To: bugtraqat_private announceat_private scoannmodat_private full-disclosureat_private ______________________________________________________________________________ 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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