Intrusion Prevention

MS.Excel.Obj.BIFF.Record.Memory.Corruption

Description

This indicates an attack attempt against a remote 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 Office XP Service Pack 3
Microsoft Office 2003 Service Pack 3
Open XML File Format Converter for Mac
Microsoft Excel Viewer Service Pack 2
Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 2

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/MS11-045.mspx

CVE References

CVE-2011-1272