SB2021071324 - Privilege escalation in Microsoft Windows InstallService



SB2021071324 - Privilege escalation in Microsoft Windows InstallService

Published: July 13, 2021

Security Bulletin ID SB2021071324
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-31961)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions in Windows InstallService. A local user can delete targeted files on the system.


Remediation

Install update from vendor's website.