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Sun Security Bulletin #00219
From: "Sun Security Coordination Team" <body_16298188-405853340 () hermes sun com>
Date: Tue, 4 Jun 2002 14:49:32 GMT-08:00

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________________________________________________________________________________
                    Sun Microsystems, Inc. Security Bulletin

Bulletin Number:        #00219
Date:                   June 04, 2002
Cross-Ref:              http://www.entercept.com/dr/snmp/
Title:                  SEA SNMP
________________________________________________________________________________

The information contained in this Security Bulletin is provided "AS IS."
Sun makes no warranties of any kind whatsoever with respect to the information
contained in this Security Bulletin. ALL EXPRESS OR IMPLIED CONDITIONS,
REPRESENTATIONS AND WARRANTIES, INCLUDING ANY WARRANTY OF NON-INFRINGEMENT OR
IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE
HEREBY DISCLAIMED AND EXCLUDED TO THE EXTENT ALLOWED BY APPLICABLE LAW.

IN NO EVENT WILL SUN MICROSYSTEMS, INC. BE LIABLE FOR ANY LOST REVENUE,
PROFIT OR DATA, OR FOR DIRECT, SPECIAL, INDIRECT, CONSEQUENTIAL, INCIDENTAL
OR PUNITIVE DAMAGES HOWEVER CAUSED AND REGARDLESS OF ANY THEORY OF LIABILITY
ARISING OUT OF THE USE OF OR INABILITY TO USE THE INFORMATION CONTAINED IN
THIS SECURITY BULLETIN, EVEN IF SUN MICROSYSTEMS, INC. HAS BEEN ADVISED OF
THE POSSIBILITY OF SUCH DAMAGES.

If any of the above provisions are held to be in violation of applicable law,
void, or unenforceable in any jurisdiction, then such provisions are waived
to the extent necessary for this disclaimer to be otherwise enforceable in
such jurisdiction.
________________________________________________________________________________

1.  Bulletins Topics

    Sun announces the release of patches for Solaris(tm) 8, 7, and
    2.6 (SunOS(tm) 5.8, 5.7, and 5.6) which relate to security
    fixes in snmpdx(1M) and mibiisa(1M).

    Sun recommends that you install the patches listed in section 4
    immediately on systems running the Sun Solstice Enterprise
    Master Agent, snmpdx(1M), and the Sun SNMP Agent, mibiisa(1M), on
    SunOS 5.8, 5.7, and 5.6.

2.  Who is Affected

    Vulnerable:                    SunOS 5.8, 5.8_x86, 5.7, 5.7_x86, 5.6,
                                   5.6_x86

3.  Understanding the Vulnerability

    The Sun Solstice Enterprise Master Agent, snmpdx, runs as a daemon
    process and listens to User Datagram Protocol (UDP) port 161 for
    SNMP request.  The snmpdx daemon also opens another port to receive
    SNMP trap notifications from various subagents.  These traps are
    forwarded to various managers, as determined by the configuration
    file.  The snmpdx daemon reads the /etc/snmp/conf/mibiisa.rsrc file
    and then starts the mibiisa process as specified in the file.  It
    then forwards any relevant incoming SNMP requests to the mibiisa
    daemon.

    The snmpdx master agent and the mibiisa agent run as daemons with
    root privileges on the system.  The snmpdx daemon and the mibiisa
    daemon are started by default via the /etc/rc3.d/S76snmpdx script.
    A format string vulnerability has been discovered in snmpdx and a
    buffer overflow found in mibiisa which may be exploited by a local
    or a remote attacker to gain root access on the affected system.
    Any system that does not run both the Sun Solstice Enterprise Master
    Agent, sndmpx, and the Sun SNMP agent, mibiisa, is not vulnerable to
    this issue.  The format string vulnerability was discovered by Sinan
    Eren of Entercept Security Technologies' Ricochet Team.

    Entercept's Ricochet Security Advisory Advisory is available from:

    http://www.entercept.com/dr/snmp/

4.  List of Patches

    The following patches are in the process of being propagated to the
    worldwide SunSolve sites and should be available in the very near
    future:

    OS Version               Patch ID
    __________               _________
    SunOS 5.8                108869-16
    SunOS 5.8_x86            108870-16
    SunOS 5.7                107709-19
    SunOS 5.7_x86            107710-19
    SunOS 5.6                106787-18
    SunOS 5.6_x86            106872-18
_______________________________________________________________________________
Sun acknowledges with thanks, Sinan Eren and Entercept's Ricochet Team for
for bringing this issue to our attention and working with us on this
advisory.
_______________________________________________________________________________

APPENDICES

A.  Patches listed in this bulletin are available to all Sun customers at:

    http://sunsolve.sun.com/securitypatch

B.  Checksums for the patches listed in this bulletin are available at:

    ftp://sunsolve.sun.com/pub/patches/CHECKSUMS

C.  Sun security bulletins are available at:

    http://sunsolve.sun.com/security

D.  Sun Security Coordination Team's PGP key is available at:

    http://sunsolve.sun.com/pgpkey.txt

E.  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

F.  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 topic      A short status summary or bulletin. For example, to
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                        following in the subject line (not body):

                                send #138

        subscribe       Sender is added to our mailing list.  To subscribe,
                        supply the following in the subject line (not body):

                                subscribe cws your-email-address

                        Note that your-email-address should be substituted
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________________________________________________________________________________

Copyright 2002 Sun Microsystems, Inc. All rights reserved. Sun,
Sun Microsystems, Solaris and SunOS are trademarks or registered trademarks
of Sun Microsystems, Inc. in the United States and other countries. This
Security Bulletin may be reproduced and distributed, provided that this
Security Bulletin is not modified in any way and is attributed to
Sun Microsystems, Inc. and provided that such reproduction and distribution
is performed for non-commercial purposes.

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