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Sun Microsystems, Inc. Security Bulletin
Bulletin Number: #00215
Date: February 12, 2002
Cross-Ref: CERT Advisory CA-2002-03
Title: snmpdx
________________________________________________________________________________
The information contained in this Security Bulletin is provided "AS IS."
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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 a buffer
overflow in snmpdx(1M).
Sun recommends that you install the patches listed in section 4
immediately on systems running the Sun Solstice Enterprise
Master Agent, snmpdx(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 master agent runs as a daemon with root privileges on
the system. The snmpdx daemon is started by default via the
/etc/rc3.d/S76snmpdx script. A buffer overflow has been discovered
in snmpdx 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 the Sun Solstice Enterprise Master Agent, sndmpx, is not
vulnerable to this issue. This issue was discovered by the Oulu
University Secure Programming Group (OUSPG) who developed a PROTOS
test suite for SNMPv1. Information regarding the PROTOS project is
available here:
http://www.ee.oulu.fi/research/ouspg/protos/
CERT Advisory CA-2002-03 is available from:
http://www.cert.org/advisories/CA-2002-03.html
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 108869-15
SunOS 5.8_x86 108870-15
SunOS 5.7 107709-18
SunOS 5.7_x86 107710-18
SunOS 5.6 106787-17
SunOS 5.6_x86 106872-17
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Sun acknowledges with thanks, the Oulu University Secure Group (OUSPG),
(http://www.ee.oulu.fi/research/ouspg/) for bringing this issue to our
attention.
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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
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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
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