Check Point Advisories

Microsoft Excel DLL Remote Code Execution (MS15-070; CVE-2015-2378)

Vulnerability
Protection

Check Point Reference:	CPAI-2015-0824
Date Published:	14 Jul 2015
Severity:	High
Last Updated:	Tuesday 14 July, 2015
Source:	Microsoft MS15-070
Industry Reference:	CVE-2015-2378
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Microsoft Excel 2007 Service Pack 3 Microsoft Excel 2010 Service Pack 2 (32-bit editions) Microsoft Excel 2010 Service Pack 2 (64-bit editions) Microsoft Excel Viewer 2007 Service Pack 3 Microsoft Office Compatibility Pack Service Pack 3
Vulnerability Description	A remote code execution vulnerability exists in Microsoft Excel. The vulnerability is due to the way that Microsoft Excel improperly handles the loading of dynamic link library (DLL) files. An attacker could trigger this flaw by convincing a victim to load a malicious DLL file.
Update/Patch Avaliable	Apply patches from: MS15-070

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 Excel DLL Remote Code Execution (MS15-070) 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 Excel DLL Remote Code Execution (MS15-070)