Ticket History #792: undocumented support_desmd5 attribute on by default in 1.1

# Mon Aug 19 14:16:08 2002 The RT System itself - Default: Import/ changed from (no value) to (no value)

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From tracy@www-gate.it-services.nwu.edu Wed Nov 24 12:10:42 1999
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Date: Wed, 24 Nov 1999 11:10:39 -0600 (CST)
From: ptracy@nwu.edu
Reply-To: ptracy@nwu.edu
To: krb5-bugs@MIT.EDU
Subject: krb5-kdc bug, support_desmd5 attribute on TGT princ
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>Number: 792
>Category: krb5-kdc
>Synopsis: undocumented support_desmd5 attribute on by default in 1.1
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: krb5-unassigned
>State: open
>Class: sw-bug
>Submitter-Id: unknown
>Arrival-Date: Wed Nov 24 12:11:00 EST 1999
>Last-Modified:
>Originator: Phil Tracy
>Organization:

Northwestern University IT

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>Release: krb5-1.1
>Environment:

HP/UX 10.20
System: HP-UX www-gate B.10.20 A 9000/770 2006557896 two-user license

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>Description:

After building 1.1 and loading a dump of the 1.0.6 database,
I'm able to get TGTs, but get bad enctype errors when trying
to contact TGS. This is because the krbtgt/REALM@REALM
principal has be default the SUPPORT_DESMD5 attribute set,
and I'm not using MD5 anywhere. kadmin.local doesn't explicitly
document how to turn this off, but it's easy enough to guess.

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>How-To-Repeat:

Start with 1.0.6 KDC. Configure clients & kdc with only des-cbc-crs
enctypes. Dump with kdb5_util. Load with 1.1 kdb5_util. Try to
obtain TGT, then service ticket.

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>Fix:

Use kadmin.local, modprinc -support_desmd5 krbtgt/REALM@REALM

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>Audit-Trail:
>Unformatted:

# Mon Aug 19 14:16:08 2002 The RT System itself - Component krb5-kdc added

# Mon Aug 19 14:16:08 2002 The RT System itself - Version_reported 1.1 added

# Wed Feb 05 16:43:02 2003 tlyu (Taylor Yu) - Subject changed from 'undocumented support_desmd5 attribute on by default in 1.1 ' to 'undocumented support_desmd5 attribute on by default in 1.1'

# Wed Feb 05 16:43:02 2003 tlyu (Taylor Yu) - Status changed from 'new' to 'resolved'

# Wed Feb 05 16:43:03 2003 tlyu (Taylor Yu) - Version_Fixed 1.2.3 added

# Wed Feb 05 16:43:03 2003 tlyu (Taylor Yu) - Comments added

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Fixed with the single-DES enctype mess in krb5-1.2.3.