SB2019100917 - Privilege escalation in Microsoft Windows CloudStore
Published: October 9, 2019
Security Bulletin ID
SB2019100917
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-1321)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the way Windows CloudStore handles file Discretionary Access Control List (DACL). A local user can create a malicious application, launch it on the system, overwrite a targeted file leading to an elevated status and take control of an affected system.
To exploit this vulnerability, an attacker would first have to log on to the system.
Remediation
Install update from vendor's website.