[24493] in Kerberos

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Password Changing failing from Windows to MIT KDC

daemon@ATHENA.MIT.EDU (Mike Friedman)
Mon Aug 22 19:23:23 2005

Date: Mon, 22 Aug 2005 16:22:25 -0700 (PDT)
From: Mike Friedman <mikef@ack.berkeley.edu>
To: kerberos@mit.edu
Message-ID: <20050822161705.T3944@malcolm.berkeley.edu>
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I posted on this a few days ago but haven't received any replies, so I 
figure it may have fallen through the cracks.

It seems that with the current release of KfW, password changing fails to 
either a 1.3.4 or 1.4.2 KDC.  Yet, earlier versions of KfW don't have this 
problem.  Similarly with Windows native Kerberos password changing.  I 
haven't done testing of the latter myself, but a colleague who works on 
Windows has.

The message he receives is this:

    Server error: Failed decrypting request

The KDC logs show a successful issuing of the kadmin/changepw service 
credential, but no further action indicating a change password 
transaction.

I suspected a client host firewall problem (re: UDP 464), but the problem 
continues even with no firewall rules in place.

Has something changed with the new versions of KfW?

Thanks.

Mike

_____________________________________________________________________
Mike Friedman                   System and Network Security
mikef@ack.Berkeley.EDU          2484 Shattuck Avenue
1-510-642-1410                  University of California at Berkeley
http://ack.Berkeley.EDU/~mikef  http://security.berkeley.edu
_____________________________________________________________________

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