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__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ 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. -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBPuTAfbQ4cFApAP75AQFveAQAs+b+cIBgXyvbqDrSv9AIrq/Tpv1BWEfx tRVySFk4IeJaWA3co8OKtK5HN+TsEcxXGQr5viTw56jAycFwCM1UZi37mksx96Sk twuIR5cVYQJPTZkE/oS5NNUKRfH2g7JDlu5u0fjnBW8jCc9WIgIimCAKDFO9951C WUlgW0RPgLI= =twDb -----END PGP SIGNATURE----- [***** 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 disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation or favoring by the United States Government or the University of California. 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