-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =============================================================================== >> CERT-NL, 01-Mar-2000 << >> All CERT-NL information has been moved to http://cert.surfnet.nl. Links << >> to CERT-NL information contained in this advisory are therefore outdated. << >> << >> CERT-NL also has stopped the CERT-CC-Mirror service. Due to this the << >> links to the CERT-CC mirror are obsolete. Visit the CERT-CC site for the << >> complete CERT-CC advisory texts: http://www.cert.org << =============================================================================== Content-Type: text/plain; charset=us-ascii =============================================================================== Security Advisory CERT-NL =============================================================================== Author/Source : Peter Jurg Index : S-97-33 Distribution : World Page : 1 Classification: External Version: 1 Subject : IRIX netprint Program Security Issues Date : 09-mei-97 =============================================================================== By courtesy of Silicon Graphics we received information on a vulnerability in the IRIX netprint Program. CERT-NL recommends sites apply the steps outlines in Section 'Solution'. ============================================================================== 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. ______________________________________________________________________________ - - ------------------- - - --- Description --- - - ------------------- 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. ============================================================================== CERT-NL is the Computer Emergency Response Team for SURFnet customers. SURFnet is the Dutch network for educational, research and related institutes. CERT-NL is a member of the Forum of Incident Response and Security Teams (FIRST). All CERT-NL material is available under: http://cert.surfnet.nl/ In case of computer or network security problems please contact your local CERT/security-team or CERT-NL (if your institute is NOT a SURFnet customer please address the appropriate (local) CERT/security-team). CERT-NL is one/two hour(s) ahead of UTC (GMT) in winter/summer, i.e. UTC+0100 in winter and UTC+0200 in summer (DST). Email: cert-nl@surfnet.nl ATTENDED REGULARLY ALL DAYS Phone: +31 302 305 305 BUSINESS HOURS ONLY Fax: +31 302 305 329 BUSINESS HOURS ONLY Snailmail: SURFnet bv Attn. CERT-NL P.O. Box 19035 NL - 3501 DA UTRECHT The Netherlands NOODGEVALLEN: 06 22 92 35 64 ALTIJD BEREIKBAAR EMERGENCIES : +31 6 22 92 35 64 ATTENDED AT ALL TIMES CERT-NL'S EMERGENCY PHONENUMBER IS ONLY TO BE USED IN CASE OF EMERGENCIES: THE SURFNET HELPDESK OPERATING THE EMERGENCY NUMBER HAS A *FIXED* PROCEDURE FOR DEALING WITH YOUR ALERT AND WILL IN REGULAR CASES RELAY IT TO CERT-NL IN AN APPROPRIATE MANNER. CERT-NL WILL THEN CONTACT YOU. =============================================================================== -----BEGIN PGP SIGNATURE----- Version: PGP 6.5.1i iQA/AwUBOL6IWDSYjBqwfc9jEQK8XACgnsD3sqQncNW/zmioMoMYzQ8MXhsAoP45 mlIstEjpPF57bMtR1xQehQ6h =nu2k -----END PGP SIGNATURE-----