Check Point Advisories

Microsoft Office Memory Corruption (MS15-116: CVE-2015-6093)

Vulnerability
Protection

Check Point Reference:	CPAI-2015-1276
Date Published:	10 Nov 2015
Severity:	High
Last Updated:	Tuesday 10 November, 2015
Source:	Microsoft MS15-116
Industry Reference:	CVE-2015-6093
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Microsoft Office 2007 Service Pack 3 Microsoft Office 2010 Service Pack 2 (32-bit editions) Microsoft Office 2010 Service Pack 2 (64-bit editions) Microsoft Office 2013 Service Pack 1 (32-bit editions) Microsoft Office 2013 Service Pack 1 (64-bit editions) Microsoft Office 2013 RT Service Pack 1 Microsoft Word 2013 RT Service Pack 1 Microsoft Office 2016 (32-bit edition) Microsoft Office 2016 (64-bit edition) Word Automation Services on Microsoft SharePoint Server 2010 Service Pack 2 Word Automation Services on Microsoft SharePoint Server 2013 Service Pack 1 Microsoft Office Web Apps 2010 Service Pack 2 Microsoft Office Web Apps Server 2013 Service Pack 1
Vulnerability Description	A remote code execution vulnerability exists in Microsoft Office. The vulnerability is caused when the Office software fails to properly validate templates. A remote attacker can exploit this issue by enticing a victim to open a specially crafted file.
Update/Patch Avaliable	Apply patches from: MS15-116

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-2015-6093) 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 Office Memory Corruption (MS15-116: CVE-2015-6093)