SB2020041427 - Privilege escalation in Microsoft Windows Scheduled Task
Published: April 14, 2020
Security Bulletin ID
SB2020041427
CSH 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 vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-0936)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the way Windows scheduled task handles file redirections. A local user can create a malicious application, launch it on the system and delete a targeted file they would not have permissions to.
To exploit this vulnerability, an attacker would first have to log on to the system.
Remediation
Install update from vendor's website.