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             AUSCERT External Security Bulletin Redistribution

                        ESB-2007.0367 -- [Solaris]
       A Security Vulnerability in the in.iked(1M) Service May Lead
                       To a Denial of Service (DoS)
                                7 June 2007

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

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

Product:              iked
Publisher:            Sun Microsystems
Operating System:     Solaris 9
Impact:               Denial of Service
Access:               Remote/Unauthenticated
CVE Names:            CVE-2007-2989

Original Bulletin:    
  http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-26-102745-1

Revision History:  June 7 2007: Added CVE reference
                   May 31 2007: Initial Release

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Sun(sm) Alert Notification
     * Sun Alert ID: 102745
     * Synopsis: A Security Vulnerability in the in.iked(1M) Service May
       Lead To a Denial of Service (DoS)
     * Category: Security
     * Product: Solaris 9 Operating System
     * BugIDs: 6435580
     * Avoidance: Patch
     * State: Resolved
     * Date Released: 29-May-2007
     * Date Closed: 29-May-2007
     * Date Modified: 

1. Impact

   A security vulnerability in the in.iked(1M) service for Solaris 9 may
   allow an unprivileged local or remote user to crash the in.iked(1M)
   daemon, causing a Denial of Service (DoS) to IPsec protected network
   traffic. This is due to a logical pointer-handling error in the
   "libike" library.

2. Contributing Factors

   This issue can occur in the following releases:

   SPARC Platform
     * Solaris 9 without patch 113451-13

   x86 Platform
     * Solaris 9 without patch 114435-12

   Notes:
    1. Solaris 10 is not affected by this issue.
    2. Solaris 8 does not ship with in.iked(1M) and is not affected by
       this issue.
    3. This issue only affects systems with the in.iked(1M) service
       enabled.

   The in.iked(1M) daemon is configured to run on a system if the file
   '/etc/inet/ike/config' is present. To determine if IKE services are
   configured on the system, the following command can be run:
    $ ls /etc/inet/ike/config
    /etc/inet/ike/config: No such file or directory

   By default, the in.iked(1M) service is disabled on Solaris systems.

3. Symptoms

   If this issue has been exploited, in.iked(1M) may no longer be running
   on the system. When running in.iked(1M) in debug mode, the following
   messages will appear:
    Tue Jun 06 09:52:20 2006: /usr/lib/inet/in.iked: In ssh_policy_new_connecti
on (pm_info = 0x719b8).
    Tue Jun 06 09:52:20 2006: /usr/lib/inet/in.iked: Rejecting inbound phase 1:
 remote port != 500.
    Tue Jun 06 09:52:20 2006: /usr/lib/inet/in.iked: Phase 2 negotiation failed
: Aborted notification.
    Assertion failed: pm_info->local_ip != NULL && pm_info->remote_ip != NULL,
file ../common/policy.c, line 1293
    Abort (core dumped)

   If this issue has been exploited, the IKE daemon will no longer be
   running on the system. To determine if the IKE (in.iked(1M)) daemon is
   not running on a system which has IKE configured, the following
   command can be run:
    $ test ! -f /etc/inet/ike/config || pgrep in.iked || \
    echo "in.iked not running but should be" 

4. Relief/Workaround

   Until patches can be applied, sites may wish to filter UDP packets
   which have a source port other than the IKE port (port 500) and also
   to include at least one IKE rule in the ike.config(4) file.

   When this issue has occurred, it is necessary to manually restart
   in.iked(1M) using the following command (as 'root'):
    # /usr/lib/inet/in.iked


5. Resolution

   This issue is addressed in the following releases:

   SPARC Platform
     * Solaris 9 with patch 113451-13 or later

   x86 Platform
     * Solaris 9 with patch 114435-12 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 2000-2006 Sun Microsystems, Inc., 4150 Network Circle, Santa
   Clara, CA 95054 U.S.A. All rights reserved

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