[16293] in Kerberos_V5_Development
Re: wrong checksum type for arcfour-hmac-md5
daemon@ATHENA.MIT.EDU (Nicolas Williams)
Wed Sep 15 12:16:51 2010
Date: Wed, 15 Sep 2010 11:16:25 -0500
From: Nicolas Williams <Nicolas.Williams@oracle.com>
To: Greg Hudson <ghudson@mit.edu>
Message-ID: <20100915161625.GP3982@oracle.com>
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Cc: Luke Howard <lhoward@mit.edu>, "krbdev@mit.edu Dev List" <krbdev@mit.edu>
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On Wed, Sep 15, 2010 at 12:12:53PM -0400, Greg Hudson wrote:
> > Why isn't this considered a bug in the server??
>
> All we know so far (assuming all of the given information is correct) is
> that the server will accept a GSSAPI authenticator with an rsa-md5
> checksum--which is not valid--but won't accept one with an hmac-md5
> checksum.
>
> That's not a bug in the server; if anything, the server is being overly
> permissive by accepting rsa-md5. It's a bug in the "home-grown GSSAPI"
> client that it's not jusing a GSSAPI authenticator checksum.
Fine, then I'd say the bug is in the home-grown initiator.
> If there are other circumstances where the server will accept rsa-md5 in
> an authenticator and not hmac-md5, that's worth knowing about.
>
>
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