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                                     CERT-Renater

                          Note d'Information No. 2007/VULN322
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DATE                      : 27/07/2007

HARDWARE PLATFORM(S)      : /

OPERATING SYSTEM(S)       : Solaris 10 running BIND.

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Sun(sm) Alert Notification

    This is a preliminary Sun Alert notification. Sun provides these
    notices in an effort to allow customers to implement mitigation
    strategies while these issues are being investigated. The information
    contained in these documents is likely to change as more is learned
    about the applicable issues. At the time of publication, workarounds
    and/or final resolutions are not available for the issues. Preliminary
    Sun Alert notifications will be updated as more information becomes
    available.
      * Sun Alert ID: 103018
      * Synopsis: Security Vulnerability in Solaris 10 BIND: Susceptible
        to Cache Poisoning Attack
      * Category: Security
      * Product: Solaris 10 Operating System
      * BugIDs: 6582717
      * Avoidance: None
      * State: Preliminary
      * Date Released: 25-Jul-2007
      * Date Closed:
      * Date Modified:

1. Impact

    Remote unprivileged users may cause named(1M) to ultimately return
    incorrect addresses for Internet hosts thereby redirecting end users
    to unintended hosts and or services.

    This issue is also referenced in the following documents:
      * CVE-2007-2926 (CERT-US VU#553201) at:
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2926
      * Internet Systems Consortium Security bulletin at:
        http://www.isc.org/sw/bind/bind-security.php

2. Contributing Factors

    This issue can occur in the following releases:

    SPARC Platform
      * Solaris 10

    x86 Platform
      * Solaris 10

    Note: Solaris 8 and Solaris 9 are not impacted by this issue.

    Only systems with the BIND named(1M) service enabled are impacted by
    this issue. To verify if the DNS service instance is enabled under
    smf(5), use the svcs(1) command as follows:
     $ svcs -l svc:/network/dns/server:default | grep enabled
     enabled      true


3. Symptoms

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

4. Relief/Workaround

    There is no workaround.  Please see the Resolution section below.

5. Resolution

    A final resolution is pending completion.

    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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            =========================================================
            Les serveurs de référence du CERT-Renater
            http://www.urec.fr/securite
            http://www.cru.fr/securite
            http://www.renater.fr
            =========================================================
            + CERT-RENATER          | tel : 01-53-94-20-44          +
            + 151 bd de l'Hopital   | fax : 01-53-94-20-41          +
            + 75013 Paris           | email: certsvp@renater.fr     +
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