SB2018101010 - Security restrictions bypass in Microsoft Windows Device Guard
Published: October 10, 2018
Security Bulletin ID
SB2018101010
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) Code injection (CVE-ID: CVE-2018-8492)
CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local attacker to bypass security restrictions on the target system.
The vulnerability exists due to an error when PowerShell exposes functions and processes user supplied code. A local attacker can inject code into a trusted PowerShell session to bypass the Device Guard Code Integrity policy on the local machine.
Remediation
Install update from vendor's website.