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Posted to dev@hc.apache.org by "Ulrich Colby (JIRA)" <ji...@apache.org> on 2017/10/24 21:14:00 UTC
[jira] [Closed] (HTTPCLIENT-1873) Kerberos delegation no longer
working after HTTPCLIENT-1736 patch in version 4.5.3
[ https://issues.apache.org/jira/browse/HTTPCLIENT-1873?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ulrich Colby closed HTTPCLIENT-1873.
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> Kerberos delegation no longer working after HTTPCLIENT-1736 patch in version 4.5.3
> ----------------------------------------------------------------------------------
>
> Key: HTTPCLIENT-1873
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1873
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Components: HttpClient (classic), HttpClient (Windows)
> Affects Versions: 4.5.3, 4.5.4
> Environment: Windows,Linux
> Reporter: Ulrich Colby
> Priority: Minor
> Labels: easyfix
> Fix For: 4.6 Alpha1, 5.0 Alpha3
>
> Original Estimate: 2h
> Remaining Estimate: 2h
>
> In version 4.5.3, the following fix got applied to the httpclient library:
> _ [HTTPCLIENT-1736] do not request cred delegation by default when using Kerberos auth.
> Contributed by Oleg Kalnichevski <olegk at apache.org>_
> Although it says "by default", when looking at the affected code it's not the case (i.e.: there is no way to request if we want it). From our tests and my understanding of Kerberos, if a user account is not allowed to be used for delegation, then you can still request delegation, but when creating the user token, it'll simply not be applied.
> +Affected area+:
> In the class "GSSSchemeBase", in the method "createGSSContext", we need the following line added back:
> *gssContext.requestCredDeleg(true);*
> **OR**
> If you insist of leaving it off for a reason I'm not aware of, having a way, maybe through a system property, to say that we want it.
> _IMHO, one of the main reason for using Kerberos in an enterprise environment is to be able to make use of delegation (double hop scenarios)._
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