SB2017111426 - Signature verification bypass in Microsoft Device Guard
Published: November 14, 2017
Security Bulletin ID
SB2017111426
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Security feature bypass (CVE-ID: CVE-2017-11830)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
The vulnerability allows a remote attacker to bypass certain security restrictions.
The vulnerability exists when Device Guard incorrectly validates an untrusted file. A remote attacker can make an unsigned file appear to be signed and trusted and trick the victim into executing it.
Remediation
Install update from vendor's website.