[Full-Disclosure] Security Update: [CSSA-2003-SCO.4] UnixWare 7.1.1 Open UNIX 8.0.0 UnixWare 7.1.3 : Lax permissions on /dev/X

From: security@caldera.com
Date: 03/06/03

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    To: bugtraq@securityfocus.com, announce@lists.caldera.com, scoannmod@xenitec.on.ca, full-disclosure@lists.netsys.com
From: security@caldera.com
Date: Wed, 5 Mar 2003 15:37:38 -0800

    To: bugtraq@securityfocus.com announce@lists.caldera.com scoannmod@xenitec.on.ca full-disclosure@lists.netsys.com

    ______________________________________________________________________________

                            SCO Security Advisory

    Subject: UnixWare 7.1.1 Open UNIX 8.0.0 UnixWare 7.1.3 : Lax permissions on /dev/X
    Advisory number: CSSA-2003-SCO.4
    Issue date: 2003 March 04
    Cross reference:
    ______________________________________________________________________________

    1. Problem Description

            The /dev/X directory is world readable and writable, and
            the files in it are also world readable and writable.
            Denial-of-Service attacks are possible, as well as possible
            data hijacking. The X server sets these permissions when
            it starts up, so there is no workaround for this issue.

    2. Vulnerable Supported Versions

            System Binaries
            ----------------------------------------------------------------------
            UnixWare 7.1.1 Standard X Distribution
            Open UNIX 8.0.0 Standard X Distribution
            UnixWare 7.1.3 Standard X Distribution

    3. Solution

            The proper solution is to install the latest packages.

    4. UnixWare 7.1.1

            4.1 Location of Fixed Binaries

            ftp://ftp.sco.com/pub/updates/UnixWare/CSSA-2003-SCO.4

            4.2 Verification

            MD5 (basex.pkg.Z) = 510888d562f6c2249555fefdae94d49d
            MD5 (xserver.pkg.Z) = 74797f12d6e3e80300980854050f62ef

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

            4.3 Installing Fixed Binaries

            Upgrade the affected binaries with the following sequence:

            Download basex.pkg.Z to the /var/spool/pkg directory

            # uncompress /var/spool/pkg/basex.pkg.Z
            # pkgadd -d /var/spool/pkg/basex.pkg

            # uncompress /var/spool/pkg/xserver.pkg.Z
            # pkgadd -d /var/spool/pkg/xserver.pkg

    5. Open UNIX 8.0.0

            5.1 Location of Fixed Binaries

            ftp://ftp.sco.com/pub/updates/UnixWare/CSSA-2003-SCO.4

            5.2 Verification

            MD5 (basex.pkg.Z) = 510888d562f6c2249555fefdae94d49d
            MD5 (xserver.pkg.Z) = 74797f12d6e3e80300980854050f62ef

            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:

            Download basex.pkg.Z to the /var/spool/pkg directory

            # uncompress /var/spool/pkg/basex.pkg.Z
            # pkgadd -d /var/spool/pkg/basex.pkg

            # uncompress /var/spool/pkg/xserver.pkg.Z
            # pkgadd -d /var/spool/pkg/xserver.pkg

    6. UnixWare 7.1.3

            6.1 Location of Fixed Binaries

            ftp://ftp.sco.com/pub/updates/UnixWare/CSSA-2003-SCO.4

            6.2 Verification

            MD5 (basex.pkg.Z) = 510888d562f6c2249555fefdae94d49d
            MD5 (xserver.pkg.Z) = 74797f12d6e3e80300980854050f62ef

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

            6.3 Installing Fixed Binaries

            Upgrade the affected binaries with the following sequence:

            Download basex.pkg.Z to the /var/spool/pkg directory

            # uncompress /var/spool/pkg/basex.pkg.Z
            # pkgadd -d /var/spool/pkg/basex.pkg

            # uncompress /var/spool/pkg/xserver.pkg.Z
            # pkgadd -d /var/spool/pkg/xserver.pkg

    7. References

            Specific references for this advisory:

                    none

            SCO security resources:

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

            This security fix closes SCO incidents sr874992, sr874607,
            fz527440, erg712231.

    8. 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.

    ______________________________________________________________________________

    _______________________________________________
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    Charter: http://lists.netsys.com/full-disclosure-charter.html

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