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             AUSCERT External Security Bulletin Redistribution

                               ESB-2010.0487
 A Security Vulnerability Exists if an OpenSolaris System was Joined to  a
              Windows Domain Using kclient(1M) or smbadm(1M)
                                1 June 2010

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Kerberos
                   CIFS
Publisher:         Sun Microsystems
Operating System:  OpenSolaris
Impact/Access:     Reduced Security -- Unknown/Unspecified
Resolution:        Patch/Upgrade

Original Bulletin: 
   http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-77-1021793.1-1

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   Article ID : 1021793.1
   Article Type : Sun Alerts (SURE)
   Last reviewed : 2010-05-19
   Audience : PUBLIC
   Copyright Notice: Copyright © 2010, Oracle Corporation and/or its
   affiliates.
   
   A Security Vulnerability Exists if an OpenSolaris System was Joined to
   a Windows Domain Using kclient(1M) or smbadm(1M)
     _________________________________________________________________

   Category: Security
   Release Phase: Resolved
   Bug Id: 6913788, 6913833
   Product: OpenSolaris
   Date of Resolved Release: 26-Jan-2010
   A Security Vulnerability Exists if an OpenSolaris System was Joined to
   a Windows Domain Using kclient(1M) or smbadm(1M)

   1. Impact

   An insecure default configuration security vulnerability exists in the
   way the Kerberos client utility (kclient(1M)) and the CIFS
   configuration utility (smbadm(1M)) join a Windows Active Directory
   domain.

   2. Contributing Factors

   This issue can occur in the following releases:
   SPARC Platform
     * OpenSolaris based upon builds snv_77 through snv_131 for
       smbadm(1M)
     * OpenSolaris based upon builds snv_91 through snv_131 for
       kclient(1M)

   x86 Platform
     * OpenSolaris based upon builds snv_77 through snv_131 for
       smbadm(1M)
     * OpenSolaris based upon builds snv_91 through snv_131 for
       kclient(1M)

   Note: Solaris 8, 9, and 10 are not impacted by this issue.
   OpenSolaris distributions may include additional bug fixes above and
   beyond the build from which it was derived. To determine the base
   build of OpenSolaris, the following command can be used:
$ uname -v
snv_131

   3. Symptoms

   There are no predictable symptoms that would indicate the described
   issue has occurred.

   4. Workaround

   There is no workaround for this issue. Please see the Resolution
   section below.

   5. Resolution

   This issue is addressed in the following releases:
   SPARC Platform
     * OpenSolaris based upon builds snv_132 or later for smbadm(1M) and
       kclient(1M)

   x86 Platform
     * OpenSolaris based upon builds snv_132 or later for smbadm(1M) and
       kclient(1M)

   Note: kclient(1M) or smbadm(1M) must be rerun on the client after
   updating to snv_132 or later in order to generate sufficiently random
   password/keys for the computer account in Windows Active Directory.
   For kclient(1M), an example would be:
$ kclient -T ms_ad

   For smbadm(1M), an example would be:
$ smbadm join -u administrator EXAMPLE.COM

   For more information on Security Sun Alerts, see 1009886.1.
   This Sun Alert notification is being provided to you on an "AS IS"
   basis. This Sun Alert notification may contain information provided by
   third parties. The issues described in this Sun Alert notification may
   or may not impact your system(s). Sun makes no representations,
   warranties, or guarantees as to the information contained herein. ANY
   AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
   WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
   NON-INFRINGEMENT, ARE HEREBY DISCLAIMED. BY ACCESSING THIS DOCUMENT
   YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT,
   INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE
   OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN.
   This Sun Alert notification contains Sun proprietary and confidential
   information. It is being provided to you pursuant to the provisions of
   your agreement to purchase services from Sun, or, if you do not have
   such an agreement, the Sun.com Terms of Use. This Sun Alert
   notification may only be used for the purposes contemplated by these
   agreements.
   Copyright 2000-2010 Sun Microsystems, Inc., 4150 Network Circle, Santa
   Clara, CA 95054 U.S.A. All rights reserved.

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