-----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 to CERT-NL information contained in this advisory are therefore outdated.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 : Erik-Jan Bos (CERT-NL) Index : S-92-25 Distribution : SURFnet constituency Page : 1 Classification: External Version: Final Subject : ConvexOS & ConvexOS/Secure Vulnerabilities Date : 17-dec-92 =============================================================================== CERT-NL has received information from The CERT Coordination Center concerning several vulnerabilities in the following CONVEX Computer Corporation products: ConvexOS/Secure, CONVEX CXbatch, CONVEX Storage Manager (CSM), and ConvexOS EMACS. These vulnerabilities can affect ConvexOS versions V6.2 - V10.2 and ConvexOS/Secure versions V9.5 and V10.0 on all supported architectures. CONVEX is aware of the vulnerabilities, and fixes or workarounds are available. Three of the fixes are implemented as full Engineering Change Notice (ECN) patches and, as such, will be shipped with all new systems as well as being released as upgrades for the products CXbatch, CSM and ConvexOS/Secure. There is a workaround available for the ConvexOS EMACS vulnerability. CONVEX is currently incorporating the fixes to these vulnerabilities into future releases of each product. Future shipments of these products should not be vulnerable to these problems. If you have any questions about the affected products, please contact Convex Nederland at 030-888368 (ask for the Technical Department or in Dutch "de Technische Afdeling") or email Convex Nederland at "help@convex.nl". - ----------------------------------------------------------------------------- ConvexOS/Secure: passwd patch I. Description The "passwd" command in ConvexOS/Secure contains a security vulnerability in versions V9.5 and V10.0 of ConvexOS/Secure. This vulnerability has been fixed in ConvexOS/Secure V10.1. II. Impact Local users can gain unauthorized root access. III. Solution Obtain and install ConvexOS/Secure V10.0.2 - Part No. 710-007815-008. - ------------------------------------------------------------------------------ Convex CXbatch: qmgr patch I. Description The "qmgr" command in CONVEX CXbatch versions V1.0 - V2.1.3 contains a security vulnerability. This vulnerability is present in ConvexOS V6.2 - V10.2 on systems that have installed the optional CXbatch facility. II. Impact Local users can gain unauthorized root access. III. Solution A. As root, rename the existing version of /usr/convex/qmgr and modify the permission (from 6755 to 700) to prevent misuse. # /bin/mv /usr/convex/qmgr /usr/convex/qmgr.orig # /bin/chmod 700 /usr/convex/qmgr.orig B. Next, obtain and install CONVEX CXbatch V2.1.4 - Part No. 710-007830-011. - ------------------------------------------------------------------------------ Convex CSM: migmgr patch I. Description The "migmgr" command in CONVEX CSM contains a security vulnerability, in ConvexOS version V10.1 of systems that have installed the CSM facility. This vulnerability will be fixed in the next CSM release. II. Impact Local users can gain unauthorized root access. III. Solution A. As root, rename the existing version of /usr/csm/bin/migmgr and modify the permission (from 4755 to 700) to prevent misuse. # /bin/mv /usr/csm/bin/migmgr /usr/csm/bin/migmgr.orig # /bin/chmod 700 /usr/csm/bin/migmgr.orig B. Next, obtain and install CONVEX CSM V1.0.1 - Part No. 710-011315-003 - ------------------------------------------------------------------------------ ConvexOS: EMACS editor workaround I. Description The EMACS Editor in ConvexOS contains a security vulnerability, in ConvexOS versions V9.0 - V10.2. II. Impact Local users can gain unauthorized access to /dev/kmem. III. Solution As root, remove the setgid bit from /usr/convex/emacs. # /bin/chmod 755 /usr/convex/emacs - ------------------------------------------------------------------------------ The CERT Coordination Center wishes to thank the CONVEX Computer Corporation for their response to these problems. We would also like to thank Bob Vickers from the University of London Computer Centre, London, England, for reporting the CXbatch problem to us. - ------------------------------------------------------------------------------ CERT-NL wishes to thank The CERT Coordination Center for making this information available. Furthermore, CERT-NL wishes to thank Convex Nederland for supplying local contact information. ============================================================================== 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/AwUBOL6V/zSYjBqwfc9jEQK8fwCePRKE0ypJ5tM5846NHObwgFIb7yIAn2zJ t8ePYSsU8w5jt2Df363Cq6/Y =yKrx -----END PGP SIGNATURE-----