Check Point Advisories

Microsoft Outlook Embedded OLE Object (MS15-131: CVE-2015-6172)

Vulnerability
Protection

Check Point Reference:	CPAI-2015-1336
Date Published:	8 Dec 2015
Severity:	N/A
Last Updated:	Tuesday 23 February, 2016
Source:	Microsoft MS15-131
Industry Reference:	CVE-2015-6172
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Microsoft Word 2007 Service Pack 3 Microsoft Word 2010 Service Pack 2 (32-bit editions) Microsoft Word 2010 Service Pack 2 (64-bit editions) Microsoft Word 2013 Service Pack 1 (32-bit editions) Microsoft Word 2013 Service Pack 1 (64-bit editions) Microsoft Word 2016 (32-bit edition) Microsoft Word 2016 (64-bit edition) Microsoft Word 2013 RT Service Pack 1 Microsoft Office 2010 Service Pack 2
Vulnerability Description	A sandbox bypass vulnerability, known as BadWinMail, exists in Microsoft Outlook. The vulnerability is due to the support provided by Outlook for two file formats that are being parsed automatically by Outlook which does not run under a sandbox and has medium integrity level. A remote attacker can exploit this issue by sending an e-mail to a target victim containing a specially crafted attachment which embeds an OLE object that leverages a second vulnerability in any another registered OLE software.
Update/Patch Avaliable	Apply patches from: MS15-131

Protection Overview

This protection will detect and block mail messages containing embedded OLE objects.

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 Embedded OLE Object (MS15-131: CVE-2015-6172) 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 Embedded OLE Object (MS15-131: CVE-2015-6172)