Check Point Advisories

Microsoft Edge Security Feature Bypass (MS17-007: CVE-2017-0140)

Vulnerability
Protection

Check Point Reference:	CPAI-2017-0181
Date Published:	14 Mar 2017
Severity:	High
Last Updated:	Tuesday 14 March, 2017
Source:	Microsoft MS17-007
Industry Reference:	CVE-2017-0140
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Windows 10 Version 1511 for 32-bit Systems Windows 10 Version 1511 for x64-based Systems Windows 10 Version 1607 for 32-bit Systems Windows 10 Version 1607 for x64-based Systems Windows 10 for 32-bit Systems Windows 10 for x64-based Systems Windows Server 2016 for x64-based Systems
Vulnerability Description	Security feature bypass exists in Microsoft Edge. The vulnerability is due to a breach in the way Microsoft Edge implements SOP (Same Origin Policy) for HTML elements present in other browser windows. A remote attacker could exploit this vulnerability by enticing a user to visit a maliciously crafted web-page. Successful exploitation of this vulnerability would allow an attacker to bypass the same origin policy and disclose sensitive information.
Update/Patch Avaliable	Apply patches from: MS17-007

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 Edge Security Feature Bypass (MS17-007: CVE-2017-0140) 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 Edge Security Feature Bypass (MS17-007: CVE-2017-0140)