Intrusion Prevention

MS.Excel.Data.Initialization.Code.Execution

Description

This indicates an attack attempt against a code-execution vulnerability in Microsoft Office Excel.
The vulnerability is caused by an error when the vulnerable software handles a specially crafted .XLS file. It allows a remote attacker to execute arbitrary code.

Affected Products

Microsoft Excel 2002 Service Pack 3
Microsoft Office 2004 for Mac
Microsoft Office 2008 for Mac
Open XML File Format Converter for Mac

Impact

System Compromise: Remote attackers can gain control of vulnerable systems.

Recommended Actions

Apply the patch, available from the vendor's web site:
http://www.microsoft.com/technet/security/Bulletin/MS11-021.mspx

CVE References

CVE-2011-0105