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Flaw in Microsoft Word could enable macros to run automatically
Article ID: 827653 - View products that this article applies to.
A macro is a series of commands and instructions that you group as a single command to complete a task automatically. Microsoft Word supports the use of macros to allow the automation of frequently performed tasks. Because macros are executable code, you can misuse them, so Word has a security model that is designed to validate if a macro should be allowed to run depending on the level of macro security that the user has chosen.
A vulnerability exists because an attacker can craft a malicious document that will bypass the macro security model. If the document was opened, this flaw could permit a malicious macro embedded in the document to be executed automatically, regardless of the level that the macro security is set to. The malicious macro could take the same actions that the user had permissions to carry out such as adding, changing, deleting data or files, communicating with a Web site, or formatting the hard disk.
The vulnerability could only be exploited by an attacker who persuaded a user to open a malicious document. There is no way for an attacker to force a malicious document to be opened.
Security Patch Information
Download and Installation Information
Word 2002If you are running Word 2002, apply the Word 2002 patch. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/824934/ )Description of the Word 2002 Security Patch: September 3, 2003
Word 2000If you are running Word 2000, apply the Word 2000 patch. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/824936/ )Description of the Word 2000 Security Patch: September 3, 2003
Word 97 and Word for Windows 98 (Japanese)If you are running either Word 97 or Word for Windows 98 Japanese, apply the Word 97 or Word for Windows 98 Japanese patch. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/827647/ )Overview of the Word 97 Security Hotfix: September 3, 2003
Works SuiteIf you are running Microsoft Works Suite, you should use Office Update to detect and install the appropriate patch. To view the Office Update, visit the following Microsoft Web site:
Removal InformationThis patch cannot be removed.
Patch Replacement InformationThis patch does not replace any other hotfixes.
For more information about these vulnerabilities, visit the following Microsoft Web site:
Article ID: 827653 - Last Review: July 3, 2006 - Revision: 2.9