SB2017121208 - Security Feature Bypass in Windows Device Guard
Published: December 12, 2017
Security Bulletin ID
SB2017121208
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Security feature bypass (CVE-ID: CVE-2017-11899)
The vulnerability allows a remote attacker to bypass certain security restrictions.The vulnerability exists due to Device Guard fails to correctly validate untrusted files. A remote attacker can create a specially crafted file and make an unsigned file appear to be signed. Since the Device Guard relies on the signature to determine the file is non-malicious, Device Guard could then allow a malicious file to execute.
Remediation
Install update from vendor's website.