SB2017121215 - Information disclosure in its:// protocol handler in Microsoft Windows

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Main Vulnerability Database SB2017121215

SB2017121215 - Information disclosure in its:// protocol handler in Microsoft Windows

Published: December 12, 2017 Updated: January 10, 2019

Security Bulletin ID SB2017121215
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Information disclosure (CVE-ID: CVE-2017-11927)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: 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/E:U/U:Green


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.

References