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             AUSCERT External Security Bulletin Redistribution

                        ESB-2006.0021 -- [Solaris]
            Security Vulnerabilities in uucp(1C) and uustat(1C)
                              11 January 2006

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

Product:           uucp(1C)
                   uustat(1C)
Publisher:         Sun Microsystems
Operating System:  Solaris 9 and prior
Impact:            Increased Privileges
                   Execute Arbitrary Code/Commands
Access:            Existing Account
CVE Names:         CVE-2004-0780

Original Bulletin: 
  http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-26-101933-1

Comment: 
  Further details are available in the following iDefense advisory:
  http://www.idefense.com/intelligence/vulnerabilities/display.php?id=366

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Sun(sm) Alert Notification
     * Sun Alert ID: 101933
     * Synopsis: Security Vulnerabilities in uucp(1C) and uustat(1C)
     * Category: Security
     * Product: Solaris 9 Operating System, Solaris 8 Operating System
     * BugIDs: 4952456
     * Avoidance: Patch, Workaround
     * State: Resolved
     * Date Released: 09-Jan-2006
     * Date Closed: 09-Jan-2006
     * Date Modified: 

1. Impact

   Security vulnerabilities in the uucp(1C) and uustat(1C) utilities may
   allow local unprivileged users the ability to execute arbitrary
   commands with the privileges of the "uucp" user (user ID 5 by
   default).

   The uustat(1C) issue is also referenced here:
     * http://www.idefense.com/intelligence/vulnerabilities/display.ph
       p?id=366
     * http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005

   Sun acknowledges, with thanks, iDefense Labs and Angelo Rosiello
   (http://www.rosiello.org/) for bringing the uustat(1C) issue to our
   attention.

2. Contributing Factors

   These issues can occur in the following releases:

   SPARC Platform
     * Solaris 8 without patch 111570-04
     * Solaris 9 without patch 113322-03

   x86 Platform
     * Solaris 8 without patch 111571-04
     * Solaris 9 without patch 115880-02

   Note: Solaris 10 is not impacted by these issues. Solaris 7 will not
   be evaluated regarding a potential impact of the issues described in
   this Sun Alert document.

3. Symptoms

   There are no reliable symptoms that would indicate the described
   issues have been exploited. 

4. Relief/Workaround

   To work around the described issues, remove the "set-user-ID" bit from
   the uucp(1C) and uustat(1C) binaries as follows:
    # chmod u-s /usr/bin/uucp
    # chmod u-s /usr/bin/uustat

   Note: Removing the "set-user-ID" bit from the uucp(1C) and uustat(1C)
   binaries will prevent unprivileged users from using the uucp(1C) and
   uustat(1C) commands to access calling devices (such as modems).

5. Resolution

   These issues are addressed in the following releases:

   SPARC Platform
     * Solaris 8 with patch 111570-04 or later
     * Solaris 9 with patch 113322-03 or later

   x86 Platform
     * Solaris 8 with patch 111571-04 or later
     * Solaris 9 with patch 115880-02 or later

   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 2000-2005 Sun Microsystems, Inc., 4150 Network Circle, Santa
   Clara, CA 95054 U.S.A. All rights reserved

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