SB2020071447 - Privilege escalation in Microsoft Windows Lockscreen
Published: July 14, 2020
Security Bulletin ID
SB2020071447
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Physical access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2020-1398)
The vulnerability allows a local attacker to escalate privileges on the system.
The vulnerability exists due to a boundary error when Windows Lockscreen fails to properly handle Ease of Access dialog. An attacker with physical access can trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.