-----BEGIN PGP SIGNED MESSAGE----- __________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN SGI Netscape Navigator Vulnerabilities April 3, 1998 21:00 GMT Number I-040 ______________________________________________________________________________ PROBLEM: Several privacy vulnerabilities ("Tracker Bug" and "Bell Labs Privacy Bug") have been discovered in the Netscape Navigator program. PLATFORM: IRIX 6.2+ operating systems. DAMAGE: If a user accesses a malicious web server, the malicious web server may obtain unauthorized access to cookie and form submission information on the user's computer. SOLUTION: Install or upgrade to Netscape Navigator version 3.04 or later. ______________________________________________________________________________ VULNERABILITY Silicon Graphics Inc. has investigated the issue and recommends ASSESSMENT: 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 publically discussed. ______________________________________________________________________________ [ Start Silicon Graphics Inc Advisory ] - -----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ Silicon Graphics Inc. Security Advisory Title: Netscape Navigator Security Vulnerabilities Number: 19980303-01-P Date: March 26, 1998 ______________________________________________________________________________ Silicon Graphics provides this information freely to the SGI user community for its consideration, interpretation, implementation and use. Silicon Graphics recommends that this information be acted upon as soon as possible. Silicon Graphics 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 Silicon Graphics 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 --- - ------------------------ Netscape Navigator is a web browser program for accessing the World Wide Web (WWW). During regular use, Netscape Navigator makes use of record keeping mechanisms known as cookies and submission forms. Several privacy vulnerabilities ("Tracker Bug" and "Bell Labs Privacy Bug") have been discovered in the Netscape Navigator program which allow malicious web servers to obtain unauthorized access to cookie and form submission information. Silicon Graphics Inc. 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. - --------------- - ---- Impact --- - --------------- Netscape Navigator is installed by default on IRIX 6.2+ operating systems, during the installation of IRIX Application CD and Desktop Special Edition (DSE) CD or web product software bundles like the WebFORCE CDs. The exploit requires a user to browse a malicious web server. This vulnerability has been publically discussed and more information can be found on Netscape's Security Note Web Page: http://home.netscape.com/assist/security/resources/notes.html and on Netscape's Security Home Page: http://home.netscape.com/assist/security/index.html - ----------------- - ---- Solution --- - ----------------- The solution to this issue is to install or upgrade to version 3.04 or later of the Netscape Navigator program. To see which version of Netscape you have currently installed, run netscape and in the 'Help' menu choose 'About Netscape.' Silicon Graphics provides a customized Netscape Navigator 3.04 subsystem for IRIX 5.3, 6.2, 6.3 and 6.4 and it can be found at the following URL: http://www.sgi.com/Products/Evaluation/ Generic, unsupported versions can be found at Netscape's Netcenter Web Site: http://home.netscape.com/download/ - ------------------------- - ---- Acknowledgments --- - ------------------------- Silicon Graphics wishes to thank Netscape, the CERT Coordination Center, and the Internet Community at large for their assistance in this issue. - ------------------------------------------------------------ - ---- Silicon Graphics Inc. Security Information/Contacts --- - ------------------------------------------------------------ If there are questions about this document, email can be sent to cse-security-alert@sgi.com. ------oOo------ Silicon Graphics 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 information and patches is sgigate.sgi.com (204.94.209.1). Security information and patches are located under the directories ~ftp/security and ~ftp/patches, respectively. The Silicon Graphics Security Headquarters Web page is accessible at the URL http://www.sgi.com/Support/security/security.html. For issues with the patches on the FTP sites, email can be sent to cse-security-alert@sgi.com. For assistance obtaining or working with security patches, please contact your SGI support provider. ------oOo------ Silicon Graphics 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 end ^d In the example above, 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------ Silicon Graphics provides a comprehensive customer World Wide Web site. This site is located at http://www.sgi.com/Support/security/security.html. ------oOo------ 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, Silicon Graphics is appropriately credited and the document retains and includes its valid PGP signature. - -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBNRrSVbQ4cFApAP75AQE14wP/b+rU6GWWTcO8ik1bfrjXacHwQ9LfJMwi mi5CX7sZt3IFuFlmrrfYwX2o1iGz+lI4t099Fhfq+JkoVo8JitItm35DzC05pnbw OkTFyhpAVvUkRWzvktAAGS2vIThMJG2zgY62QAp8aJW63Svnn5zEnSGLlKjdPEDm 5LrwOBAL4wo= =3Z/C - -----END PGP SIGNATURE----- [ End Silicon Graphics Inc Advisory ] ______________________________________________________________________________ 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 FAX: +1 925-423-8002 STU-III: +1 925-423-2604 E-mail: ciac@llnl.gov For emergencies and off-hour assistance, DOE, DOE contractor sites, and the NIH may contact CIAC 24-hours a day. During off hours (5PM - 8AM PST), call the CIAC voice number 925-422-8193 and leave a message, or call 800-759-7243 (800-SKY-PAGE) to send a Sky Page. CIAC has two Sky Page PIN numbers, the primary PIN number, 8550070, is for the CIAC duty person, and the secondary PIN number, 8550074 is for the CIAC Project Leader. Previous CIAC notices, anti-virus software, and other information are available from the CIAC Computer Security Archive. World Wide Web: http://www.ciac.org/ (or http://ciac.llnl.gov -- they're the same machine) Anonymous FTP: ftp.ciac.org (or ciac.llnl.gov -- they're the same machine) Modem access: +1 (925) 423-4753 (28.8K baud) +1 (925) 423-3331 (28.8K baud) CIAC has several self-subscribing mailing lists for electronic publications: 1. CIAC-BULLETIN for Advisories, highest priority - time critical information and Bulletins, important computer security information; 2. SPI-ANNOUNCE for official news about Security Profile Inspector (SPI) software updates, new features, distribution and availability; 3. SPI-NOTES, for discussion of problems and solutions regarding the use of SPI products. Our mailing lists are managed by a public domain software package called Majordomo, which ignores E-mail header subject lines. To subscribe (add yourself) to one of our mailing lists, send the following request as the E-mail message body, substituting ciac-bulletin, spi-announce OR spi-notes for list-name: E-mail to ciac-listproc@llnl.gov or majordomo@tholia.llnl.gov: subscribe list-name e.g., subscribe ciac-bulletin You will receive an acknowledgment email immediately with a confirmation that you will need to mail back to the addresses above, as per the instructions in the email. This is a partial protection to make sure you are really the one who asked to be signed up for the list in question. If you include the word 'help' in the body of an email to the above address, it will also send back an information file on how to subscribe/unsubscribe, get past issues of CIAC bulletins via email, etc. 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. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or the University of California, and shall not be used for advertising or product endorsement purposes. LAST 10 CIAC BULLETINS ISSUED (Previous bulletins available from CIAC) I-030: SunOS volrmmount (1) Vulnerability I-031A: WindowsNT-95 Attacks on DOE Sites I-032: Sun Solaris Vulnerabilities (vacation, dtaction) I-033: Sun Solaris Vulnerabilities (ndd, rpc.cmsd) I-034: Internet Cookies I-035: SGI Vulnerabilities (startmidi/stopmidi, datman/cdman, cdplayer) I-036: FreeBSD Denial-of Service LAND Attacks I-037: FreeBSD mmap Vulnerability I-038: Ascend Routing Hardware Vulnerabilities I-039: HP-UX inetd Vulnerability -----BEGIN PGP SIGNATURE----- Version: 4.0 Business Edition iQCVAwUBNSlEnrnzJzdsy3QZAQFjLQQAzE2ZdS9htSTUVFSlDKW+Nmbgl1TEQ2zo Hv0i3VO39W24IeTVC6j7+BV2CuO96ly7sbuouXiV+M3CfbxE4jqiQLcKTrgE72qH +LQZqPFYSwkwHkYn6LJQeyhu67YYSmu+LGFpRwmfOSjYJN5qktJ4pnQ39LnK76vS B9MZ+obk6Oc= =LjAV -----END PGP SIGNATURE-----