Update Protection against Microsoft Excel QSir and QSif Records Pointer Corruption Vulnerability (MS09-021)
| Check Point Reference: | CPAI-2009-150 | |
| Date Published: | ||
| Severity: | ||
| Source: | Microsoft Security Bulletin MS09-021 | |
| Industry Reference(s): | CVE-2009-1134 | |
| Protection Provided by: |
Security Gateway
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| Who is Vulnerable? Microsoft Office Excel 2007 SP1 Microsoft Office Excel 2007 SP2 Microsoft Office Excel Viewer Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats | ||
| Vulnerability Description A remote code execution vulnerability has been identified in the Microsoft Excel. Microsoft Excel is a popular spreadsheet application. A remote attacker could exploit this issue via a malformed Excel file. Successful exploitation of this vulnerability may allow execution of arbitrary code on a target system. |
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Update/Patch Available Apply patches: Microsoft Security Bulletin MS09-021 |
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Vulnerability Details The flaw is due to a memory corruption error in Microsoft Excel when loading specially crafted Excel files that include a malformed record object. The vulnerability occurs in the parsing of a malformed QSir and QSif records. A remote attacker could trigger this flaw by convincing a victim to open a malformed Excel spreadsheet file. Successful exploitation of this issue may allow the attacker to take complete control of an affected system. |
Protection Overview
This protection will detect and block the transferring of malformed Excel files over HTTP.
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, Protection tab and select the version of your choice.
To configure the defense, select your product from the list below and follow the related protection steps.