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             AUSCERT External Security Bulletin Redistribution

                        ESB-2008.0622 -- [Solaris]
            SNMPv3 Authentication Bypass Vulnerability in snmpd
                               1 August 2008

===========================================================================

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

Product:              SNMPv3
Publisher:            Sun Microsystems
Operating System:     Solaris
Impact:               Access Privileged Data
Access:               Remote/Unauthenticated
CVE Names:            CVE-2008-0960

Ref:                  AL-2008.0073

Original Bulletin:
  http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-66-238865-1

Revision History:     August 1 2008: Issue resolved
                      June  16 2008: Initial Release

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   Solution Type: Sun Alert
   Solution  238865 :   SNMPv3 Authentication Bypass Vulnerability in
   snmpd(1M)          
   Bug ID: 6705202

   Product
   Solaris 10 Operating System, OpenSolaris

   Date of Workaround Release: 12-Jun-2008

   Date of Resolved Release: 30-Jul-2008

   SA Document Body
   SNMPv3 Authentication Bypass Vulnerability in snmpd(1M)

   1. Impact
   A security vulnerability in the System Management Agent (SMA) SNMP
   daemon (snmpd(1M)) that shipped with Solaris may allow a local or
   remote unprivileged user to access unauthorized information.
   This issue is described in the following document:

      http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0960

   2. Contributing Factors
   This issue can occur in the following releases:
   SPARC Platform:
     * Solaris 10 without patch 120272-21
     * OpenSolaris based upon builds snv_01 or later

   x86 Platform:
     * Solaris 10 without patch 120273-23
     * OpenSolaris based upon builds snv_01 or later

   Notes:
   1. Solaris 8 and Solaris 9 do not ship with the Net-SNMP software and
   thus are not impacted by this issue.

   2. The Net-SNMP software was not bundled with Solaris prior to
   Solaris10. However, customers who have built and/or installed a
   vulnerable version of Net-SNMP on any version of Solaris are at risk.
   (See the Net-SNMP web site to download the latest version of Net-SNMP
   which addresses this issue).

   3. The Solaris 10 patches which address this vulnerability do not
   increment the version of Net-SNMP. The version of Net-SNMP supplied
   with the patches will still be reported as 5.0.9.

   4. This issue only affects systems which have the SUNWsmagt package
   installed. To determine if the SUNWsmagt package is installed on the
   system, the following command can be used:

      $ pkginfo -l SUNWsmagt
      PKGINST: SUNWsmagt
      NAME: System Management Agent files and libraries
      CATEGORY: system
      VERSION: 1.0,REV=2005.01.08.05.16

   5. Only OpenSolaris installations including the affected binary
   "/usr/sfw/lib/libnetsnmp.so.5.0.9" are affected by this issue.

   6. OpenSolaris distributions may include additional bug fixes above
   and beyond the build from which it was derived. The base build can be
   derived as follows:

      $ uname -a
      SunOS  phys-node-1 5.11 snv_86 i86pc i386 i86pc

   3. Symptoms
   There are no predictable symptoms that would indicate this issue has
   being exploited to gain access to unauthorized information.

   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:
     * Solaris 10 with patch 120272-21 or later
     * OpenSolaris based upon builds snv_93 or later

   x86 Platform:
     * Solaris 10 with patch 120273-23 or later
     * OpenSolaris based upon builds snv_93 or later

   For more information on Security Sun Alerts, see Technical
   Instruction ID 213557.

   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 2000-2008 Sun Microsystems, Inc., 4150 Network Circle, Santa
   Clara, CA 95054 U.S.A. All rights reserved
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