SB2019071606 - Security restrictions byspass in Windows Defender Application Control (WDAC)
Published: July 16, 2019 Updated: August 14, 2019
Security Bulletin ID
SB2019071606
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper access control (CVE-ID: CVE-2019-1167)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local attacker to gain unauthorized access to sensitive information.
The vulnerability exists due to improper access restrictions in Windows Defender Application Control (WDAC). A local administrator can bypass WDAC enforcement, circumvent PowerShell Core Constrained Language Mode on the machine and access resources in an unintended way.
Remediation
Install update from vendor's website.