#VU21009 Insufficient verification of data authenticity in Windows and Windows Server - CVE-2019-1235
Published: September 10, 2019
Vulnerability identifier: #VU21009
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-1235
CWE-ID: CWE-345
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Windows
Windows Server
Windows
Windows Server
Software vendor:
Microsoft
Microsoft
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due insufficient validation of input data origin within the Windows Text Service Framework (TSF) server, sent through a malicious Input Method Editor (IME). A local user can run a specially crafted application and escalate privileges on the system.
Successful exploitation of the vulnerability requires that IME is installed on the system.
Remediation
Install updates from vendor's website.