MCI Telecommunications internetMCI Security Group Report Name: iMCI MIIGS Security Alert Report Number: iMCISE:IMCICIAC:0919:01:P1R1 Report Date: 09/19/96 Report Format: Formal Report Classification: MCI Informational Report Reference: http://www.security.mci.net Report Distribution: iMCI Security, MCI Internal Internet Gateway Security (MIIGS), MCI Emergency Alert LiSt (MEALS) (names on file) ------------------------------------------------------------------------------- -----BEGIN PGP SIGNED MESSAGE----- __________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN SCO Unix Vulnerability September 18, 1996 14:00 GMT Number G-44 ______________________________________________________________________________ PROBLEM: A problem in a particular system call may allow unauthorized access to a system. PLATFORM: Any system running SCO UnixWare release 2.0.x and 2.1.0. DAMAGE: By exploiting this vulnerability, a user can obtain root access. SOLUTION: Apply the patches and/or workarounds provided in the vendor bulletin below. ______________________________________________________________________________ VULNERABILITY These vulnerabilities are widely known. ASSESSMENT: ______________________________________________________________________________ [Begin SCO Bulletin] =========================================================================== SCO Security Bulletin 96:002 September 4, 1996 Patch for system call security issue - - --------------------------------------------------------------------------- The Santa Cruz Operation has discovered the following problem present in our software: I. Description A problem in a particular system call may allow unauthorized access to the system. The resulting access may lead to unauthorized root access to the system. II. Impact Any user with an account on the system may be able to gain unauthorized access to system or user files, which may then lead to unauthorized root access. III. Releases This problem exists on the following releases of SCO products: SCO(R) UnixWare(R) release 2.0.x and 2.1.0 IV. Solution SCO is providing Program Temporary Fix (PTF) 3063 to address the issue. This PTF is available for SCO UnixWare release 2.1.0. SCO intends to release a PTF for SCO UnixWare release 2.0.3 in the near future. A workaround for users of SCO UnixWare release 2.0.x or for those who are not yet able to install this PTF follows: As root, execute these commands on the system console: # /etc/conf/bin/idtune -f RSTCHOWN 1 # /etc/conf/bin/idbuild -B # init 6 This procedure sets a kernel parameter that prevents the problem from occuring, relinks the kernel, and reboots the system. You can download the PTF as follows: Anonymous ftp (World Wide Web URL) - - ------------- ftp://ftp.sco.COM/UW21/ptf3063.Z (patch image, compressed) ftp://ftp.sco.COM/UW21/ptf3063.txt (cover letter/installation notes) Compuserve - - ---------- PTF 3063 is also available in the UNIXWARE forum on Compuserve. SCO Online Support (SOS) BBS - - ---------------------------- PTF 3063 can also be downloaded interactively via X, Y, or Z MODEM or Kermit, using the SCO Online Support System (SOS). Follow the menus selections under "Toolchest" from the main SOS menu. The phone numbers available for interactive transfer from SOS are: 1-408-426-9495 (USA) +44 (0)1923 210 888 (United Kingdom) Checksums - - --------- MD5 - - --- MD5 (ptf3063.Z) = 1093420123c9bff603bd3c32a3867dcd MD5 (ptf3063.txt) = 0ffa24e5e0d9a8caf8f4076149d782c3 sum -r (on UnixWare) - - ------ 48571 391 ptf3063.Z 20546 3 ptf3063.txt This bulletin is available for anonymous ftp download from ftp://ftp.sco.COM/SSE/security_bulletins/SB.96:02a, and will be updated as new information becomes available. If you have further questions, contact your support provider. If you need to contact SCO, please send electronic mail to support@sco.COM, or contact SCO as follows. USA/Canada: 6am-5pm Pacific Daylight Time (PDT) ----------- 1-800-347-4381 (voice) 1-408-427-5443 (fax) Pacific Rim, Asia, and Latin American customers: 6am-5pm Pacific ------------------------------------------------ Daylight Time (PDT) 1-408-425-4726 (voice) 1-408-427-5443 (fax) Europe, Middle East, Africa: 9am-5:30pm Greenwich Mean Time (GMT) ---------------------------- +44 (0)1923 816344 (voice) +44 (0)1923 817781 (fax) [End SCO Bulletin] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Santa Cruz Operation and CERT 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 ListProcessor, 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, CIAC-NOTES, SPI-ANNOUNCE or SPI-NOTES for list-name and valid information for LastName FirstName and PhoneNumber when sending E-mail to ciac-listproc@llnl.gov: subscribe list-name LastName, FirstName PhoneNumber e.g., subscribe ciac-notes OHara, Scarlett W. 404-555-1212 x36 You will receive an acknowledgment containing address, initial PIN, and information on how to change either of them, cancel your subscription, or get help. 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 by sending email to docserver@first.org with an empty subject line and a message body containing the line: send first-contacts. 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) G-34: HP-UX Vulnerabilities (netttune, SAM remote admin) G-35: SUN Microsystems Solaris vold Vulnerability G-36: HP-UX Vulnerabilities in elm and rdist Programs G-37: Vulnerability in Adobe FrameMaker (fm_fls) G-38: Linux Vulnerabilities in mount and umount Programs G-39: Vulnerability in expreserve G-40: SGI admin and user Program Vulnerabilities G-41: Vulnerability in BASH Program G-42: Vulnerability in WorkMan Program G-43: Vulnerabilities in Sendmail RECENT CIAC NOTES ISSUED (Previous Notes available from CIAC) Notes 07 - 3/29/95 A comprehensive review of SATAN Notes 08 - 4/4/95 A Courtney update Notes 09 - 4/24/95 More on the "Good Times" virus urban legend Notes 10 - 6/16/95 PKZ300B Trojan, Logdaemon/FreeBSD, vulnerability in S/Key, EBOLA Virus Hoax, and Caibua Virus Notes 11 - 7/31/95 Virus Update, Hats Off to Administrators, America On-Line Virus Scare, SPI 3.2.2 Released, The Die_Hard Virus Notes 12 - 9/12/95 Securely configuring Public Telnet Services, X Windows, beta release of Merlin, Microsoft Word Macro Viruses, Allegations of Inappropriate Data Collection in Win95 Notes 96-01 - 3/18/96 Java and JavaScript Vulnerabilities, FIRST Conference Announcement, Security and Web Search Engines, Microsoft Word Macro Virus Update -----BEGIN PGP SIGNATURE----- Version: 4.0 Business Edition iQCVAgUBMkF6LbnzJzdsy3QZAQF8mwP/U49kg8UNkiz/Bgia30OQb8VQQJHYxIec iLfD21zTLDAoAMG/C5YSj0jtiMhlkpGfGguuiHipLUj4nkvgPUr6vSRFwNi8R67P Bthqicq0TE912v84nOnvm/GOY9UTiYa9GGdH7RcT3e9wUz4bJYK4aVL8iQEJmAQn qLaUAf+rSkU= =2QTl -----END PGP SIGNATURE----- ===============================================================