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AUSCERT External Security Bulletin Redistribution
ESB-2002.423 -- SGI Security Advisory
Bulk Data Services (BDS) vulnerability
13 August 2002
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Bulk Data Service (BDSPro) prior to 2.5
Vendor: SGI
Operating System: IRIX 6.5.16 and prior
Impact: Read-only Data Access
Access Required: Remote
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_____________________________________________________________________________
SGI Security Advisory
Title: Bulk Data Services (BDS) vulnerability
Number: 20020804-01-P
Date: August 12, 2002
Reference: CAN-2002-0632
_____________________________________________________________________________
- - -----------------------
- - --- Issue Specifics ---
- - -----------------------
It's been reported that under certain conditions, SGI's BDS (Bulk Data
Service) software can be tricked to give a client read access to any file on
a server system where BDS is running.
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 vulnerability has been fixed with a patch for BDSPro 2.4 and in later
versions of BDSPro.
- - --------------
- - --- Impact ---
- - --------------
BDS is an optional product and is not installed by default. To check if
BDS is installed on your system, execute the following command:
# versions bds.eoe.server
If the output looks like the following, then BDS is installed.
I = Installed, R = Removed
Name Date Description
I bds 01/08/2002 Bulk Data Server, version 2.4
I bds.eoe 01/08/2002 Bulk Data Server Software
I bds.eoe.server 01/08/2002 Bulk Data Server Software 2.4
This vulnerability may be exploited by a remote user, and no local account
is required.
This issue has been corrected in BDSPro 2.5 and later versions.
This vulnerability has been assigned the following CVE:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0632
- - ----------------------------
- - --- Temporary Workaround ---
- - ----------------------------
Apart from not running BDSPro, there is no effective workaround available
for this issue. See solution section below.
- - ----------------
- - --- Solution ---
- - ----------------
SGI has provided a patch for these vulnerabilities. The patch relies on
hooks in the kernel that are not present until IRIX 6.5.13 to fix the
vulnerabilities. SGI recommends either installing the patch for BDSPro 2.4
or upgrading to BDSPro 2.5 or later when it is released (on an IRIX 6.5.13+
system).
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 yes Notes 2 & 3
IRIX 6.5.1 yes Notes 2 & 3
IRIX 6.5.2 yes Notes 2 & 3
IRIX 6.5.3 yes Notes 2 & 3
IRIX 6.5.4 yes Notes 2 & 3
IRIX 6.5.5 yes Notes 2 & 3
IRIX 6.5.6 yes Notes 2 & 3
IRIX 6.5.7 yes Notes 2 & 3
IRIX 6.5.8 yes Notes 2 & 3
IRIX 6.5.9 yes Notes 2 & 3
IRIX 6.5.10 yes Notes 2 & 3
IRIX 6.5.11 yes Notes 2 & 3
IRIX 6.5.12 yes Notes 2 & 3
IRIX 6.5.13 yes 4713 Notes 2 & 3
IRIX 6.5.14 yes 4713 Notes 2 & 3
IRIX 6.5.15 yes 4713 Notes 2 & 3
IRIX 6.5.16 yes 4713 Notes 2 & 3
NOTES
1) This version of the IRIX operating has been retired. Upgrade to an
actively supported IRIX operating system. See
http://support.sgi.com/irix/news/index.html#policy 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/irix/swupdates/
3) Upgrade to IRIX 6.5.13 or a later version of IRIX plus BDSPro 2.4
and patch 4713, or upgrade to BDSPro 2.5 when it becomes available.
##### Patch File Checksums ####
The actual patch will be a tar file containing the following files:
Filename: README.patch.4713
Algorithm #1 (sum -r): 63358 8 README.patch.4713
Algorithm #2 (sum): 46581 8 README.patch.4713
MD5 checksum: BB34943B63D677A72ECFF0CB4362B23E
Filename: patchSG0004713
Algorithm #1 (sum -r): 22226 1 patchSG0004713
Algorithm #2 (sum): 34070 1 patchSG0004713
MD5 checksum: 75FC332B07C75319987F4004DBBD5757
Filename: patchSG0004713.bds_eoe
Algorithm #1 (sum -r): 16577 190 patchSG0004713.bds_eoe
Algorithm #2 (sum): 50484 190 patchSG0004713.bds_eoe
MD5 checksum: 75AA1C002E24BA2C771093CB36BC4E55
Filename: patchSG0004713.idb
Algorithm #1 (sum -r): 48805 2 patchSG0004713.idb
Algorithm #2 (sum): 50458 2 patchSG0004713.idb
MD5 checksum: A804C1F557D80EFF45C1D975FCAB445F
- - ------------------------
- - --- Acknowledgments ----
- - ------------------------
SGI wishes to thank Sandia Labs 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/irix/ 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/linux/ or
http://oss.sgi.com/projects/sgilinux-combined/download/security-fixes/
SGI patches for Windows NT or 2000 can be found at:
http://support.sgi.com/nt/
IRIX 5.2-6.4 Recommended/Required Patch Sets can be found at:
http://support.sgi.com/irix/ and ftp://patches.sgi.com/support/patchset/
IRIX 6.5 Maintenance Release Streams can be found at:
http://support.sgi.com/colls/patches/tools/relstream/index.html
IRIX 6.5 Software Update CDs can be obtained from:
http://support.sgi.com/irix/swupdates/
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@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 (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@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
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@sgi.com
subscribe wiretap <YourEmailAddress>
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@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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