Check Point Advisories

Microsoft Office Memory Corruption (MS15-116: CVE-2015-6094)

Vulnerability
Protection

Check Point Reference:	CPAI-2015-1280
Date Published:	10 Nov 2015
Severity:	High
Last Updated:	Tuesday 10 November, 2015
Source:
Industry Reference:	CVE-2015-6094
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Microsoft Excel 2010 Service Pack 2 (32-bit editions) Microsoft Excel 2010 Service Pack 2 (64-bit editions) Microsoft Excel 2013 Service Pack 1 (32-bit editions) Microsoft Excel 2013 Service Pack 1 (64-bit editions) Microsoft Excel 2013 RT Service Pack 1 Microsoft Excel 2016 (32-bit edition) Microsoft Excel 2016 (64-bit edition) Microsoft Excel for Mac 2011 Microsoft Excel 2016 for Mac Excel Services on Microsoft SharePoint Server 2013 Service Pack 1 Microsoft Excel Web App 2010 Service Pack 2 Microsoft Excel Web App 2013 Service Pack 1
Vulnerability Description	A use-after-free vulnerability exists in Microsoft Excel. A remote attacker could use this vulnerability by sending a specially crafted Excel spreadsheet. Successful exploitation of this issue may allow execution of arbitrary code on a vulnerable system.

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 Office Memory Corruption (MS15-116: CVE-2015-6094) 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: Content Protection Violation.
Attack Information: Microsoft Office Memory Corruption (MS15-116: CVE-2015-6094)