Symptoms

You perform an authoritative restore on the krbtgt account in a Windows Server 2008-based or in a Windows Server 2008 R2-based domain. After you perform this operation, the kpasswd protocol fails and generates a KDC_ERROR_S_PRINCIPAL_UNKNOWN error code. Additionally, you may be unable to set the password of a user by using the kpasswd protocol. Also, this issue blocks kpasswd protocol interoperability between the domain and a Massachusetts Institute of Technology (MIT) realm. For example, you cannot set the user password by using the Microsoft Identity Lifecycle Manager during user provisioning.

Note The krbtgt account is used for Kerberos authentication. The account cannot be used to log on to a domain.


You may experience additional symptoms in a Windows Server 2012-based server cluster. Assume that you try to set the password for the cluster computer object in a Windows Server 2012-based server cluster. Additionally, assume that there are Windows Server 2008-based or Windows Server 2008 R2-based domain controllers in the environment. In this situation, you receive the following error message:

CreateClusterNameCOIfNotExists (6783): Unable to set password on <ClusterName$>

To resolve this issue, apply this hotfix on the Windows Server 2008-based or Windows Server 2008 R2-based domain controllers, and then create the Windows Server 2012-based server cluster.

Note You do not need to apply this hotfix if you have Windows Server 2008 R2 Service Pack 1 installed..

Cause

When a user requests a ticket for the Kpasswd service, a flag is incorrectly set in the Kerberos ticket-granting service (TGS) request for the Kpasswd service. This behavior causes the Key Distribution Center (KDC) to incorrectly build a new service name. Therefore, an incorrect service name is used, and the KPasswd service fails.

Note The expected behavior is that the Key Distribution Center (KDC) directly copies the correct service name from the Kerberos ticket-granting tickets (TGTs).

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=supportNote 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, your computer must be running Windows Server 2008 Service Pack 2 (SP2) or Windows Server 2008 R2. Additionally, the computer must have the Active Directory Domain Services (AD DS) server role installed.

For more information about how to obtain a Windows Server 2008 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

968849 How to obtain the latest service pack for Windows Server 2008

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 Server 2008 file information notes

Important Windows Vista hotfixes and Windows Server 2008 hotfixes are included in the same packages. However, only "Windows Vista" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows Vista" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • The files that apply to a specific product, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.

    Version

    Product

    SR_Level

    Service branch

    6.0.600
    2.
    22xxx

    Windows Server 2008

    SP2

    LDR

  • 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 and for Windows Vista" section. MUM files and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintaining the state of the updated component. 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 Server 2008

File name

File version

File size

Date

Time

Platform

Kdcsvc.dll

6.0.6002.22313

312,832

15-Jan-2010

19:56

x86

Kdcsvc.mof

Not Applicable

5,300

03-Apr-2009

21:47

Not Applicable

For all supported x64-based versions of Windows Server 2008

File name

File version

File size

Date

Time

Platform

Kdcsvc.dll

6.0.6002.22313

406,528

15-Jan-2010

19:49

x64

Kdcsvc.mof

Not Applicable

5,300

03-Apr-2009

21:07

Not Applicable

Windows Server 2008 R2 file information notes


Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • 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" 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 x64-based versions of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Kdcsvc.dll

6.1.7600.20768

430,080

30-Jul-2010

05:09

x64

Kdcsvc.mof

Not Applicable

5,300

10-Jun-2009

21:01

Not Applicable

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, click the following article number to view the article in the Microsoft Knowledge Base:

968140 The kpasswd protocol fails with a KDC_ERR_S_PRINCIPAL_UNKNOWN error after you perform an authoritative restore on the krbtgt account in a Windows Server 2008 domain

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 Server 2008

Additional files for all supported x86-based versions of Windows Server 2008

File name

Update.mum

File version

Not applicable

File size

2,253

Date (UTC)

19-Jan-2010

Time (UTC)

08:10

Platform

Not applicable

File name

X86_d0f3d955d2b5768a71aff47151566751_31bf3856ad364e35_6.0.6002.22313_none_638710039e605b6e.manifest

File version

Not applicable

File size

720

Date (UTC)

19-Jan-2010

Time (UTC)

08:10

Platform

Not applicable

File name

X86_microsoft-windows-k..distribution-center_31bf3856ad364e35_6.0.6002.22313_none_8e201173aa8a3193.manifest

File version

Not applicable

File size

42,276

Date (UTC)

16-Jan-2010

Time (UTC)

01:16

Platform

Not applicable

Additional files for all supported x64-based versions of Windows Server 2008

File name

Amd64_91f846b3bad6ae4dbddb26da25d7ef85_31bf3856ad364e35_6.0.6002.22313_none_b544072e4ea8e655.manifest

File version

Not applicable

File size

724

Date (UTC)

19-Jan-2010

Time (UTC)

08:10

Platform

Not applicable

File name

Amd64_microsoft-windows-k..distribution-center_31bf3856ad364e35_6.0.6002.22313_none_ea3eacf762e7a2c9.manifest

File version

Not applicable

File size

42,320

Date (UTC)

16-Jan-2010

Time (UTC)

01:09

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

2,269

Date (UTC)

19-Jan-2010

Time (UTC)

08:10

Platform

Not applicable

Additional file information for Windows Server 2008 R2

Additional files for all supported x64-based versions of Windows Server 2008 R2

File name

Amd64_6690add2dc1b7c06f724dbb33e5059e6_31bf3856ad364e35_6.1.7600.20768_none_b47174a5a615abf4.manifest

File version

Not Applicable

File size

724

Date (UTC)

30-Jul-2010

Time (UTC)

07:34

Platform

Not Applicable

File name

Amd64_microsoft-windows-k..distribution-center_31bf3856ad364e35_6.1.7600.20768_none_e84efd2ac6fc94f5.manifest

File version

Not Applicable

File size

35,825

Date (UTC)

30-Jul-2010

Time (UTC)

05:54

Platform

Not Applicable

File version

Not Applicable

File size

1,699

Date (UTC)

30-Jul-2010

Time (UTC)

07:34

Platform

Not Applicable

File name

Update.mum

File version

Not Applicable

File size

1,700

Date (UTC)

30-Jul-2010

Time (UTC)

07:34

Platform

Not Applicable

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