Check Point Advisories

Microsoft Office Memory Corruption (MS16-107: CVE-2016-3358)

Check Point Reference: CPAI-2016-0749
Date Published: 13 Sep 2016
Severity: High
Last Updated: Tuesday 13 September, 2016
Source: Microsoft MS16-107
Industry Reference:CVE-2016-3358
Protection Provided by:

Security Gateway
R81, R80, R77, R75

Who is Vulnerable? Microsoft Excel 2007 Service Pack 3
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[1] (3118284)
Microsoft Excel 2016 (32-bit edition)
Microsoft Excel 2016 (64-bit edition)
Microsoft Office Compatibility Pack Service Pack 3
Microsoft Excel Viewer
Excel Services on Microsoft SharePoint Server 2007 Service Pack 3 (32-bit editions)
Excel Services on Microsoft SharePoint Server 2007 Service Pack 3 (64-bit editions)
Microsoft SharePoint Server 2013 Service Pack 1
Excel Automation Services on Microsoft SharePoint Server 2013 Service Pack 1
Vulnerability Description A remote code execution vulnerability exists in Microsoft Office. The vulnerability is due to an error in the way Microsoft Office improperly handles objects in memory while parsing specially crafted files. A remote attacker can exploit this issue by enticing a victim to open a specially crafted file.
Update/Patch AvaliableApply patches from: MS16-107

Protection Overview

This protection detects 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

  1. In the IPS tab, click Protections and find the Microsoft Office Memory Corruption (MS16-107: CVE-2016-3358) protection using the Search tool and Edit the protection's settings.
  2. 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 (MS16-107: CVE-2016-3358)

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