Improper input validation in Windows and Windows Server - CVE-2017-8591

 

Improper input validation in Windows and Windows Server - CVE-2017-8591

Published: August 8, 2017 / Updated: August 8, 2017


Vulnerability identifier: #VU7723
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-8591
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Microsoft
Affected software:
Windows
Windows Server

Detailed vulnerability description

The vulnerability allows a local user to execute arbitrary code with elevated privileges.

The vulnerability exists due to an error in Windows Input Method Editor (IME) when IME improperly handles parameters in a method of a DCOM class. A local user can instantiate the DCOM class and execute arbitrary code with elevated privileges.


How to mitigate CVE-2017-8591

Install updates from vendor's website.

Sources