Published:
28 July 2003
Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2003.0517 -- SGI Security Advisory 20030703-01-I
Emulex FibreChannel Hub Vulnerable to SNMP DoS Attack
28 July 2003
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AusCERT Security Bulletin Summary
---------------------------------
Product: Emulex FibreChannel Hub
Publisher: SGI
Impact: Denial of Service
Access Required: Remote
CVE Names: CAN-2002-0013
Ref: AL-2002.02
ESB-2002.065
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______________________________________________________________________________
SGI Security Advisory
Title : Emulex FibreChannel Hub Vulnerable to SNMP DoS Attack
Number : 20030703-01-I
Date : July 25, 2003
Reference : CERT CA-2002-03
Reference : CVE CAN-2002-0013
Reference : SGI BUG 882516
Fixed in : See Workaround
______________________________________________________________________________
SGI provides this information freely to the SGI user community for its
consideration, interpretation, implementation and use. SGI recommends that
this information be acted upon as soon as possible.
SGI provides the information in this Security Advisory on an "AS-IS" basis
only, and disclaims all warranties with respect thereto, express, implied
or otherwise, including, without limitation, any warranty of merchantability
or fitness for a particular purpose. In no event shall SGI be liable for
any loss of profits, loss of business, loss of data or for any indirect,
special, exemplary, incidental or consequential damages of any kind arising
from your use of, failure to use or improper use of any of the instructions
or information in this Security Advisory.
______________________________________________________________________________
- - -----------------------
- - --- Issue Specifics ---
- - -----------------------
It's been reported that the PROTOS smnp test suite can potentially be used
to disrupt the operations of the Emulex 1Gbit Fibre Channel Hub, resulting
in a Denial of Service.
For more information, see:
http://www.cert.org/advisories/CA-2002-03.html
http://xforce.iss.net/xforce/xfdb/8115
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0013
SGI has investigated the issue and recommends the following steps for
neutralizing the exposure. It is HIGHLY RECOMMENDED that these measures be
implemented on ALL vulnerable SGI systems.
- - --------------
- - --- Impact ---
- - --------------
The Emulex FibreChannel hub is an optional product and is not part of the
IRIX operating system. It is supplied by SGI as a component in certain
system configurations.
- - ------------------
- - --- Workaround ---
- - ------------------
SGI recommends the following workaround for this issue:
Use a router or other network device to block SNMP traffic destined for
the Emulex hub. Alternately, if you don't need to manage it via IP,
unplug it from the ethernet altogether. Doing so should not impact
FibreChannel operations.
- - ----------------
- - --- Solution ---
- - ----------------
SGI has not provided patches for these vulnerabilities. Our recommendation
is to follow the workaround instructions.
- - ------------------------
- - --- Acknowledgments ----
- - ------------------------
SGI wishes to thank U-Oulu and the users of the Internet Community at large
for their assistance in this matter.
- - -------------
- - --- Links ---
- - -------------
SGI Security Advisories can be found at:
http://www.sgi.com/support/security/ and
ftp://patches.sgi.com/support/free/security/advisories/
SGI Security Patches can be found at:
http://www.sgi.com/support/security/ and
ftp://patches.sgi.com/support/free/security/patches/
SGI patches for IRIX can be found at the following patch servers:
http://support.sgi.com/ and ftp://patches.sgi.com/
SGI freeware updates for IRIX can be found at:
http://freeware.sgi.com/
SGI patches and RPMs for Linux can be found at:
http://support.sgi.com
SGI patches for Windows NT or 2000 can be found at:
http://support.sgi.com/
IRIX 5.2-6.4 Recommended/Required Patch Sets can be found at:
http://support.sgi.com/ and ftp://patches.sgi.com/support/patchset/
IRIX 6.5 Maintenance Release Streams can be found at:
http://support.sgi.com/
IRIX 6.5 Software Update CDs can be obtained from:
http://support.sgi.com/
The primary SGI anonymous FTP site for security advisories and patches is
patches.sgi.com. Security advisories and patches are located under the URL
ftp://patches.sgi.com/support/free/security/
For security and patch management reasons, ftp.sgi.com (mirrors
patches.sgi.com security FTP repository) lags behind and does not do a
real-time update.
- - -----------------------------------------
- - --- SGI Security Information/Contacts ---
- - -----------------------------------------
If there are questions about this document, email can be sent to
security-info@sgi.com.
------oOo------
SGI provides security information and patches for use by the entire SGI
community. This information is freely available to any person needing the
information and is available via anonymous FTP and the Web.
The primary SGI anonymous FTP site for security advisories and patches is
patches.sgi.com. Security advisories and patches are located under the URL
ftp://patches.sgi.com/support/free/security/
The SGI Security Headquarters Web page is accessible at the URL:
http://www.sgi.com/support/security/
For issues with the patches on the FTP sites, email can be sent to
security-info@sgi.com.
For assistance obtaining or working with security patches, please
contact your SGI support provider.
------oOo------
SGI provides a free security mailing list service called wiretap and
encourages interested parties to self-subscribe to receive (via email) all
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------oOo------
SGI provides a comprehensive customer World Wide Web site. This site is
located at http://www.sgi.com/support/security/ .
------oOo------
If there are general security questions on SGI systems, email can be sent to
security-info@sgi.com.
For reporting *NEW* SGI security issues, email can be sent to
security-alert@sgi.com or contact your SGI support provider. A support
contract is not required for submitting a security report.
______________________________________________________________________________
This information is provided freely to all interested parties
and may be redistributed provided that it is not altered in any
way, SGI is appropriately credited and the document retains and
includes its valid PGP signature.
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