-----BEGIN PGP SIGNED MESSAGE----- __________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN SCO /usr/bin/X11/scoterm Vulnerability November 26, 1997 19:00 GMT Number I-016 ______________________________________________________________________________ PROBLEM: The Santa Cruz Operation has discovered a security vulnerability in the implementation of scoterm. PLATFORM: SCO Open Desktop/Open Server 3.0 SCO OpenServer 5.0 DAMAGE: Any user with an account on the system may be able to execute arbitrary commands with root privileges. SOLUTION: Apply patch as listed below ______________________________________________________________________________ VULNERABILITY Due to the risk that the exploit method may be revealed, the ASSESSMENT: patch should be applied as soon as possible. ______________________________________________________________________________ [ Start CERT Advisory ] ============================================================================= CERT* Vendor-Initiated Bulletin VB-97.14 November 25, 1997 Topic: Vulnerability in /usr/bin/X11/scoterm Source: The Santa Cruz Operation, Inc. (SCO) To aid in the wide distribution of essential security information, the CERT Coordination Center is forwarding the following information from The Santa Cruz Operation, Inc. (SCO). SCO urges you to act on this information as soon as possible. SCO contact information is included in the forwarded text below; please contact them if you have any questions or need further information. =======================FORWARDED TEXT STARTS HERE============================ SCO Security Bulletin 97:02 November 20, 1997 Vulnerability in /usr/bin/X11/scoterm - ----------------------------------------------------------------------------- The Santa Cruz Operation has discovered the following problem present in our software: I. Description A security vulnerability in the implementation of scoterm has been identified which could allow unprivileged users to gain unauthorized root access to the system. II. Impact Any user with an account on the system may be able to execute arbitrary commands with root privileges. A program which exploits this vulnerability is in existence, although we do not believe it is currently being distributed. There is a risk that the exploit method may be revealed, so the patch should be applied as soon as possible. III. Releases This problem exists on the following releases of SCO operating systems: - SCO Open Desktop/Open Server 3.0 - SCO OpenServer 5.0 The following releases are not vulnerable, and no patch is necessary: - SCO CMW+ 3.0 - SCO UnixWare 2.1 IV. Solution SCO is providing interim patches to address this issue in the form of a System Security Enhancement (SSE) package. The SSE package includes patches for all operating systems listed above. The SSE package is available for Internet download via anonymous ftp, and from the SCOFORUM on Compuserve. If you are for some reason unable to access or install the patches, you should temporarily disable scoterm by running the following command as the root user: # chmod 0 /usr/bin/X11/scoterm You can download the SSE package as follows: Anonymous ftp (World Wide Web URL) - --------------- ftp://ftp.sco.COM/SSE/sse009.ltr (cover letter, uncompressed) ftp://ftp.sco.COM/SSE/sse009.tar.Z (new binaries, compressed tar file) Compuserve - ------------ GO SCOFORUM, and search the file library for these filenames: SSE009.LTR (cover letter, compressed) SSE009.TAZ (new binaries, compressed tar file) Checksums - ----------- sum -r 59495 4 sse009.ltr 15226 602 sse009.tar.Z Updates: This bulletin is available for anonymous ftp download from ftp://ftp.sco.COM/SSE/security_bulletins/SB.97:02a, and will be updated as new information becomes available. Further Information: 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 Time (PST/PDT) ----------- 1-800-347-4381 (voice) 1-408-427-5443 (fax) Pacific Rim, Asia, and Latin American customers: 6am-5pm Pacific ------------------------------------------------ Time (PST/PDT) 1-408-425-4726 (voice) 1-408-427-5443 (fax) Europe, Middle East, Africa: 9am-5:30pm UK Time (GMT/BST) ---------------------------- +44 (0)1923 816344 (voice) +44 (0)1923 817781 (fax) ========================FORWARDED TEXT ENDS HERE============================= [ End CERT Advisory ] ______________________________________________________________________________ CIAC wishes to acknowledge the contributions of CERT & The Santa Cruz Operation, 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 (198.128.39.53) 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. SPI-ANNOUNCE for official news about Security Profile Inspector (SPI) software updates, new features, distribution and availability; 3. 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. To subscribe (add yourself) to one of our mailing lists, send the following request as the E-mail message body, substituting ciac-bulletin, spi-announce OR spi-notes for list-name: E-mail to ciac-listproc@llnl.gov or majordomo@tholia.llnl.gov: subscribe list-name e.g., subscribe ciac-bulletin You will receive an acknowledgment email immediately with a confirmation that you will need to mail back to the addresses above, as per the instructions in the email. This is a partial protection to make sure you are really the one who asked to be signed up for the list in question. If you include the word 'help' in the body of an email to the above address, it will also send back an information file on how to subscribe/unsubscribe, get past issues of CIAC bulletins via email, etc. 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 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) I-006: IBM AIX "xdat" Buffer Overflow Vulnerability I-007: SunOS Solaris Vulnerabilies (nis_cachemgr, ftpd/rlogind, sysdef) I-008: Open Group OSF/DCE Denial-of-Service Vulnerability i-009: IBM AIX libDtSvc.a Buffer Overflow Vulnerability I-010: HP-UX CDE Vulnerability I-011: IBM AIX portmir command Vulnerability I-012: IBM AIX ftp client Vulnerability I-013: Count.cgi Buffer Overrun Vulnerabiliity I-014: Vulnerability in GlimpseHTTP and WebGlimpse cgi-bin Packages I-015: SGI IRIX Vulnerabilities (syserr and permissions programs) -----BEGIN PGP SIGNATURE----- Version: 4.0 Business Edition iQCVAwUBNHyUWrnzJzdsy3QZAQG7+QQA94tnrDzqamBGHjTHsmqGWaDRILOBdyzh wNsT5sA3quStf4hpRE7aFFmgckhfUpopH2mZymDij1XxR84y2UoVvZ9Cxyp8mefj HdWBOHGwTUH53+VAmZxcUb/T9rqzKX4cTk3TqAJNypPP6j47qNFZKHzGJYoHCbxh XnJu4qbp2h8= =uNiF -----END PGP SIGNATURE-----