Select the product you need help with
MIT Kerberos v5 Authenticated Users Cannot Access Active Directory ResourcesArticle ID: 811802 - View products that this article applies to. For a Microsoft Windows Server 2000 version of this article, click the following link: Users Who Are Authenticated by MIT Kerberos v5 Cannot Access Active Directory Resources
(http://support.microsoft.com/kb/828684/EN-US/
)
On This PageSYMPTOMSIf you are a Microsoft Windows XP user who is authenticated
by an MIT Kerberos v5 realm, you may receive an "Access Denied" error message
when you try to access a resource or share in an Active Directory directory
service domain. CAUSEThis problem occurs because multiple Kerberos
Ticket-Granting Service Requests (KRB_TGS_REQ) can be sent to a Massachusetts
Institute of Technology (MIT) Kerberos v5 Key Distribution Center (KDC) at the
same time. If information in any of the most recent requests matches the server
name, client name, current time, and microsecond fields of the KRB_TGS_REQ
authenticator, the MIT Kerberos v5 KDC will return the "Access Denied" error
message. RESOLUTIONService pack informationTo resolve this problem, obtain the latest service pack for Microsoft Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:322389
(http://support.microsoft.com/kb/322389/EN-US/
)
How to obtain the latest Windows XP service packHotfix informationA 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 this specific problem. 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.
(http://support.microsoft.com/contactus/?ws=support)
The global version of this hotfix has the file attributes (or later) 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. Date Time Version Size File name -------------------------------------------------------- 20-Mar-2003 08:40 5.1.2600.1188 272,384 Kerberos.dll STATUSMicrosoft
has confirmed that this is a problem in the Microsoft products that are listed
in the "Applies to" section. This problem was first corrected in Microsoft
Windows XP Service Pack 2. MORE INFORMATIONEach authenticator (KRB_AP_REQ), including the ones that are
contained in a KRB_TGS_REQ message, must have a different set of these values
to avoid being detected as a replay. The other content of the KRB_TGS_REQ
message, including the specification where service principal is requested, is
not cached. If two KRB_TGS_REQs contain authenticators with the same
timestamps, they are seen as a replay attack even if the rest of the
authenticator is different (for example, the KRB_TGS_REQs for different
principals). PropertiesArticle ID: 811802 - Last Review: August 29, 2007 - Revision: 3.1
|
Back to the top
