-----BEGIN PGP SIGNED MESSAGE----- ________________________________________________________________________________ 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 _______ _________________________________ help An explanation of how to get information key Sun Security Coordination Team's PGP key list A list of current security topics query [topic] The email is treated as an inquiry and is forwarded to the Security Coordination Team report [topic] The email is treated as a security report and is forwarded to the Security Coordination Team. 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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. -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBPPvpGLdzzzOFBFjJAQFh2QP9FQQLcRt1Dkbh0dkKpYoAcfhswdGl2tWc RJRND28e2l2ydW/49uNo548VBeS55Bay0gf3lIBT/w/gy3aZa75rnifGMAiw6tRB Sf2nvQ/d9tOTr+9sqXz9ZP8BQz+INRcduV5iFUJ8zRzEwGxmw3yubdWylBZI0CVH 3HQUCcZIgzQ= =lsbn -----END PGP SIGNATURE-----