Check Point Advisories

Microsoft Excel SerAuxErrBar Heap Overflow (MS12-076; CVE-2012-1885)

Vulnerability
Protection

Check Point Reference:	CPAI-2012-402
Date Published:	13 Nov 2012
Severity:	Critical
Last Updated:	Sunday 22 February, 2015
Source:
Industry Reference:	CVE-2012-1885
Protection Provided by:	Security Gateway R81, R80, R77, R75, R71, R70
Who is Vulnerable?
Vulnerability Description	A remote code execution vulnerability has been reported in Microsoft Excel. The vulnerability is due to a memory allocation error. A remote attacker can exploit this issue by enticing a target user to open a specially crafted Excel file with an affected version of Microsoft Excel. Successful exploitation of this vulnerability could allow an attacker to take complete control of an affected system.

Protection Overview

This protection will detect and block the transferring of specially crafted XLS files.

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 / R71 / R70

In the IPS tab, click Protections and find the Microsoft Excel SerAuxErrBar Heap Overflow (MS12-076) 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 SerAuxErrBar Heap Overflow (MS12-076)