CERT Vendor-Initiated Bulletin VB-97.14 - scoterm

From: Aleph One (aleph1at_private)
Date: Tue Nov 25 1997 - 15:28:09 PST

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    If you have a SCO Desktop/OpenServer 3.0 or OpenServer 5.0 box and are
    willing to test an exploit please contact me.
    
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    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 supportat_private, 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=============================
    
    If you believe that your system has been compromised, contact the CERT
    Coordination Center or your representative in the Forum of Incident Response
    and Security Teams (FIRST). See http://www.first.org/team-info/.
    
    We strongly urge you to encrypt any sensitive information you send by email.
    The CERT Coordination Center can support a shared DES key and PGP. Contact
    the CERT staff for more information.
    
    Location of CERT PGP key
             ftp://ftp.cert.org/pub/CERT_PGP.key
    
    
    CERT Contact Information
    - -------------------------
    Email    certat_private
    
    Phone    +1 412-268-7090 (24-hour hotline)
                    CERT personnel answer 8:30-5:00 p.m. EST
                    (GMT-5)/EDT(GMT-4), and are on call for
                    emergencies during other hours.
    
    Fax      +1 412-268-6989
    
    Postal address
            CERT Coordination Center
            Software Engineering Institute
            Carnegie Mellon University
            Pittsburgh PA 15213-3890
            USA
    
    CERT publications, information about FIRST representatives, and other
    security-related information are available from
            http://www.cert.org/
            ftp://ftp.cert.org/pub/
    
    CERT advisories and bulletins are also posted on the USENET newsgroup
            comp.security.announce
    
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    In the subject line, type
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    * Registered U.S. Patent and Trademark Office.
    
    The CERT Coordination Center is part of the Software Engineering
    Institute (SEI). The SEI is sponsored by the U. S. Department of Defense.
    
    
    This file: ftp://ftp.cert.org/pub/cert_bulletins/VB-97.14.scoterm
    
    
    
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