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From: agent99 at sgi.com (SGI Security Coordinator)
Subject: IRIX 6.5.21 NFS export vulnerability
-----BEGIN PGP SIGNED MESSAGE-----
______________________________________________________________________________
SGI Security Advisory
Title: IRIX 6.5.21 NFS export vulnerability
Number: 20030901-01-P
Date: September 16, 2003
Reference: CVE CAN-2003-0680
Reference: SGI BUG 899846
Fixed in: Patches 5317 and 5318 for IRIX 6.5.21
______________________________________________________________________________
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 has been reported that under certain conditions a NFS client can
avoid read-only restrictions on filesystems exported via NFS from a
server running IRIX 6.5.21 and mount them in read/write mode.
The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CAN-2003-0680 to this vulnerability:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0680
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. This issue has been
corrected in future releases of IRIX.
- --------------
- --- Impact ---
- --------------
To determine the version of IRIX you are running, execute the following
command:
# /bin/uname -R
That will return a result similar to the following:
# 6.5 6.5.21f
The first number ("6.5") is the release name, the second ("6.5.21f" in
this case) is the extended release name. The extended release name
is the "version" we refer to throughout this document.
- ----------------------------
- --- Temporary Workaround ---
- ----------------------------
There is no effective workaround available for this vulnerability.
SGI recommends either upgrading to IRIX 6.5.22 (when available),
or installing the appropriate patch for IRIX 6.5.21 from the listing below.
- ----------------
- --- Solution ---
- ----------------
SGI has provided a series of patches for these vulnerabilities. Our
recommendation is to upgrade to IRIX 6.5.22, or install the appropriate
patch.
OS Version Vulnerable? Patch # Other Actions
- ---------- ----------- ------- -------------
IRIX 3.x unknown Note 1
IRIX 4.x unknown Note 1
IRIX 5.x unknown Note 1
IRIX 6.0.x unknown Note 1
IRIX 6.1 unknown Note 1
IRIX 6.2 unknown Note 1
IRIX 6.3 unknown Note 1
IRIX 6.4 unknown Note 1
IRIX 6.5 no Notes 1
IRIX 6.5.1 no Notes 1
IRIX 6.5.2 no Notes 1
IRIX 6.5.3 no Notes 1
IRIX 6.5.4 no Notes 1
IRIX 6.5.5 no Notes 1
IRIX 6.5.6 no Notes 1
IRIX 6.5.7 no Notes 1
IRIX 6.5.8 no Notes 1
IRIX 6.5.9 no Notes 1
IRIX 6.5.10 no Notes 1
IRIX 6.5.11 no Notes 1
IRIX 6.5.12 no Notes 1
IRIX 6.5.13 no Notes 1
IRIX 6.5.14 no Notes 1
IRIX 6.5.15 no Notes 1
IRIX 6.5.16 no Notes 1
IRIX 6.5.17 no Notes 1
IRIX 6.5.18m no Notes 2
IRIX 6.5.18f no Notes 2
IRIX 6.5.19m no Notes 2
IRIX 6.5.19f no Notes 2
IRIX 6.5.20m no Notes 2
IRIX 6.5.20f no Notes 2
IRIX 6.5.21m yes 5317 Notes 2 & 3
IRIX 6.5.21f yes 5318 Notes 2 & 3
IRIX 6.5.22 no
NOTES
1) This version of the IRIX operating has been retired.
Upgrade to an actively supported IRIX operating system.
See http://support.sgi.com for more information.
2) If you have not received an IRIX 6.5.X CD for IRIX 6.5, contact
your SGI Support Provider or URL: http://support.sgi.com
3) Install the required patch(es) based on your operating release.
##### Patch File Checksums ####
Filename: README.patch.5317
Algorithm #1 (sum -r): 58922 9 README.patch.5317
Algorithm #2 (sum): 7391 9 README.patch.5317
MD5 checksum: 50A9B7DC82EFF1FAF96AC77DB44C5F58
Filename: patchSG0005317
Algorithm #1 (sum -r): 43256 2 patchSG0005317
Algorithm #2 (sum): 62576 2 patchSG0005317
MD5 checksum: 1C50658B51328CF571CB2EBF30A1252D
Filename: patchSG0005317.eoe_sw
Algorithm #1 (sum -r): 55756 2261 patchSG0005317.eoe_sw
Algorithm #2 (sum): 24968 2261 patchSG0005317.eoe_sw
MD5 checksum: FF2AE9E7C86A717190B4DDE40EEBC8DD
Filename: patchSG0005317.idb
Algorithm #1 (sum -r): 61112 26 patchSG0005317.idb
Algorithm #2 (sum): 8958 26 patchSG0005317.idb
MD5 checksum: 6775EFB2B97576F07803FAE9D77C75B9
Filename: patchSG0005317.nfs_sw
Algorithm #1 (sum -r): 29306 5331 patchSG0005317.nfs_sw
Algorithm #2 (sum): 62999 5331 patchSG0005317.nfs_sw
MD5 checksum: 6415ADF1E4ADFB0D412AD7083D6CB2B8
Filename: README.patch.5318
Algorithm #1 (sum -r): 11334 9 README.patch.5318
Algorithm #2 (sum): 7077 9 README.patch.5318
MD5 checksum: 0180730DDEC857D08021602A6C4F19B9
Filename: patchSG0005318
Algorithm #1 (sum -r): 17201 2 patchSG0005318
Algorithm #2 (sum): 65068 2 patchSG0005318
MD5 checksum: E5230214F4D45719E089E66242377053
Filename: patchSG0005318.eoe_sw
Algorithm #1 (sum -r): 61230 2281 patchSG0005318.eoe_sw
Algorithm #2 (sum): 9254 2281 patchSG0005318.eoe_sw
MD5 checksum: 7444298E987C8556DFEBF81FA199DD85
Filename: patchSG0005318.idb
Algorithm #1 (sum -r): 11527 26 patchSG0005318.idb
Algorithm #2 (sum): 8870 26 patchSG0005318.idb
MD5 checksum: D5CD8B34434E78BE55D3411FDB053F09
Filename: patchSG0005318.nfs_sw
Algorithm #1 (sum -r): 30425 5435 patchSG0005318.nfs_sw
Algorithm #2 (sum): 9952 5435 patchSG0005318.nfs_sw
MD5 checksum: FE7D3F51EF9183A605FBD463760E8A3E
- -------------
- --- Links ---
- -------------
Patches are available via the web, anonymous FTP and from your SGI
service/support provider.
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 fixes for SGI open sourced code can be found on:
http://oss.sgi.com/projects/
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 (216.32.174.211). 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@....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 (216.32.174.211). 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@....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 SGI Security Advisories when they are released. Subscribing to the
mailing list can be done via the Web
(http://www.sgi.com/support/security/wiretap.html)
or by sending email to SGI as outlined below.
% mail wiretap-request@....com
subscribe wiretap <YourEmailAddress such as aaanalyst@....com >
end
^d
In the example above, <YourEmailAddress> is the email address that you
wish the mailing list information sent to. The word end must be on a
separate line to indicate the end of the body of the message. The
control-d (^d) is used to indicate to the mail program that you are
finished composing the mail message.
------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@....com.
For reporting *NEW* SGI security issues, email can be sent to
security-alert@....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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