Authentication may intermittently fail (818173)
The information in this article applies to:
- Microsoft Windows 2000 Server SP4
- Microsoft Windows 2000 Advanced Server SP4
- Microsoft Windows XP Service Pack 1
SYMPTOMSWhen you configure a three-tier Web application environment
that uses Kerberos authentication, you may intermittently find that client
authentication fails. For example, in the following scenario, the
ticket-granting ticket (TGT) may expire before the client is authenticated to
the destination computer that is running Microsoft SQL Server:
- The client connects to a Microsoft Internet Information
Services (IIS) Web server.
- The client forwards the TGT to the IIS server.
- The IIS server connects to a computer that is running SQL
Server by using the ticket that was forwarded by the client (Kerberos
delegation).
The InitializeSecurityContext function returns a SEC_E_NO_CREDENTIALS error code in the SQL
application on the Web server. Additionally, the client receives the following
error message: Cannot Generate SSPI
Context CAUSE This problem may occur if the AcquireCredentialsHandle function returns an incorrect expiry time for the TGT. The ptsExpiry parameter of the AcquireCredentialsHandle function does not reflect the correct lifetime of the forwarded
TGT.RESOLUTIONHotfix informationMicrosoft Windows 2000A supported
hotfix is now available from Microsoft, but it is only intended to correct the
problem that this article describes. Apply it only to systems that are
experiencing this specific problem. To resolve this problem, contact
Microsoft Product Support Services to obtain the hotfix. For a complete list of
Microsoft Product Support Services telephone numbers and information about
support costs, visit the following Microsoft Web site: Note In special cases, charges that are ordinarily incurred for
support calls may be canceled if a Microsoft Support Professional determines
that a specific update will resolve your problem. The usual support costs will
apply to additional support questions and issues that do not qualify for the
specific update in question.Prerequisites This hotfix requires Windows 2000 Service Pack 4 (SP4).Restart requirement You must restart your computer after you apply this hotfix.Hotfix replacement information This hotfix does not replace any other hotfixes.File information
The English version of this has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel. |
| Adsldp.dll | 5.0.2195.6748 | 124,688 | 19-Jun-2003 | 05:28 | x86 | | Adsldpc.dll | 5.0.2195.6748 | 132,368 | 19-Jun-2003 | 05:28 | x86 | | Adsmsext.dll | 5.0.2195.6748 | 63,760 | 19-Jun-2003 | 05:28 | x86 | | Advapi32.dll | 5.0.2195.6743 | 381,200 | 19-Jun-2003 | 05:28 | x86 | | Browser.dll | 5.0.2195.6753 | 69,392 | 06-Jun-2003 | 04:53 | x86 | | Dnsapi.dll | 5.0.2195.6680 | 134,928 | 19-Jun-2003 | 05:28 | x86 | | Dnsrslvr.dll | 5.0.2195.6663 | 92,432 | 19-Jun-2003 | 05:28 | x86 | | Eventlog.dll | 5.0.2195.6753 | 47,376 | 19-Jun-2003 | 05:28 | x86 | | Kdcsvc.dll | 5.0.2195.6747 | 148,240 | 19-Jun-2003 | 05:28 | x86 | | Kerberos.dll | 5.0.2195.6758 | 205,072 | 18-Jun-2003 | 02:43 | x86 | | Ksecdd.sys | 5.0.2195.6695 | 71,888 | 26-Mar-2003 | 06:37 | x86 | | Lsasrv.dll | 5.0.2195.6749 | 509,712 | 28-May-2003 | 05:39 | x86 | | Lsass.exe | 5.0.2195.6749 | 33,552 | 28-May-2003 | 05:39 | x86 | | Msv1_0.dll | 5.0.2195.6680 | 117,520 | 04-Apr-2003 | 09:12 | x86 | | Netapi32.dll | 5.0.2195.6601 | 311,568 | 19-Jun-2003 | 05:28 | x86 | | Netlogon.dll | 5.0.2195.6695 | 371,984 | 19-Jun-2003 | 05:28 | x86 | | Ntdsa.dll | 5.0.2195.6697 | 1,040,144 | 19-Jun-2003 | 05:28 | x86 | | Samsrv.dll | 5.0.2195.6742 | 392,464 | 19-Jun-2003 | 05:28 | x86 | | Scecli.dll | 5.0.2195.6737 | 131,344 | 19-Jun-2003 | 05:28 | x86 | | Scesrv.dll | 5.0.2195.6737 | 306,448 | 19-Jun-2003 | 05:28 | x86 | | Sp3res.dll | 5.0.2195.6756 | 4,576,768 | 17-Jun-2003 | 02:54 | x86 | | W32time.dll | 5.0.2195.6601 | 51,472 | 19-Jun-2003 | 05:28 | x86 | | W32tm.exe | 5.0.2195.6601 | 57,104 | 15-Aug-2002 | 22:32 | x86 | | Wldap32.dll | 5.0.2195.6741 | 126,224 | 19-Jun-2003 | 05:28 | x86 |
Note This hotfix should be applied on both the IIS server and the
client. Microsoft Windows XPA supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows XP service pack that contains this hotfix. To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site: Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.Prerequisites This hotfix requires Windows XP Service Pack 1 (SP1).Restart requirement You must restart your computer after you apply this hotfix.Hotfix replacement information This hotfix does not replace any other hotfixes.File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel. Microsoft Windows XP Service Pack 1 (SP1), 32-bit versions|
| Kerberos.dll | 5.1.2600.1228 | 273,920 | 30-May-2003 | 05:38 | x86 |
Microsoft Windows XP Service Pack 1 (SP1), Itanium-based versions|
| Kerberos.dll | 5.1.2600.1228 | 929,792 | 30-May-2003 | 05:39 | IA-64 | | Wkerberos.dll | 5.1.2600.1228 | 273,920 | 30-May-2003 | 05:11 | x86 |
STATUSMicrosoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
| Modification Type: | Minor | Last Reviewed: | 7/24/2006 |
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| Keywords: | kbQFE kbHotfixServer kbWinXPsp2fix kbWinXPpreSP2fix kbBug kbfix kbWin2000preSP5fix kbpubtypekc KB818173 kbAudITPRO kbAudDeveloper |
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