-----BEGIN PGP SIGNED MESSAGE----- __________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN IRIX netprint Program Security Vulnerability May 13, 1997 16:00 GMT Number H-55 ______________________________________________________________________________ PROBLEM: A security vulnerability exist in the /usr/lib/print/netprint program. PLATFORM: IRIX 5.3, 6.1 and 6.2, 6.3 and 6.4. DAMAGE: Using a local account to exploit this vulnerability, remote or local users may obtain unauthorized root access. SOLUTION: Apply patches or workaround as indicated below. ______________________________________________________________________________ VULNERABILITY Exploit details involving this vulnerability have been made ASSESSMENT: publicly available. ______________________________________________________________________________ [ Start SGI Security Advisory ] - -----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ Silicon Graphics Inc. Security Advisory Title: IRIX netprint Program Security Issues Number: 19961203-02-PX Date: May 8, 1997 ______________________________________________________________________________ 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 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. ______________________________________________________________________________ - - -------------- - - --- Update --- - - -------------- As part of on going security efforts, Silicon Graphics has replaced patch 1686 with patch 2022. The original text from SGI Security Advisory 19961203-01-PX has been updated to reflect this change. Silicon Graphics Engineering and Worldwide Customer Service divisions have become aware of a potential security issue in the /usr/lib/print/netprint program found in IRIX 5.3, 6.1 and 6.2, 6.3 and 6.4. 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 SGI systems running IRIX versions 5.3, 6.1, 6.2, 6.3 and 6.4. This issue will be corrected in future releases of IRIX. - - -------------- - - --- Impact --- - - -------------- The /usr/sbin/print/netprint program is used by the printing system installed on all SGI systems. A potential security vulnerability has been found that can result in root privileges being obtained. A local account is required in order to exploit this vulnerability both locally and remotely. Publicity of this vulnerability has been limited and has afforded SGI the opportunity to fully investigate this issue and provide the following information and solutions. - - ---------------- - - --- Solution --- - - ---------------- Although patches are available for this issue, it is realized that there may be situations where installing the patches immediately may not be possible. The steps below can be used to remove the vulnerability by removing the printing subsystem. *************** *** WARNING *** *************** Removing the print subsystem will remove all printing capability from the system. Installing the patches below is recommended over removal of the print subsystem. If the print subsystem is removed, at a later time when the patches below are to be installed, the print subsystem will first have to be reinstalled from original IRIX distribution CDs before the patches. 1) Become the root user on the system. % /bin/su - Password: # 2) Remove the vulnerable subsystem. # /usr/sbin/versions -v remove print 3) Return to previous level. # exit $ **** IRIX 3.x **** Silicon Graphics Inc, no longer supports the IRIX 3.x operating system and therefore has no patches or binaries to provide. **** IRIX 4.x **** This version of IRIX is not vulnerable. No action is required. **** IRIX 5.0.x, 5.1.x, 5.2 **** These versions of IRIX are not vulnerable. No action is required. **** IRIX 5.3, 6.1 **** For the IRIX operating system versions 5.3 and 6.1 an inst-able patch has been generated and made available via anonymous FTP and your service/support provider. The patch is number 1685 and will only install on IRIX 5.3 and 6.1. The SGI anonymous FTP site is sgigate.sgi.com (204.94.209.1) or its mirror, ftp.sgi.com. Patch 1685 can be found in the following directories on the FTP server: ~ftp/Security or ~ftp/Patches/5.3 ~ftp/Patches/6.1 ##### Checksums #### The actual patch will be a tar file containing the following files: Filename: README.patch.1685 Algorithm #1 (sum -r): 33112 8 README.patch.1685 Algorithm #2 (sum): 26410 8 README.patch.1685 MD5 checksum: 91C8238A36AC03839C910F5E8AA4D62A Filename: patchSG0001685 Algorithm #1 (sum -r): 44784 1 patchSG0001685 Algorithm #2 (sum): 30237 1 patchSG0001685 MD5 checksum: CCB7EB0A9E1AE7464FB0F88FA05C2672 Filename: patchSG0001685.idb Algorithm #1 (sum -r): 25112 1 patchSG0001685.idb Algorithm #2 (sum): 39883 1 patchSG0001685.idb MD5 checksum: D124D5F9E2F363F3500A496D393CD2D3 Filename: patchSG0001685.print_sw Algorithm #1 (sum -r): 13809 21 patchSG0001685.print_sw Algorithm #2 (sum): 44124 21 patchSG0001685.print_sw MD5 checksum: AE6A66F1F7854D37BACDB43773941730 **** IRIX 6.0.x **** IRIX operating system versions 6.0.x were limited release versions. For the IRIX operating system versions 6.0.x an upgrade to 6.1 or later is required first. When the upgrade is completed, then the security patches described in the following sections can be applied depending on the final version of the upgrade. **** IRIX 6.1 **** See the section "**** IRIX 5.3, 6.1 ****" above. **** IRIX 6.2 **** For the IRIX operating system version 6.2 an inst-able patch has been generated and made available via anonymous FTP and your service/support provider. The patch is number 2022 and will only install on IRIX 6.2. The SGI anonymous FTP site is sgigate.sgi.com (204.94.209.1) or its mirror, ftp.sgi.com. Patch 2022 can be found in the following directories on the FTP server: ~ftp/Security or ~ftp/Patches/6.2 ##### Checksums #### The actual patch will be a tar file containing the following files: Filename: README.patch.2022 Algorithm #1 (sum -r): 22870 8 README.patch.2022 Algorithm #2 (sum): 25749 8 README.patch.2022 MD5 checksum: 77AA72580D6AC26FBE845E0DA19224D5 Filename: patchSG0002022 Algorithm #1 (sum -r): 18053 1 patchSG0002022 Algorithm #2 (sum): 37661 1 patchSG0002022 MD5 checksum: 45E0F0DB8C835C75C3DADB53CB31424C Filename: patchSG0002022.idb Algorithm #1 (sum -r): 10021 2 patchSG0002022.idb Algorithm #2 (sum): 57571 2 patchSG0002022.idb MD5 checksum: 1A8C6DD25A769B224C7238F2DBFDD478 Filename: patchSG0002022.print_sw Algorithm #1 (sum -r): 19709 22 patchSG0002022.print_sw Algorithm #2 (sum): 31923 22 patchSG0002022.print_sw MD5 checksum: 00EF09617BC1F4811E43FB86FE6F3DAD **** IRIX 6.3 (Early Access for O2) **** IRIX operating system version 6.3 (Early Access for O2) is a limited release version. An update to "IRIX 6.3 for O2 including R10000" is required for this security issue. This security issue has been addressed in the "IRIX 6.3 for O2 including R10000" distribution. **** IRIX 6.4 S2MP (Origin200, Origin2000, Onyx2) **** IRIX operating system version 6.4 S2MP (Origin200, Origin2000, Onyx2) is a limited release version. An update to "IRIX 6.4 for Origin, Onyx2, and Octane" is required for this security issue. This security issue has been addressed in the "IRIX 6.4 for Origin, Onyx2, and Octane" release. - - ----------------------------------------- - - --- SGI Security Information/Contacts --- - - ----------------------------------------- If there are questions about this document, email can be sent to cse-security-alert@csd.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/Secur/security.html. For issues with the patches on the FTP sites, email can be sent to cse-security-alert@csd.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/Secur/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/Secur/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 iQCVAwUBM3JJkrQ4cFApAP75AQFeDgP/SSfqVmHISNUV4oDMdZSqRuEKWuGOx72Q Pp8ib+AxHftlr5ZxesidBlw2HswrlpMO32MB5zho3PEqvi3OgKW51Jipqw+418X6 jQ9h/8PsVMeVie9LbrqFE/eDfS2CayhFWvh24/KWf3bx2B+kNodAJ3lFPCxGeb3b tzQYHUHw0xI= =zvVn - -----END PGP SIGNATURE----- [ End SGI Security 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: +1 510-422-8193 FAX: +1 510-423-8002 STU-III: +1 510-423-2604 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 510-422-8193 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://ciac.llnl.gov/ Anonymous FTP: ciac.llnl.gov (128.115.19.53) Modem access: +1 (510) 423-4753 (28.8K baud) +1 (510) 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. CIAC-NOTES for Notes, a collection of computer security articles; 3. SPI-ANNOUNCE for official news about Security Profile Inspector (SPI) software updates, new features, distribution and availability; 4. 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. 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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) H-47A: AOL4FREE.COM Trojan Horse Program Destroys Hard Drives H-48: Internet Information Server Vulnerability H-49: NLS Buffer Overflow Vulnerability H-22a: talkd Buffer Overrun Vulnerability H-29a: HP-UX sendmail Patches Vulnerability H-50: HP-UX SYN Flood and libXt patches H-51: Vulnerability in libXt H-52: IRIX csetup Program Vulnerability H-53: Vulnerability in webdist.cgi H-54: Vulnerability in xlock -----BEGIN PGP SIGNATURE----- Version: 4.0 Business Edition iQCVAwUBM3owd7nzJzdsy3QZAQEM6QP/Qz1jmlOKw/u+EQzNkU1W+rNaz7rc44kT sP7eJWnWPV3k5rZb+TTvqUOZKLLBryQY5GDZyursBUZJPBfVstOiOlNdIt3NeSVV cFuJaWPneAYhCjMbMk1jHZTv0xu6XYinArIpZOPi/5+xSYZSyVJlYY/jTvzVf1tX BaouwGZB0aY= =WosA -----END PGP SIGNATURE-----