SB2017080806 - Privilege escalation in Windows IME
Published: August 8, 2017
Security Bulletin ID
SB2017080806
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper input validation (CVE-ID: CVE-2017-8591)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 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
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.
Remediation
Install update from vendor's website.