Check Point Advisories

Microsoft Office Memory Corruption (MS16-133: CVE-2016-7231)

Check Point Reference: CPAI-2016-0982
Date Published: 8 Nov 2016
Severity: High
Last Updated: Tuesday 08 November, 2016
Source: Microsoft MS16-133
Industry Reference:CVE-2016-7231
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? Microsoft Excel 2007 Service Pack 3
Microsoft Excel for Mac 2011
Microsoft Office Compatibility Pack Service Pack 3
Microsoft Excel Viewer
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 excel files. A remote attacker can exploit this issue by enticing a victim to open a specially crafted excel file.
Update/Patch AvaliableApply patches from: MS16-133

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 (MS16-133: CVE-2016-7231) 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:  Content Protection Violation.
Attack Information:  Microsoft Office Memory Corruption (MS16-133: CVE-2016-7231)

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