In the case where Microsoft Word is being used as the e-mail editor for Microsoft Outlook - which is the default setting for Office XP - an attacker could send a specially crafted e-mail to the user, and could cause arbitrary code to be executed if the user were to reply or forward the e-mail. An attacker could also seek to exploit this vulnerability by creating a malicious document and hosting it on a webpage, and then enticing a user to visit the website. If the user were to visit the site and follow a link to the document, the document could open automatically, and therefore could allow arbitrary code to be run.
If I'm using Microsoft Word as my e-mail editor, can the vulnerability be exploited just through reading e-mail? No - simply reading e-mail will not allow the vulnerability to be exploited.
The user must reply to or forward the attacker's e-mail. What does the patch do? The patch eliminates the vulnerability by ensuring that Microsoft VBA carries out the appropriate checks on the data passed to it by a host application when a document is opened. There are a number of patches available for this vulnerability?
Which one should I install? This depends on which version of Microsoft VBA and which host application you are using:. If you are using any of the following applications, you should apply the Microsoft VBA Version of the patch:. If you are using Microsoft Project or Microsoft Visio you should apply the specific version of the patch for those products. If you are using Microsoft Office or Microsoft Office XP including Publisher you should apply the specific version of the patch for those products.
I'm using more than one of the products listed above. Should I apply the product specific patch for each product? Yes- you should patch each product that is listed above. What should I do? If the user is logged on with administrative user rights, an attacker who successfully exploited this vulnerability could take complete control of an affected system. How could an attacker exploit the vulnerability? An attacker could convince a user to open a legitimate Microsoft Office-related file such as a.
Then, while opening the legitimate file, Microsoft Office could attempt to load the DLL file and execute any code it contained. In an email attack scenario, an attacker could exploit the vulnerability by sending a legitimate Microsoft Office-related file such as a.
In a network attack scenario, an attacker could put a legitimate Microsoft Office-related file and a specially crafted DLL file in a network share, a UNC, or WebDAV location and then convince the user to open the file. What systems are primarily at risk from the vulnerability? Systems where Microsoft Office is used, including workstations and terminal servers, are primarily at risk. Servers could be at more risk if administrators allow users to log on to servers and to run programs.
However, best practices strongly discourage allowing this. What does the update do? The update addresses this vulnerability by correcting how Microsoft Visual Basic for Applications loads external libraries. Is this vulnerability related to Microsoft Security Advisory ? This vulnerability is related to the class of vulnerabilities described in Microsoft Security Advisory , which affects how applications load external libraries.
This security update addresses a particular instance of this type of vulnerability. When this security bulletin was issued, had this vulnerability been publicly disclosed? This vulnerability has been publicly disclosed. When this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited?
Microsoft is aware of limited, targeted attacks attempting to exploit the vulnerability. Manage the software and security updates you need to deploy to the servers, desktop, and mobile systems in your organization. The Microsoft TechNet Security website provides additional information about security in Microsoft products.
Security updates are available from Microsoft Update and Windows Update. Security updates are also available from the Microsoft Download Center. You can find them most easily by doing a keyword search for "security update. For more information about using Microsoft AutoUpdate for Mac, see Check for software updates automatically.
Finally, security updates can be downloaded from the Microsoft Update Catalog. The Microsoft Update Catalog provides a searchable catalog of content made available through Windows Update and Microsoft Update, including security updates, drivers and service packs. By searching using the security bulletin number such as, "MS" , you can add all of the applicable updates to your basket including different languages for an update , and download to the folder of your choosing.
Microsoft provides detection and deployment guidance for security updates. This guidance contains recommendations and information that can help IT professionals understand how to use various tools for detection and deployment of security updates. For more information, see Microsoft Knowledge Base Article Microsoft Baseline Security Analyzer MBSA allows administrators to scan local and remote systems for missing security updates as well as common security misconfigurations.
Windows Server Update Services WSUS enables information technology administrators to deploy the latest Microsoft product updates to computers that are running the Windows operating system. Note Microsoft discontinued support for SMS 2.
Customers are encouraged to upgrade to System Center Configuration Manager. See also Downloads for Systems Management Server For more detailed information, see Microsoft Knowledge Base Article : Summary list of monthly detection and deployment guidance articles.
For more information, see the Office Administrative Installation Point heading in this section. If you installed your application from a server location, the server administrator must update the server location with the administrative update and deploy that update to your system. Typically, you'd also install either the ASP. NET Core Runtime or. NET Desktop Runtime. Home Download. NET 6. Want to learn more about.
NET 6? Check out the announcement blog post. If using an older patch release, you should upgrade to get these fixes. Release notes Latest release date December 14, The software development kit SDK includes everything you need to build and run. NET applications, using command-line tools and any editor like Visual Studio. If you are a Microsoft Office or Microsoft Office XP user, please obtain a patch for this issue from the Office Update site in addition to installing this patch. You will find a link to OfficeUpdate under the Related Resources links at the right of this page.
To download and install this patch: Click the Download link to start the download, or choose a different language from the drop-down list and click Go. Do one of the following: To start the installation immediately, click Open or Run this program from its current location.
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