__________________________________________________________
The U.S. Department of Energy
Computer Incident Advisory Capability
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__________________________________________________________
INFORMATION BULLETIN
SGI Websetup/Webmin Security Vulnerability
[SGI Security Advisory 20030602-01-I]
June 9, 2003 21:00 GMT Number N-106
______________________________________________________________________________
PROBLEM: miniserv.pl in Webmin before 1.070 does not properly handle
metacharacters such as line feeds and carriage returns (CRLF)
in Base-64 encoded strings during Basic authentication.
PLATFORM: IRIX 6.5 systems
DAMAGE: Remote attackers could spoof a session ID and gain root
privileges.
SOLUTION: Upgrade as recommended by SGI in their security advisory.
______________________________________________________________________________
VULNERABILITY The risk is HIGH. The websetup package is installed by default
ASSESSMENT: on IRIX 6.5 systems. Remote access to the web administrator
program could act as a pipeline to the server for an attacker.
______________________________________________________________________________
LINKS:
CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/n-106.shtml
______________________________________________________________________________
[***** Start SGI Security Advisory 20030602-01-I *****]
-----BEGIN PGP SIGNED MESSAGE-----
______________________________________________________________________________
SGI Security Advisory
Title : WebSetup / WebMin Security Vulnerability
Number : 20030602-01-I
Date : June 9, 2003
Reference: SGI BUG 882560
Reference: CVE CAN-2003-0101
Fixed in : websetup v 3.5 package from IRIX 6.5.20 Applications CD
______________________________________________________________________________
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 IRIX's websetup package (which uses WebMin) has a
security problem that allows unauthenticated remote access to Webmin.
For more information, see:
http://www.webmin.com/updates.html
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0101
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.
These issues have been corrected with the 6.5.20 webmin 1.070 package and
in future releases of IRIX.
- --------------
- --- Impact ---
- --------------
The websetup package is installed by default on IRIX 6.5 systems as
"websetup.sw.eoe".
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 6.5.19f
The first number ("6.5") is the release name, the second ("6.5.16f" in this
case) is the extended release name. The extended release name is the
"version" we refer to throughout this document.
To see if websetup is installed, execute the following command:
$ versions -b websetup
I = Installed, R = Removed
Name Date Description
I websetup 11/19/2002 Web Setup and Administration, 3.4
If the result is similar to the above, then websetup is installed and the
system may be vulnerable.
- ----------------------------
- --- Temporary Workaround ---
- ----------------------------
There is no effective workaround available for these problems if you want to
use the websetup package. If you don't need it, then you can remove the
package with "versions remove websetup". SGI recommends either upgrading to
IRIX 6.5.20, or installing the websetup v 3.5 package from the listing below.
- ----------------
- --- Solution ---
- ----------------
SGI has provided the websetup v3.5 package from IRIX 6.5.20 Apps CD for
these vulnerabilities. Our recommendation is to upgrade to IRIX 6.5.20
when available, or install the upgraded websetup package.
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 Notes 2 & 3
IRIX 6.5.14 yes Notes 2 & 3
IRIX 6.5.15 yes Notes 2 & 3
IRIX 6.5.16 yes Notes 2 & 3
IRIX 6.5.17 yes Notes 2 & 3
IRIX 6.5.18 yes Notes 2 & 3
IRIX 6.5.19 yes Notes 2 & 3
IRIX 6.5.20 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 a set of IRIX 6.5.X CDs for IRIX 6.5,
contact your SGI Support Provider or URL: http://support.sgi.com
3) Upgrade to IRIX 6.5.20 (when available) or install the websetup v3.5
package from IRIX 6.5.20 Applications CD which can be downloaded
from ftp://patches.sgi.com/support/free/security/patches/6.5.20/
##### Patch File Checksums ####
The actual patch will be a tar file containing the following files:
Filename: websetup
Algorithm #1 (sum -r): 26123 4 websetup
Algorithm #2 (sum): 11460 4 websetup
MD5 checksum: 2803CC0DB06B007D719C674450B4C4DE
Filename: websetup.idb
Algorithm #1 (sum -r): 04317 285 websetup.idb
Algorithm #2 (sum): 54507 285 websetup.idb
MD5 checksum: DB9AE12627CC05B9287AFE901B5D0330
Filename: websetup.man
Algorithm #1 (sum -r): 21757 63 websetup.man
Algorithm #2 (sum): 30028 63 websetup.man
MD5 checksum: 8C6842A415113FB95F5FE841C7DCF508
Filename: websetup.sw
Algorithm #1 (sum -r): 31890 2992 websetup.sw
Algorithm #2 (sum): 24739 2992 websetup.sw
MD5 checksum: E556C491FF079416650B4A7FF84AACC7
- ------------------------
- --- Acknowledgments ----
- ------------------------
SGI wishes to thank FIRST 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 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. 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
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 such as aaanalyst@sgi.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@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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[***** End SGI Security Advisory 20030602-01-I *****]
_______________________________________________________________________________
CIAC wishes to acknowledge the contributions of Silicon Graphics, Inc. for the
information contained in this bulletin.
_______________________________________________________________________________
CIAC, the Computer Incident Advisory Capability, is the computer
security incident response team for the U.S. Department of Energy
(DOE) and the emergency backup response team for the National
Institutes of Health (NIH). CIAC is located at the Lawrence Livermore
National Laboratory in Livermore, California. CIAC is also a founding
member of FIRST, the Forum of Incident Response and Security Teams, a
global organization established to foster cooperation and coordination
among computer security teams worldwide.
CIAC services are available to DOE, DOE contractors, and the NIH. CIAC
can be contacted at:
Voice: +1 925-422-8193 (7x24)
FAX: +1 925-423-8002
STU-III: +1 925-423-2604
E-mail: ciac@ciac.org
Previous CIAC notices, anti-virus software, and other information are
available from the CIAC Computer Security Archive.
World Wide Web: http://www.ciac.org/
Anonymous FTP: ftp.ciac.org
PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing
communities receive CIAC bulletins. If you are not part of these
communities, please contact your agency's response team to report
incidents. Your agency's team will coordinate with CIAC. The Forum of
Incident Response and Security Teams (FIRST) is a world-wide
organization. A list of FIRST member organizations and their
constituencies can be obtained via WWW at http://www.first.org/.
This document was prepared as an account of work sponsored by an
agency of the United States Government. Neither the United States
Government nor the University of California nor any of their
employees, makes any warranty, express or implied, or assumes any
legal liability or responsibility for the accuracy, completeness, or
usefulness of any information, apparatus, product, or process
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