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From "Karsten Spang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HTTPCLIENT-1736) TGT is forwarded to server when using Kerberos authentication
Date Tue, 12 Apr 2016 13:12:25 GMT
Karsten Spang created HTTPCLIENT-1736:
-----------------------------------------

             Summary: TGT is forwarded to server when using Kerberos authentication
                 Key: HTTPCLIENT-1736
                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1736
             Project: HttpComponents HttpClient
          Issue Type: Improvement
          Components: HttpClient
    Affects Versions: 4.5.2
            Reporter: Karsten Spang


In {{GGSSchemeBase.generateGSSToken}}, line 133 in version 4.5.2:
{code:java}
        gssContext.requestCredDeleg(true);
{code}
For Kerberos, this means that the client will forward the to TGT to the server. First, I don't
see why you would want that, as that is an unnecessary security risk. Second, I have a problem
with my {{SecurityManager}} (Oracle's in-database Aurora security manager), so I am unable
to create a permission for this that works.
I suggest to change this to
{code:java}
        gssContext.requestCredDeleg(false);
{code}
There might be situations where a client application would actually want to pass the TGT,
but it should be possible to control this.



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