elevation of Privilege Vulnerability

Description

An elevation of privilege vulnerability exists in Windows Text Service Framework (TSF) when the TSF server process does not validate the source of input or commands it receives. An attacker who successfully exploited this vulnerability could inject commands or read input sent through a malicious Input Method Editor (IME). This only affects systems that have installed an IME. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system. The security update addresses this vulnerability by correcting how the TSF server and client validate input from each other.

Affected Applications

Windows RT 8.1
Windows Server version 1903 (Server Core installation)
Windows Server 2016
Windows Server version 1803 (Server Core Installation)
Windows Server 2012
Windows 8
Windows 7
Windows 10
Windows Server 2008
Windows Server 2019

CVE References

Other References