Vulnerability Severity Rating and Maximum Security Impact by Affected Software
Affected Software	IPsec Policy Information Disclosure Vulnerability - CVE-2008-2246	Aggregate Severity Rating
Windows Vista and Windows Vista Service Pack 1	Important Information Disclosure	Important
Windows Vista x64 Edition and Windows Vista x64 Edition Service Pack 1	Important Information Disclosure	Important
Windows Server 2008 for 32-bit Systems	Important Information Disclosure	Important
Windows Server 2008 for x64-based Systems	Important Information Disclosure	Important
Windows Server 2008 for Itanium-based Systems	Important Information Disclosure	Important

An information disclosure vulnerability exists in the manner in which IPsec policies are imported to Windows Server 2008 domains from Windows Server 2003 domains. This vulnerability could cause systems to ignore IPsec policies and transmit network traffic in clear text. This, in turn, would potentially disclose information intended to be encrypted on the network. An attacker intercepting the traffic on the network would be able to view and possibly modify the contents of the traffic. Note that this vulnerability would not allow an attacker to execute code or to elevate their user rights directly. It could be used to collect useful information to try to further compromise the affected system.

To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2008-2246.

Manage the software and security updates you need to deploy to the servers, desktop, and mobile systems in your organization. For more information see the TechNet Update Management Center. The Microsoft TechNet Security Web site provides additional information about security in Microsoft products.

Security updates are available from Microsoft Update, Windows Update, and Office 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."

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, “MS07-036”), 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. For more information about the Microsoft Update Catalog, see the Microsoft Update Catalog FAQ.

Detection and Deployment Guidance

Microsoft has provided detection and deployment guidance for this month’s security updates. This guidance will also help IT professionals understand how they can use various tools to help deploy the security update, such as Windows Update, Microsoft Update, Office Update, the Microsoft Baseline Security Analyzer (MBSA), the Office Detection Tool, Microsoft Systems Management Server (SMS), and the Extended Security Update Inventory Tool. For more information, see Microsoft Knowledge Base Article 910723.

Microsoft Baseline Security Analyzer

Microsoft Baseline Security Analyzer (MBSA) allows administrators to scan local and remote systems for missing security updates as well as common security misconfigurations. For more information about MBSA, visit Microsoft Baseline Security Analyzer.

The following table provides the MBSA detection summary for this security update.

Software	MBSA 2.1
Windows Vista and Windows Vista Service Pack 1	Yes
Windows Vista x64 Edition and Windows Vista x64 Edition Service Pack 1	Yes
Windows Server 2008 for 32-bit Systems	Yes
Windows Server 2008 for x64-based Systems	Yes
Windows Server 2008 for Itanium-based Systems	Yes

For more information about MBSA 2.1, see MBSA 2.1 Frequently Asked Questions.

Windows Server Update Services

By using Windows Server Update Services (WSUS), administrators can deploy the latest critical updates and security updates for Windows 2000 operating systems and later, Office XP and later, Exchange Server 2003, and SQL Server 2000. For more information about how to deploy this security update using Windows Server Update Services, visit the Windows Server Update Services Web site.

Systems Management Server

The following table provides the SMS detection and deployment summary for this security update.

Software	SMS 2.0	SMS 2003 with SUSFP	SMS 2003 with ITMU	Configuration Manager 2007
Windows Vista	No	No	See Note for Windows Vista and Windows Server 2008 below	Yes
Windows Vista x64 Edition	No	No	See Note for Windows Vista and Windows Server 2008 below	Yes
Windows Server 2008 for 32-bit Systems	No	No	See Note for Windows Vista and Windows Server 2008 below	Yes
Windows Server 2008 for x64-based Systems	No	No	See Note for Windows Vista and Windows Server 2008 below	Yes
Windows Server 2008 for Itanium-based Systems	No	No	See Note for Windows Vista and Windows Server 2008 below	Yes

For SMS 2.0 and SMS 2003, the SMS SUS Feature Pack (SUSFP), which includes the Security Update Inventory Tool (SUIT), can be used by SMS to detect security updates. See also Downloads for Systems Management Server 2.0.

For SMS 2003, the SMS 2003 Inventory Tool for Microsoft Updates (ITMU) can be used by SMS to detect security updates that are offered by Microsoft Update and that are supported by Windows Server Update Services. For more information about the SMS 2003 ITMU, see SMS 2003 Inventory Tool for Microsoft Updates. SMS 2003 can also use the Microsoft Office Inventory Tool to detect required updates for Microsoft Office applications. For more information about the Office Inventory Tool and other scanning tools, see SMS 2003 Software Update Scanning Tools. See also Downloads for Systems Management Server 2003.

System Center Configuration Manager 2007 uses WSUS 3.0 for detection of updates. For more information about Configuration Manager 2007 Software Update Management, visit System Center Configuration Manager 2007.

Note for Windows Vista and Windows Server 2008 Microsoft Systems Management Server 2003 with Service Pack 3 includes support for Windows Vista and Windows Server 2008 manageability.

For more information about SMS, visit the SMS Web site.

For more detailed information, see Microsoft Knowledge Base Article 910723: Summary list of monthly detection and deployment guidance articles.

Affected Software

For information about the specific security update for your affected software, click the appropriate link: