SB2019072403 - Seccurity restrictions bypass in System Management Automation for PowerShell



SB2019072403 - Seccurity restrictions bypass in System Management Automation for PowerShell

Published: July 24, 2019

Security Bulletin ID SB2019072403
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Improper access control (CVE-ID: CVE-2019-1167)

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.