Private key permissions are reset to the default values if a machine certificate is renewed by the Certificate Autoenrollment feature in Windows 7 or in Windows Server 2008 R2

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Article ID: 2625430 - View products that this article applies to.
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SYMPTOMS

Consider the following scenario:
  • The Certificate Autoenrollment feature is deployed in a domain environment.
  • A client computer that is running Windows 7 or Windows Server 2008 R2 receives a machine certificate through the Certificate Autoenrollment feature.
  • You change the private key permissions on the associated machine certificate.
  • The machine certificate is renewed by the Certificate Autoenrollment feature.
In this scenario, the private key permissions on the machine certificate are reset to the default values.

Note The following are the default values of the private key permissions on the machine certificate:
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GroupPermission
Local SystemFull Control
AdministratorsFull Control

RESOLUTION

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must be running one of the following operating systems:
  • Windows 7
  • Windows 7 Service Pack 1 (SP1)
  • Windows Server 2008 R2
  • Windows Server 2008 R2 Service Pack 1 (SP1)
For more information about how to obtain a Windows 7 or Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To use the hotfix in this package, you do not have to make any changes to the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.
Windows 7 and Windows Server 2008 R2 file information notes
  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:
    Collapse this tableExpand this table
    VersionProductMilestoneService branch
    6.1.760 0.21xxxWindows 7 and Windows Server 2008 R2RTMLDR
    6.1.760 1.21xxxWindows 7 and Windows Server 2008 R2SP1LDR
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 R2 and for Windows 7" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows 7
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File nameFile versionFile sizeDateTimePlatform
Certenroll.dll6.1.7600.210621,322,49601-Oct-201104:39x86
Certenroll.dll6.1.7601.218301,335,29601-Oct-201106:03x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
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File nameFile versionFile sizeDateTimePlatform
Certenroll.dll6.1.7600.210621,979,39201-Oct-201105:29x64
Certenroll.dll6.1.7601.218301,979,39201-Oct-201105:22x64
Certenroll.dll6.1.7600.210621,322,49601-Oct-201104:39x86
Certenroll.dll6.1.7601.218301,335,29601-Oct-201106:03x86
For all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Certenroll.dll6.1.7600.210623,855,36001-Oct-201104:15IA-64
Certenroll.dll6.1.7601.218303,855,36001-Oct-201104:14IA-64
Certenroll.dll6.1.7600.210621,322,49601-Oct-201104:39x86
Certenroll.dll6.1.7601.218301,335,29601-Oct-201106:03x86

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

MORE INFORMATION

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional file information

Additional file information for Windows 7 and for Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7
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File nameX86_17ab9f0f13af5f78d12ab03e392ace1d_31bf3856ad364e35_6.1.7600.21062_none_ab329009429686b7.manifest
File versionNot Applicable
File size713
Date (UTC)01-Oct-2011
Time (UTC)09:44
File nameX86_1930b4552d78dca6f2aa72749fbdbd80_31bf3856ad364e35_6.1.7601.21830_none_64584aa9793786f1.manifest
File versionNot Applicable
File size713
Date (UTC)01-Oct-2011
Time (UTC)09:44
File nameX86_microsoft-windows-x..rtificateenrollment_31bf3856ad364e35_6.1.7600.21062_none_f4092a7b090ab670.manifest
File versionNot Applicable
File size368,537
Date (UTC)01-Oct-2011
Time (UTC)09:53
File nameX86_microsoft-windows-x..rtificateenrollment_31bf3856ad364e35_6.1.7601.21830_none_f60e2075061a65c0.manifest
File versionNot Applicable
File size368,537
Date (UTC)01-Oct-2011
Time (UTC)09:53
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameAmd64_b0d50f42b84a913c86b896fe8db96a3d_31bf3856ad364e35_6.1.7600.21062_none_f4cdefd97a5542e5.manifest
File versionNot Applicable
File size1,074
Date (UTC)01-Oct-2011
Time (UTC)09:44
File nameAmd64_fde9d835a7368d91ce4f50dbf91ec106_31bf3856ad364e35_6.1.7601.21830_none_a3fe6c222794c663.manifest
File versionNot Applicable
File size1,074
Date (UTC)01-Oct-2011
Time (UTC)09:44
File nameAmd64_microsoft-windows-x..rtificateenrollment_31bf3856ad364e35_6.1.7600.21062_none_5027c5fec16827a6.manifest
File versionNot Applicable
File size368,541
Date (UTC)01-Oct-2011
Time (UTC)09:59
File nameAmd64_microsoft-windows-x..rtificateenrollment_31bf3856ad364e35_6.1.7601.21830_none_522cbbf8be77d6f6.manifest
File versionNot Applicable
File size368,541
Date (UTC)01-Oct-2011
Time (UTC)09:59
File nameX86_microsoft-windows-x..rtificateenrollment_31bf3856ad364e35_6.1.7600.21062_none_f4092a7b090ab670.manifest
File versionNot Applicable
File size368,537
Date (UTC)01-Oct-2011
Time (UTC)09:59
File nameX86_microsoft-windows-x..rtificateenrollment_31bf3856ad364e35_6.1.7601.21830_none_f60e2075061a65c0.manifest
File versionNot Applicable
File size368,537
Date (UTC)01-Oct-2011
Time (UTC)09:59
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameIa64_1263b4ce0f631076248ac21e082543ed_31bf3856ad364e35_6.1.7600.21062_none_81058bd852bc3914.manifest
File versionNot Applicable
File size1,072
Date (UTC)01-Oct-2011
Time (UTC)09:44
File nameIa64_236915daaa4357db15c05eee35021fdf_31bf3856ad364e35_6.1.7601.21830_none_8d05150f78e8b7e8.manifest
File versionNot Applicable
File size1,072
Date (UTC)01-Oct-2011
Time (UTC)09:44
File nameIa64_microsoft-windows-x..rtificateenrollment_31bf3856ad364e35_6.1.7600.21062_none_f40ace710908bf6c.manifest
File versionNot Applicable
File size368,539
Date (UTC)01-Oct-2011
Time (UTC)09:44
File nameIa64_microsoft-windows-x..rtificateenrollment_31bf3856ad364e35_6.1.7601.21830_none_f60fc46b06186ebc.manifest
File versionNot Applicable
File size368,539
Date (UTC)01-Oct-2011
Time (UTC)09:44
File nameX86_microsoft-windows-x..rtificateenrollment_31bf3856ad364e35_6.1.7600.21062_none_f4092a7b090ab670.manifest
File versionNot Applicable
File size368,537
Date (UTC)01-Oct-2011
Time (UTC)09:44
File nameX86_microsoft-windows-x..rtificateenrollment_31bf3856ad364e35_6.1.7601.21830_none_f60e2075061a65c0.manifest
File versionNot Applicable
File size368,537
Date (UTC)01-Oct-2011
Time (UTC)09:44

Properties

Article ID: 2625430 - Last Review: November 9, 2011 - Revision: 1.0
APPLIES TO
  • Windows 7 Enterprise
  • Windows 7 Professional
  • Windows 7 Ultimate
  • Windows Server 2008 R2 Datacenter
  • Windows Server 2008 R2 Enterprise
  • Windows Server 2008 R2 for Itanium-Based Systems
  • Windows Server 2008 R2 Foundation
  • Windows Server 2008 R2 Standard
  • Windows Web Server 2008 R2
Keywords: 
kbautohotfix kbqfe kbhotfixserver kbfix kbsurveynew kbexpertiseinter KB2625430

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