Khai thác ms 12-020 trên windows 2k8
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In this articleSecurity Bulletin Microsoft Security Bulletin MS12-020 - CriticalVulnerabilities in Remote Desktop Could Allow Remote Code Execution (2671387)Published: March 13, 2012 | Updated: July 31, 2012 Version: 2.1 General InformationExecutive SummaryThis security update resolves two privately reported vulnerabilities in the Remote Desktop Protocol. The more severe of these vulnerabilities could allow remote code execution if an attacker sends a sequence of specially crafted RDP packets to an affected system. By default, the Remote Desktop Protocol (RDP) is not enabled on any Windows operating system. Systems that do not have RDP enabled are not at risk. This security update is rated Critical for all supported releases of Microsoft Windows. For more information, see the subsection, Affected and Non-Affected Software, in this section. The security update addresses the vulnerabilities by modifying the way that the Remote Desktop Protocol processes packets in memory and the way that the RDP service processes packets. For more information about the vulnerabilities, see the Frequently Asked Questions (FAQ) subsection for the specific vulnerability entry under the next section, Vulnerability Information. Recommendation. The majority of customers have automatic updating enabled and will not need to take any action because this security update will be downloaded and installed automatically. Customers who have not enabled automatic updating need to check for updates and install this update manually. For information about specific configuration options in automatic updating, see Microsoft Knowledge Base Article 294871. For administrators and enterprise installations, or end users who want to install this security update manually, Microsoft recommends that customers apply the update immediately using update management software, or by checking for updates using the Microsoft Update service. See also the section, Detection and Deployment Tools and Guidance, later in this bulletin. Known Issues. Microsoft Knowledge Base Article 2671387 documents the currently known issues that customers may experience when installing this security update. The article also documents recommended solutions for these issues. Affected and Non-Affected SoftwareThe following software have been tested to determine which versions or editions are affected. Other versions or editions are either past their support life cycle or are not affected. To determine the support life cycle for your software version or edition, visit Microsoft Support Lifecycle. Affected Software
*Server Core installation affected. This update applies, with the same severity rating, to supported editions of Windows Server 2008 or Windows Server 2008 R2 as indicated, whether or not installed using the Server Core installation option. For more information on this installation option, see the TechNet articles, Managing a Server Core Installation and Servicing a Server Core Installation. Note that the Server Core installation option does not apply to certain editions of Windows Server 2008 and Windows Server 2008 R2; see Compare Server Core Installation Options. [1]Update package KB2621440 addresses CVE-2012-0002 and update package KB2667402 addresses CVE-2012-0152. While CVE-2012-0152 has a lower severity rating than KB2621440 on affected versions of Microsoft Windows, the aggregate severity rating is Critical based on CVE-2012-0002. Customers should apply all updates offered for the version of Microsoft Windows installed on their systems. Why was this bulletin rereleased on June 12, 2012? Where are the file information details? Is Windows Developer Preview affected by any of the vulnerabilities addressed in this bulletin? I'm running an affected operating system, but I do not have Remote Desktop Protocol (RDP) enabled. Will I still be offered this update? There are two updates listed for the version of Microsoft Windows on my system. Do I need to install both updates? Yes. Customers should apply all updates offered for the version of Microsoft Windows installed on their systems. Do I need to install these security updates in a particular sequence? I
am using an older release of the software discussed in this security bulletin. What should I do? It should be a priority for customers who have older releases of the software to migrate to supported releases to prevent potential exposure to vulnerabilities. To determine the support lifecycle for your software release, see Select a Product for Lifecycle Information. For more information about service packs for these software releases, see Service Pack Lifecycle Support Policy. Customers who require custom support for older software must contact their Microsoft account team representative, their Technical Account Manager, or the appropriate Microsoft partner representative for custom support options. Customers without an Alliance, Premier, or Authorized Contract can contact their local Microsoft sales office. For contact information, visit the Microsoft Worldwide Information website, select the country in the Contact Information list, and then click Go to see a list of telephone numbers. When you call, ask to speak with the local Premier Support sales manager. For more information, see the Microsoft Support Lifecycle Policy FAQ. Vulnerability InformationSeverity Ratings and Vulnerability IdentifiersThe following severity ratings assume the potential maximum impact of the vulnerability. For information regarding the likelihood, within 30 days of this security bulletin's release, of the exploitability of the vulnerability in relation to its severity rating and security impact, please see the Exploitability Index in the March bulletin summary. For more information, see Microsoft Exploitability Index. Vulnerability Severity Rating and Maximum Security Impact by Affected Software
Note The update for supported versions of Windows XP Professional x64 Edition also applies to supported versions of Windows Server 2003 x64 Edition. Deployment InformationInstalling the Update When you install this security update, the installer checks whether one or more of the files that are being updated on your system have previously been updated by a Microsoft hotfix. If you have previously installed a hotfix to update one of these files, the installer copies the RTMQFE, SP1QFE, or SP2QFE files to your system. Otherwise, the installer copies the RTMGDR, SP1GDR, or SP2GDR files to your system. Security updates may not contain all variations of these files. For more information about this behavior, see Microsoft Knowledge Base Article 824994. For more information about the installer, see Microsoft Knowledge Base Article 832475. For more information about the terminology that appears in this bulletin, such as hotfix, see Microsoft Knowledge Base Article 824684. This security update supports the following setup switches. Supported Security Update Installation Switches
Removing the Update This security update supports the following setup switches. Supported Spuninst.exe Switches
Windows Server 2003 (all editions)Reference Table The following table contains the security update information for this software. You can find additional information in the subsection, Deployment Information, in this section.
Deployment InformationInstalling the Update When you install this security update, the installer checks whether one or more of the files that are being updated on your system have previously been updated by a Microsoft hotfix. If you have previously installed a hotfix to update one of these files, the installer copies the RTMQFE, SP1QFE, or SP2QFE files to your system. Otherwise, the installer copies the RTMGDR, SP1GDR, or SP2GDR files to your system. Security updates may not contain all variations of these files. For more information about this behavior, see Microsoft Knowledge Base Article 824994. For more information about the installer, see Microsoft Knowledge Base Article 832475. For more information about the terminology that appears in this bulletin, such as hotfix, see Microsoft Knowledge Base Article 824684. This security update supports the following setup switches. Supported Security Update Installation Switches
Removing the Update This security update supports the following setup switches. Supported Spuninst.exe Switches
Windows Vista (all editions)Reference Table The following table contains the security update information for this software. You can find additional information in the subsection, Deployment Information, in this section.
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