SB2017121215 - Information disclosure in its:// protocol handler in Microsoft Windows
Published: December 12, 2017 Updated: January 10, 2019
Security Bulletin ID
SB2017121215
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Information disclosure (CVE-ID: CVE-2017-11927)
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.
Remediation
Install update from vendor's website.