Check Point Advisories

Microsoft Internet Explorer Security Feature Bypass (CVE-2017-8625)

Vulnerability
Protection

Check Point Reference:	CPAI-2017-0589
Date Published:	8 Aug 2017
Severity:	Medium
Last Updated:	Tuesday 05 September, 2017
Source:	Microsoft CVE-2017-8625
Industry Reference:	CVE-2017-8625
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Internet Explorer 11 on Windows 10 for 32-bit Systems Internet Explorer 11 on Windows 10 for x64-based Systems Internet Explorer 11 on Windows 10 Version 1511 for x64-based Systems Internet Explorer 11 on Windows 10 Version 1511 for 32-bit Systems Internet Explorer 11 on Windows Server 2016 Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems
Vulnerability Description	A security feature bypass vulnerability exists in Microsoft Internet Explorer. The vulnerability is due to Internet Explorer fails to validate User Mode Code Integrity (UMCI) policies. A remote attacker can exploit this issue by enticing a user to open a specially crafted web-page with an affected version of Internet Explorer.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75

In the IPS tab, click Protections and find the Microsoft Internet Explorer Security Feature Bypass (CVE-2017-8625) protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Web Client Enforcement Violation.
Attack Information: Microsoft Internet Explorer Security Feature Bypass (CVE-2017-8625)