Check Point Advisories

Microsoft Outlook for Mac Spoofing (MS15-116: CVE-2015-6123)

Vulnerability
Protection

Check Point Reference:	CPAI-2015-1294
Date Published:	10 Nov 2015
Severity:	High
Last Updated:	Wednesday 30 March, 2016
Source:
Industry Reference:	CVE-2015-6123
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Microsoft Excel for Mac 2011 Microsoft Excel 2016 for Mac
Vulnerability Description	A spoofing vulnerability has been reported in Microsoft outlook for Mac. The vulnerability is due to an error in Microsoft Office Outlook that fail to sanitize html input or treat it in a safe manner. A remote attacker can exploit this vulnerability by sending HTML e-mails to victims with content that redirects them to another web site.

Protection Overview

This protection will detect and block 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 Outlook for Mac Spoofing (MS15-116: CVE-2015-6123) 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 Outlook for Mac Spoofing (MS15-116: CVE-2015-6123)