From caffeine@TOODARKPARK.ORG Sat Nov  1 21:52:09 1997
Date: Tue, 28 Oct 1997 12:09:44 -0500
From: Howie <caffeine@TOODARKPARK.ORG>
To: BUGTRAQ@NETSPACE.ORG
Subject: Sun Security Bulletin #00155 (fwd)

---------- Forwarded message ----------
Date: Tue, 28 Oct 1997 08:45:04 -0800
From: Sun Security Coordination Team <secure@sunsc.Eng.Sun.COM>
To: CWS@sunsc.Eng.Sun.COM
Subject: Sun Security Bulletin #00155


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________________________________________________________________________________
                   Sun Microsystems, Inc. Security Bulletin

Bulletin Number:        #00155
Date:                   October 28, 1997
Cross-Ref:
Title:                  nis_cachemgr
________________________________________________________________________________
Permission is granted for the redistribution of this Bulletin, so long as
the Bulletin is not edited and is attributed to Sun Microsystems. Portions
may also be excerpted for re-use in other security advisories so long as
proper attribution is included.

Any other use of this information without the express written consent of
Sun Microsystems is prohibited. Sun Microsystems expressly disclaims all
liability for any misuse of this information by any third party.
________________________________________________________________________________

1.  Bulletins Topics

    Sun announces the release of patches for Solaris 2.5.1, 2.5, and 2.4
    (SunOS 5.5.1, 5.5, and 5.4) which relate to a vulnerability in
    nis_cachemgr.

    Sun estimates that the release of a patch for Solaris 2.3 (SunOS 5.3)
    that relate to the same vulnerability will be available within 4 weeks
    of the date of this bulletin.

    Sun strongly recommends that you install the patches listed in section 4
    immediately on systems running SunOS 5.5.1, 5.5, and 5.4 which use
    NIS+.

2.  Who is Affected

    Vulnerable:  SunOS versions 5.5.1, 5.5.1_x86, 5.5, 5.5_x86,
                                5.4, 5.4_x86, 5.3

    Not vulnerable: All other supported versions of SunOS.

    The vulnerability does not exist in Solaris 2.6.

3.  Understanding the Vulnerability

    NIS+ clients run nis_cachemgr, a NIS+ utility that caches location
    information about NIS+ servers. This vulnerability, if exploited, allows
    attackers to add bogus directory objects to the global shared cache, in
    effect specifying rogue NIS+ servers that are under their control.

4.  List of Patches

    The vulnerability in nis_cachemgr is fixed by the following patches:

    OS version          Patch ID
    __________          ________
    SunOS 5.5.1         103612-33
    SunOS 5.5.1_x86     103613-32
    SunOS 5.5           103187-29
    SunOS 5.5_x86       103188-29
    SunOS 5.4           101973-32
    SunOS 5.4_x86       101974-32
    SunOS 5.3           101318-89       (to be released in 4 weeks)

5.  Checksum Table

    The checksum table below shows the BSD checksums (SunOS 5.x: /usr/ucb/sum),
    SVR4 checksums (SunOS 5.x: /usr/bin/sum), and the MD5 digital signatures
    for the above-mentioned patches that are available from:

        <URL:ftp://sunsolve1.sun.com/pub/patches/patches.html>

    These checksums may not apply if you obtain patches from your answer
    centers.

File Name         BSD          SVR4          MD5
_______________   __________   __________    ________________________________
103612-33.tar.Z   42409 3248   60555 6495    63408A137DBE6BEEDAECFA49674F0E5A
103613-32.tar.Z   08972 2939   41390 5878    E613588ADA2845DA2CEDE801FE247ED2
103187-29.tar.Z   47938 3240   14585 6479    D681C0BB1C4267418AEB20F56DDE7FD3
103188-29.tar.Z   36871 2919   14150 5838    F7184B433BF9EDCBA99E81D2039F355A
101973-32.tar.Z   55144 956    44485 1911    A802DA901090B52A27BDC6AE0D386C13
101974-32.tar.Z   41770 826    48991 1652    91AB26639B6CB0902ADE354999751826
______________________________________________________________________________
APPENDICES

A.  Patches listed in this bulletin are available to all Sun customers via
    World Wide Web at:

        <URL:ftp://sunsolve1.sun.com/pub/patches/patches.html>

    Customers with Sun support contracts can also obtain patches from local
    Sun answer centers and SunSITEs worldwide.

B.  Sun security bulletins are available via World Wide Web at:

        <URL:http://sunsolve1.sun.com/sunsolve/secbulletins>

C.  Sun Security Coordination Team's PGP key is available via World Wide Web
    at:

        <URL:http://sunsolve1.sun.com/sunsolve/secbulletins/SunSCkey.txt>

D.  To report or inquire about a security problem with Sun software, contact
    one or more of the following:

        - Your local Sun answer centers
        - Your representative computer security response team, such as CERT
        - Sun Security Coordination Team. Send email to:

                security-alert@sun.com

E.  To receive information or subscribe to our CWS (Customer Warning System)
    mailing list, send email to:

                security-alert@sun.com

    with a subject line (not body) containing one of the following commands:

        Command         Information Returned/Action Taken
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                                send #138

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                        Note that your-email-address should be substituted
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        unsubscribe     Sender is removed from the CWS mailing list.
________________________________________________________________________________



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