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Update Protection against Microsoft WordPad Word 97 Text Converter XST Parsing Stack Overflow Vulnerability (MS09-010)

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Check Point Reference: CPAI-2009-074
Date Published:
Severity:
Last Updated:
Source: Microsoft Security Bulletin MS09-010
Industry Reference(s): CVE-2008-4841
Protection Provided by: Security Gateway
  • R70
IPS-1
  • IPS-1
  • IPS-1 NGX R65
Who is Vulnerable?
Microsoft Windows 2000 SP4
Windows XP SP2
Windows XP SP3
Windows XP Professional x64 Edition
Windows XP Professional x64 Edition SP2
Windows Server 2003 SP1
Windows Server 2003 SP2
Windows Server 2003 x64 Edition
Windows Server 2003 x64 Edition SP2
Vulnerability Description
A remote code execution vulnerability has been reported in Microsoft WordPad. WordPad Text Converters allow users who do not have Microsoft Office Word installed to open documents in other Microsoft Windows applications. They also allow users to save documents in the Word 97 file format. A remote attacker can exploit this vulnerability via a specially crafted Word 97 document. Successful exploitation may allow execution of arbitrary code on a vulnerable system.
Update/Patch Available
Apply patches:
Microsoft Security Bulletin MS09-010
Vulnerability Details
The vulnerability is due to a memory corruption error when a user opens a specially crafted document in an affected version of Microsoft WordPad. A remote attacker could trigger this flaw by convincing a victim to open a specially crafted Word file that includes a malformed list structure. Successful exploitation of this issue allows execution of arbitrary code once a malformed file is being loaded on a vulnerable system.

Protection Overview
This protection will detect and block attempts to exploit this vulnerability. IPS-1 will detect and block WordPad files containing malformed XSL transferred over SMTP, HTTP and FTP.

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.

Security Gateway R70

How Can I Protect My Network?
1. In the IPS tab, click Protections > By Protocol > Application Intelligence > Content Protection.
2. In the right pane, double-click the Microsoft WordPad Word 97 Text Converter List Structure Stack Overflow (MS09-010) protection.
3. In the Protection Details window, click on Edit. Choose the protection's Action (Override IPS Policy with: Prevent/Detect), and apply Additional Settings.
4. Install policy on all modules.

How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:

Attack Name: Content Protection Violation
Attack Information: Microsoft WordPad Word 97 text converter list structure stack overflow (MS09-010)

IPS-1 & IPS-1 NGX R65

How Can I Protect My Network?
1. In the IPS-1 Policy Manager, click on the Protection tab.
2. In the Protection tree, click Application Intelligence > Badfiles, and select the Microsoft Office Parser protection group.
3. Click CVE-2008-4841 WordPad XST parsing stack overflow (MS09-010) - IPS-1 NGX R65 only.
4. In the configuration pane, under Settings, check Active.
5. Click on Install Policy.

How Do I Know if My Network is Under Attack?
Upon attack, the following entries will be logged:

Alert Name: Vulnerability in MS-Office file
Description: CVE-2008-4841 WordPad XST parsing stack overflow (MS09-010)