Information disclosure in Microsoft Windows and Windows Server - CVE-2017-11927
Published: December 12, 2017 / Updated: December 12, 2017
Vulnerability identifier: #VU9649
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-11927
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to obtain potentially sensitive information.
The vulnerability exists due to an error in implementation, when the Windows "its://" protocol handler unnecessarily sends traffic to a remote site in order to determine the zone of a provided URL. A remote attacker can create a specially crafted web page, trick the victim into opening it and obtain potentially sensitive information, such as NTLM hash.
Affected software
Microsoft Windows
Windows Server
Windows Server
How to mitigate CVE-2017-11927
Install updates from vendor's website.