OpenServer 5.0.6 OpenServer 5.0.7 : scosessoin local privilege elevation

please_reply_to_security_at_sco.com
Date: 01/26/05

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    To: security-announce@list.sco.com, bugtraq@securityfocus.com, full-disclosure@lists.netsys.com
    Date: Tue, 25 Jan 2005 15:30:00 -0800
    
    

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    ______________________________________________________________________________

                            SCO Security Advisory

    Subject: OpenServer 5.0.6 OpenServer 5.0.7 : scosessoin local privilege elevation
    Advisory number: SCOSA-2005.5
    Issue date: 2005 January 25
    Cross reference: sr886719 fz528461 erg712476 CAN-2003-1021
    ______________________________________________________________________________

    1. Problem Description

            A problem has been identified in the scosession program
            when handling strings on the commandline. Because of this,
            a local attacker may be able to gain elevated privileges.

            The Common Vulnerabilities and Exposures project (cve.mitre.org)
            has assigned the name CAN-2003-1021 to this issue.

    2. Vulnerable Supported Versions

            System Binaries
            ----------------------------------------------------------------------
            OpenServer 5.0.6 /usr/bin/X11/scosession
            OpenServer 5.0.7 /usr/bin/X11/scosession

    3. Solution

            The proper solution is to install the latest packages.

    4. OpenServer 5.0.6

            4.1 First install oss646b or later

            4.2 Location of oss646c

            ftp://ftp.sco.com/pub/openserver5/oss646c/

            4.3 Verification of oss646c

            MD5 (VOL.000.000) = f19b6c6949f615316bfb075d249989e8
            MD5 (VOL.000.001) = 341ff8553aecd2c7b0c2beaf83030d0f
            MD5 (VOL.000.002) = 6e46708ad8029e12280d4f9ac60ab814
            MD5 (VOL.000.003) = 2868b64a6a6db742adb3b485be645d7e
            MD5 (VOL.000.004) = 1696fe1db9bb063827ee5e76e58dff84
            MD5 (VOL.000.005) = f39da342f8af72fcaccdf478dca04109
            MD5 (VOL.000.006) = 2b31611c8af7d2e7910d6e8e3cf701a6
            MD5 (VOL.000.007) = d0175c0f4e3ed29435b1eab95609f8f4
            MD5 (VOL.000.008) = aa9e8a525c341fed077f981b1dacb486
            MD5 (VOL.000.009) = 8e023af67b57507824406bdda322079a
            MD5 (VOL.000.010) = 2b46e8adba8ae0b64109f2069da978a2

            4.4 Location of Fixed Binaries

            ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2005.5

            4.5 Verification

            MD5 (VOL.000.000) = 953b64f2a068cd188717ebf3c87e9aed

            md5 is available for download from
                    ftp://ftp.sco.com/pub/security/tools

            4.6 Installing Fixed Binaries

            Upgrade the affected binaries with the following sequence:

            1) Download the VOL* files to a directory

            2) Run the custom command, specify an install from media
            images, and specify the directory as the location of the
            images.

    5. OpenServer 5.0.7

            5.1 Location of Fixed Binaries

            ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2005.5

            The fixes are also available in SCO OpenServer Release 5.0.7
            Maintenance Pack 3 or later. See
            http://www.sco.com/support/update/download/osr507list.html.

            5.2 Verification

            MD5 (VOL.000.000) = 953b64f2a068cd188717ebf3c87e9aed

            md5 is available for download from
                    ftp://ftp.sco.com/pub/security/tools

            5.3 Installing Fixed Binaries

            Upgrade the affected binaries with the following sequence:

            1) Download the VOL* files to a directory

            2) Run the custom command, specify an install from media
            images, and specify the directory as the location of the
            images.

    6. References

            Specific references for this advisory:
                    http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-1021

            SCO security resources:
                    http://www.sco.com/support/security/index.html

            SCO security advisories via email
                    http://www.sco.com/support/forums/security.html

            This security fix closes SCO incidents sr886719 fz528461
            erg712476.

    7. Disclaimer

            SCO is not responsible for the misuse of any of the information
            we provide on this website and/or through our security
            advisories. Our advisories are a service to our customers
            intended to promote secure installation and use of SCO
            products.

    8. Acknowledgments

            SCO would like to thank Joel Soderberg and Christer Oberg
            of Deprotect which describes itself as "a Swedish based
            security company divided into four divisions; Managed
            Security Services, Security Services, Products and Development
            and our Security Academy."

    ______________________________________________________________________________

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