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Message-ID: <Pine.SGI.4.56.0309291326490.344742@einstein.csd.sgi.com>
From: agent99 at sgi.com (SGI Security Coordinator)
Subject: sendmail prescan() vulnerability on IRIX
-----BEGIN PGP SIGNED MESSAGE-----
______________________________________________________________________________
SGI Security Advisory
Title: sendmail prescan() vulnerability
Number: 20030903-01-P
Date: September 29, 2003
Reference: CERT CA-2003-25
Reference: CAN-2003-0694
Reference: SGI BUG 900772
Fixed in: IRIX 6.5.22 or patches 5325 and 5326
______________________________________________________________________________
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 vulnerability in
sendmail could allow a remote attacker to execute arbitrary code with
the privileges of the sendmail daemon, typically root. This effects
all versions of sendmail including the latest version, 8.12.9.
For more details please see:
http://www.cert.org/advisories/CA-2003-25.html
http://www.kb.cert.org/vuls/id/784980
http://lists.netsys.com/pipermail/full-disclosure/2003-September/010287.html
The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CAN-2003-0694 to this issue:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0694
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 ---
- --------------
sendmail is install by default on IRIX.
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.
If the output shows a release below 6.5.22, then the system may be
vulnerable unless patched.
- ----------------------------
- --- Temporary Workaround ---
- ----------------------------
There is no effective workaround available for this vulnerability.
SGI understands that there are times when upgrading the operating system or
installing patches are inconvenient or not possible. In those instances,
we recommend to run the following as root:
# chkconfig sendmail off
# /etc/init.d/sendmail stop
Of course, you will no longer have the services of the sendmail server
after doing this.
SGI recommends either upgrading to IRIX 6.5.22 (when available),
or installing the appropriate patch 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 2
IRIX 6.5.1 no Notes 2
IRIX 6.5.2 no Notes 2
IRIX 6.5.3 no Notes 2
IRIX 6.5.4 no Notes 2
IRIX 6.5.5 no Notes 2
IRIX 6.5.6 no Notes 2
IRIX 6.5.7 no Notes 2
IRIX 6.5.8 no Notes 2
IRIX 6.5.9 no Notes 2
IRIX 6.5.10 no Notes 2
IRIX 6.5.11 no Notes 2
IRIX 6.5.12 no Notes 2
IRIX 6.5.13 no Notes 2
IRIX 6.5.14 no Notes 2
IRIX 6.5.15 yes 5326 Notes 2 & 3
IRIX 6.5.16 yes 5326 Notes 2 & 3
IRIX 6.5.17m yes 5326 Notes 2 & 3
IRIX 6.5.17f yes 5326 Notes 2 & 3
IRIX 6.5.18m yes 5326 Notes 2 & 3
IRIX 6.5.18f yes 5326 Notes 2 & 3
IRIX 6.5.19m yes 5325 Notes 2 & 3
IRIX 6.5.19f yes 5325 Notes 2 & 3
IRIX 6.5.20m yes 5325 Notes 2 & 3
IRIX 6.5.20f yes 5325 Notes 2 & 3
IRIX 6.5.21m yes 5325 Notes 2 & 3
IRIX 6.5.21f yes 5325 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.5325
Algorithm #1 (sum -r): 09719 10 README.patch.5325
Algorithm #2 (sum): 45117 10 README.patch.5325
MD5 checksum: A4CBCEFAF0DEAC02547FE28E3F96DE25
Filename: patchSG0005325
Algorithm #1 (sum -r): 43281 4 patchSG0005325
Algorithm #2 (sum): 16979 4 patchSG0005325
MD5 checksum: 30C299D0A4A769502B119901103DA176
Filename: patchSG0005325.eoe_src
Algorithm #1 (sum -r): 46646 378 patchSG0005325.eoe_src
Algorithm #2 (sum): 2177 378 patchSG0005325.eoe_src
MD5 checksum: CFF0F5ABB9184F94DD7DD401D99FD480
Filename: patchSG0005325.eoe_sw
Algorithm #1 (sum -r): 25577 1104 patchSG0005325.eoe_sw
Algorithm #2 (sum): 50436 1104 patchSG0005325.eoe_sw
MD5 checksum: 74A68DFEDFFF4E69B9F604EC39E11CCA
Filename: patchSG0005325.idb
Algorithm #1 (sum -r): 52566 4 patchSG0005325.idb
Algorithm #2 (sum): 23751 4 patchSG0005325.idb
MD5 checksum: 04FC1A96D695890B218C2A775FDF0506
Filename: README.patch.5326
Algorithm #1 (sum -r): 26888 10 README.patch.5326
Algorithm #2 (sum): 39764 10 README.patch.5326
MD5 checksum: 8B05AFCB0ED432B275577D5BC4F239EF
Filename: patchSG0005326
Algorithm #1 (sum -r): 50468 5 patchSG0005326
Algorithm #2 (sum): 36982 5 patchSG0005326
MD5 checksum: 4E67239FCBA46EFE0B1DF506B4F8B472
Filename: patchSG0005326.eoe_src
Algorithm #1 (sum -r): 59307 302 patchSG0005326.eoe_src
Algorithm #2 (sum): 19983 302 patchSG0005326.eoe_src
MD5 checksum: 9FA915EE75D1309F7668FF7370DB4845
Filename: patchSG0005326.eoe_sw
Algorithm #1 (sum -r): 20247 664 patchSG0005326.eoe_sw
Algorithm #2 (sum): 47682 664 patchSG0005326.eoe_sw
MD5 checksum: 03027855CE6F3549F5051255C6A9284C
Filename: patchSG0005326.idb
Algorithm #1 (sum -r): 33356 4 patchSG0005326.idb
Algorithm #2 (sum): 29499 4 patchSG0005326.idb
MD5 checksum: 619CEC1B014DF80EEC6B4FC344941EF4
- ------------------------
- --- Acknowledgments ----
- ------------------------
SGI wishes to thank sendmail.org and the users of the Internet Community
at large for their assistance in this matter.
- -------------
- --- 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.
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subscribe wiretap < YourEmailAddress such as midwatch@....com >
end
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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@....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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