Security feature bypass in Windows and Windows Server - CVE-2017-11899
Published: December 12, 2017 / Updated: December 12, 2017
Vulnerability identifier: #VU9629
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-11899
CWE-ID: CWE-310
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Windows
Windows Server
Windows
Windows Server
Detailed vulnerability description
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.
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.
How to mitigate CVE-2017-11899
Install updates from vendor's website.