SB2017091234 - Security restrictions bypass in Device Guard in Windows
Published: September 12, 2017
Security Bulletin ID
SB2017091234
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Physical access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Security restrictions bypass (CVE-ID: CVE-2017-8746)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:P/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 in Device Guard. A local attacker can inject code into a trusted PowerShell process that is trusted by the Code Integrity policy and bypass the Device Guard Code Integrity policy on the local machine.
Remediation
Install update from vendor's website.