-----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 to CERT-NL information contained in this advisory are therefore outdated.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 << =============================================================================== =============================================================================== Security Advisory CERT-NL =============================================================================== Author/Source : CERT-NL Index : S-92-08 Distribution : SURFnet Constituency Page : 1 Classification: External Version: final Subject : "IRIX" lp Vulnerability Date : 10-apr-92 =============================================================================== CERT-NL (SURFnet Computer Emergency Response Team) has received information concerning a security problem in SG's IRIX lp. CERT-NL wishes to thank CERT/CC for bringing this to our attention. - --------------------------------------------------------------------------- CA-92:08 CERT Advisory April 10, 1992 Silicon Graphics Computer Systems "IRIX" lp Vulnerability - --------------------------------------------------------------------------- The Computer Emergency Response Team/Coordination Center (CERT/CC) has received information concerning a method of unauthorized root access in the lp software in Silicon Graphics Computer Systems (SGI) IRIX operating systems. This vulnerability is present in all current versions of IRIX. Silicon Graphics Computer Systems and the CERT/CC strongly recommend that sites take immediate action to eliminate this vulnerability from their systems. This vulnerability will be fixed in IRIX 4.0.5 and is NOT present in any version of the Trusted IRIX/B product. - --------------------------------------------------------------------------- I. Description When IRIX pre-4.0.5 systems are installed or updated using either the basic system software ("eoe1.sw.unix") or the system manager software ("eoe2.sw.vadmin") media, a vulnerability is introduced in the lp software. II. Impact Any user logged into the system can gain root access. III. Solution As root, execute the following commands: # cd /usr/lib # chmod a-s,go-w lpshut lpmove accept reject lpadmin # chmod go-ws lpsched vadmin/serial_ports vadmin/users vadmin/disks # cd /usr/bin # chmod a-s,go-w disable enable # chmod go-ws cancel lp lpstat If the eoe2.sw.vadmin software is not installed, you may ignore any warning messages from chmod such as: "chmod: WARNING: can't access vadmin/serial_ports" If system software should ever be reinstalled from pre-4.0.5 media or restored from a backup tape created before the patch was applied, repeat the above procedure before enabling logins by normal users. - --------------------------------------------------------------------------- The CERT/CC would like to thank Silicon Graphics Computer Systems for bringing this security vulnerability to our attention and for their quick response to this problem. - --------------------------------------------------------------------------- If you believe that your system has been compromised, contact CERT/CC or your representative in FIRST (Forum of Incident Response and Security Teams). Internet E-mail: cert@cert.sei.cmu.edu Telephone: 412-268-7090 (24-hour hotline) CERT/CC personnel answer 7:30 a.m.-6:00 p.m. EST(GMT-5)/EDT(GMT-4), on call for emergencies during other hours. Computer Emergency Response Team/Coordination Center (CERT/CC) Software Engineering Institute Carnegie Mellon University Pittsburgh, PA 15213-3890 Past advisories, information about FIRST representatives, and other information related to computer security are available for anonymous ftp from cert.sei.cmu.edu (192.88.209.5). Please note: cert.sei.cmu.edu is soon to become cert.org. ============================================================================== 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/AwUBOL6V9jSYjBqwfc9jEQIPNwCgqI4ZasYicuu22cP311BykiTA3EwAoK6v Bm1xXnO+A6tCR1vs7N9LxMVA =HdGP -----END PGP SIGNATURE-----