MS16-094: Security update for Secure Boot: July 12, 2016

2016-07-12T00:00:00
ID KB3177404
Type mskb
Reporter Microsoft
Modified 2016-07-12T19:16:19

Description

<html><body><p>Resolves a vulnerability in Windows that could allow Secure Boot security features to be bypassed if an attacker installs an affected policy on a target device. An attacker must have either administrative privileges or physical access to install a policy and bypass Secure Boot.</p><h2>Summary</h2><div class="kb-summary-section section">This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow Secure Boot security features to be bypassed if an attacker installs an affected policy on a target device. An attacker must have either administrative privileges or physical access to install a policy and bypass Secure Boot.<br/><br/><br/><br/>To learn more about the vulnerability, see <a href="https://technet.microsoft.com/library/security/ms16-094" id="kb-link-2" target="_self">Microsoft Security Bulletin MS16-094</a>. </div><h2>More Information</h2><div class="kb-moreinformation-section section"><span class="text-base">Important</span><br/><br/><ul class="sbody-free_list"><li>All future security and non-security updates for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 require update <a href="https://support.microsoft.com/en-us/help/2919355" id="kb-link-3" target="_self">2919355</a> to be installed. We recommend that you install update <a href="https://support.microsoft.com/en-us/help/2919355" id="kb-link-4" target="_self">2919355</a> on your Windows RT 8.1-based, Windows 8.1-based, or Windows Server 2012 R2-based computer so that you receive future updates. </li><li>If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see <a href="https://technet.microsoft.com/en-us/library/hh825699" id="kb-link-5" target="_self">Add language packs to Windows</a>.<br/></li></ul></div><h2>Additional information about this security update</h2><div class="kb-moreinformation-section section"><br/>The following articles contain additional information about this security update as it relates to individual product versions. The articles may contain known issue information.<br/><br/><ul class="sbody-free_list"><li><a href="https://support.microsoft.com/help/3172727" id="kb-link-6" target="_self">3172727</a> MS16-094: Description of the security update for secure boot: July 12, 2016 </li><li><a href="https://support.microsoft.com/help/3163912" id="kb-link-7" target="_self">3163912</a> Cumulative update for Windows 10: July 12, 2016</li><li><a href="https://support.microsoft.com/help/3172985 " id="kb-link-8" target="_self">3172985</a> Cumulative update for Windows 10 Version 1511 and Windows Server 2016 Technical Preview 4: July 12, 2016</li></ul></div><h2>How to obtain and install the update</h2><div class="kb-resolution-section section"><a class="bookmark" id="obtaintheupdate"></a><h3 class="sbody-h3">Method 1: Windows Update</h3><div class="kb-collapsible kb-collapsible-expanded">This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to turn on automatic updating, see <br/><a href="https://www.microsoft.com/en-us/safety/pc-security/updates.aspx" id="kb-link-10" target="_self">Get security updates automatically</a>.<br/><br/><span class="text-base">Note</span> For Windows RT 8.1, this update is available through Windows Update only.<br/></div><div class="faq-section" faq-section=""><div class="faq-panel"><div class="faq-panel-heading" faq-panel-heading=""><span class="link-expand-image"><span class="faq-chevron win-icon win-icon-ChevronUpSmall"></span></span><span class="bold btn-link link-expand-text"><span class="bold btn-link">Method 2: Microsoft Download Center</span></span></div><div class="faq-panel-body" faq-panel-body=""><span><div class="kb-collapsible kb-collapsible-collapsed">You can obtain the stand-alone update package through the Microsoft Download Center. Follow the installation instructions on the download page to install the update.<br/><br/>Click the download link in <a href="https://technet.microsoft.com/library/security/ms16-094" id="kb-link-11" target="_self">Microsoft Security Bulletin MS16-094</a> that corresponds to the version of Windows that you are running. <br/></div><br/></span></div></div></div></div><h2>More Information</h2><div class="kb-moreinformation-section section"><div class="faq-section" faq-section=""><div class="faq-panel"><div class="faq-panel-heading" faq-panel-heading=""><span class="link-expand-image"><span class="faq-chevron win-icon win-icon-ChevronUpSmall"></span></span><span class="bold btn-link link-expand-text"><span class="bold btn-link">Security update deployment information<br/></span></span></div><div class="faq-panel-body" faq-panel-body=""><span><div class="kb-collapsible kb-collapsible-collapsed"><h4 class="sbody-h4">Windows 8.1 (all editions)</h4><span class="text-base">Reference table</span><br/><br/>The following table contains the security update information for this software.<br/><div class="table-responsive"><table class="sbody-table table"><tr class="sbody-tr"><td class="sbody-td"><span class="text-base">Security update file name</span></td><td class="sbody-td">For all supported 32-bit editions of Windows 8.1:<br/><span class="text-base">Windows8.1-KB3172727-x86.msu</span></td></tr><tr class="sbody-tr"><td class="sbody-td"></td><td class="sbody-td">For all supported x64-based editions of Windows 8.1:<br/><span class="text-base">Windows8.1-KB3172727-x64.msu</span></td></tr><tr class="sbody-tr"><td class="sbody-td"><span class="text-base">Installation switches</span></td><td class="sbody-td">See <a href="https://support.microsoft.com/help/934307" id="kb-link-12" target="_self">Microsoft Knowledge Base article 934307</a></td></tr><tr class="sbody-tr"><td class="sbody-td"><span class="text-base">Restart requirement</span></td><td class="sbody-td">You must restart the system after you apply this security update. </td></tr><tr class="sbody-tr"><td class="sbody-td"><span class="text-base">Removal information</span></td><td class="sbody-td">To uninstall an update that is installed by WUSA, use the <span class="text-base">/Uninstall</span> setup switch or Click <strong class="uiterm">Control Panel</strong>, click <strong class="uiterm">System and Security</strong>, and then click <strong class="uiterm">Windows Update</strong>. Under <span class="sbody-userinput">See also</span>, click <span class="sbody-userinput">Installed updates</span>, and then select from the list of updates. </td></tr><tr class="sbody-tr"><td class="sbody-td"><span class="text-base">File information</span></td><td class="sbody-td">See <a href="https://support.microsoft.com/help/3172727" id="kb-link-13" target="_self">Microsoft Knowledge Base article 3172727</a></td></tr><tr class="sbody-tr"><td class="sbody-td"><span class="text-base">Registry key verification</span></td><td class="sbody-td"><span class="text-base">Note</span> There is no registry key to validate the presence of this update. </td></tr></table></div><h4 class="sbody-h4"> Windows Server 2012 and Windows Server 2012 R2 (all editions)</h4><span class="text-base">Reference table</span><br/><br/>The following table contains the security update information for this software.<br/><br/><br/><div class="table-responsive"><table class="sbody-table table"><tr class="sbody-tr"><td class="sbody-td"><span class="text-base">Security update file name</span></td><td class="sbody-td">For all supported editions of Windows Server 2012:<br/><span class="text-base">Windows8-RT-KB3172727-x64.msu</span></td></tr><tr class="sbody-tr"><td class="sbody-td"></td><td class="sbody-td">For all supported editions of Windows Server 2012 R2:<br/><span class="text-base">Windows8.1-KB3172727-x64.msu</span></td></tr><tr class="sbody-tr"><td class="sbody-td"><span class="text-base">Installation switches</span></td><td class="sbody-td">See <a href="https://support.microsoft.com/help/934307" id="kb-link-14" target="_self">Microsoft Knowledge Base article 934307</a></td></tr><tr class="sbody-tr"><td class="sbody-td"><span class="text-base">Restart requirement</span></td><td class="sbody-td">You must restart the system after you apply this security update. </td></tr><tr class="sbody-tr"><td class="sbody-td"><span class="text-base">Removal information</span></td><td class="sbody-td">To uninstall an update that is installed by WUSA, use the <span class="text-base">/Uninstall</span> setup switch or Click <strong class="uiterm">Control Panel</strong>, click <strong class="uiterm">System and Security</strong>, and then click <strong class="uiterm">Windows Update</strong>. Under <span class="sbody-userinput">See also</span>, click <span class="sbody-userinput">Installed updates</span>, and then select from the list of updates. </td></tr><tr class="sbody-tr"><td class="sbody-td"><span class="text-base">File information</span></td><td class="sbody-td">See <a href="https://support.microsoft.com/help/3172727" id="kb-link-15" target="_self">Microsoft Knowledge Base article 3172727</a></td></tr><tr class="sbody-tr"><td class="sbody-td"><span class="text-base">Registry key verification</span></td><td class="sbody-td"><span class="text-base">Note</span> There is no registry key to validate the presence of this update. </td></tr></table></div><h4 class="sbody-h4"> Windows RT 8.1 (all editions)</h4><span class="text-base">Reference table</span><br/><br/>The following table contains the security update information for this software.<br/><br/><br/><div class="table-responsive"><table class="sbody-table table"><tr class="sbody-tr"><td class="sbody-td"><span class="text-base">Deployment</span></td><td class="sbody-td">These updates are available via <a href="http://go.microsoft.com/fwlink/?linkid=21130" id="kb-link-16" target="_self">Windows Update</a> only. </td></tr><tr class="sbody-tr"><td class="sbody-td"><span class="text-base">Restart Requirement</span></td><td class="sbody-td">You must restart the system after you apply this security update. </td></tr><tr class="sbody-tr"><td class="sbody-td"><span class="text-base">Removal Information</span></td><td class="sbody-td">Click <strong class="uiterm">Control Panel</strong>, click <strong class="uiterm">System and Security</strong>, and then click <strong class="uiterm">Windows Update</strong>. Under <span class="sbody-userinput">See also</span>, click <span class="sbody-userinput">Installed updates</span>, and then select from the list of updates. </td></tr><tr class="sbody-tr"><td class="sbody-td"><span class="text-base">File Information</span></td><td class="sbody-td">See <a href="https://support.microsoft.com/help/3172727" id="kb-link-17" target="_self">Microsoft Knowledge Base Article 3172727</a></td></tr></table></div><h4 class="sbody-h4"> Windows 10 (all editions)</h4><span class="text-base">Reference table</span><br/><br/>The following table contains the security update information for this software.<br/><br/><br/><div class="table-responsive"><table class="sbody-table table"><tr class="sbody-tr"><td class="sbody-td"><span class="text-base">Security update file name</span></td><td class="sbody-td">For all supported 32-bit editions of Windows 10:<br/><span class="text-base">Windows10.0-KB3163912-x86.msu</span></td></tr><tr class="sbody-tr"><td class="sbody-td"><br/></td><td class="sbody-td">For all supported x64-based editions of Windows 10:<br/><span class="text-base">Windows10.0-KB3163912-x64.msu</span></td></tr><tr class="sbody-tr"><td class="sbody-td"><br/></td><td class="sbody-td">For all supported 32-bit editions of Windows 10 Version 1511:<br/><span class="text-base">Windows10.0-KB3172985 -x86.msu</span></td></tr><tr class="sbody-tr"><td class="sbody-td"><br/></td><td class="sbody-td">For all supported x64-based editions of Windows 10 Version 1511:<br/><span class="text-base">Windows10.0-KB3172985 -x64.msu</span></td></tr><tr class="sbody-tr"><td class="sbody-td"><span class="text-base">Installation switches</span></td><td class="sbody-td">See <a href="https://support.microsoft.com/help/934307" id="kb-link-18" target="_self">Microsoft Knowledge Base article 934307</a></td></tr><tr class="sbody-tr"><td class="sbody-td"><span class="text-base">Restart requirement</span></td><td class="sbody-td">You must restart the system after you apply this security update. </td></tr><tr class="sbody-tr"><td class="sbody-td"><span class="text-base">Removal information</span></td><td class="sbody-td">To uninstall an update that is installed by WUSA, use the <span class="text-base">/Uninstall</span> setup switch or Click <strong class="uiterm">Control Panel</strong>, click <strong class="uiterm">System and Security</strong>, and then click <strong class="uiterm">Windows Update</strong>. Under <span class="sbody-userinput"> See also</span>, click <span class="sbody-userinput">Installed updates</span>, and then select from the list of updates. </td></tr><tr class="sbody-tr"><td class="sbody-td"><span class="text-base">File information</span></td><td class="sbody-td">See <a href="https://support.microsoft.com/help/3163912" id="kb-link-19" target="_self">Microsoft Knowledge Base article 3163912</a><br/>See <a href="https://support.microsoft.com/help/3172985 " id="kb-link-20" target="_self">Microsoft Knowledge Base article 3172985</a></td></tr><tr class="sbody-tr"><td class="sbody-td"><span class="text-base">Registry key verification</span></td><td class="sbody-td"><span class="text-base">Note</span> There is no registry key to validate the presence of this update. </td></tr></table></div></div><br/></span></div></div></div><div class="faq-section" faq-section=""><div class="faq-panel"><div class="faq-panel-heading" faq-panel-heading=""><span class="link-expand-image"><span class="faq-chevron win-icon win-icon-ChevronUpSmall"></span></span><span class="bold btn-link link-expand-text"><span class="bold btn-link">How to obtain help and support for this security update</span></span></div><div class="faq-panel-body" faq-panel-body=""><span><div class="kb-collapsible kb-collapsible-collapsed">Help for installing updates: <a href="https://support.microsoft.com/ph/6527" id="kb-link-21" target="_self">Support for Microsoft Update</a><br/><br/>Security solutions for IT professionals: <a href="https://technet.microsoft.com/security/bb980617.aspx" id="kb-link-22" target="_self">TechNet Security Troubleshooting and Support</a><br/><br/>Help for protecting your Windows-based computer from viruses and malware: <a href="https://support.microsoft.com/contactus/cu_sc_virsec_master" id="kb-link-23" target="_self">Virus Solution and Security Center</a><br/><br/>Local support according to your country: <a href="https://www.microsoft.com/en-us/locale.aspx" id="kb-link-24" target="_self">International Support</a></div><br/></span></div></div></div><a class="bookmark" id="fileinfo"></a></div></body></html>