To: bugtraqat_private announceat_private scoannmodat_private ______________________________________________________________________________ Caldera International, Inc. Security Advisory Subject: UnixWare 7.1.1 Open UNIX 8.0.0 : rpc.ttdbserverd file creation and deletion vulnerabilities Advisory number: CSSA-2002-SCO.28 Issue date: 2002 July 11 Cross reference: ______________________________________________________________________________ 1. Problem Description Several security bugs were discovered in the rpc.ttdbserverd program that allow an attacker to overwrite memory in the program as well as force the program to create and delete arbitrary files on the system. Some of these vulnerabilities are remotely exploitable. 2. Vulnerable Supported Versions System Binaries ---------------------------------------------------------------------- UnixWare 7.1.1 /usr/dt/bin/rpc.ttdbserverd Open UNIX 8.0.0 /usr/dt/bin/rpc.ttdbserverd 3. Solution The proper solution is to install the latest packages. 4. UnixWare 7.1.1 4.1 Location of Fixed Binaries ftp://ftp.caldera.com/pub/updates/OpenUNIX/CSSA-2002-SCO.28 4.2 Verification MD5 (erg712073.pkg.Z) = 9b7f2f606d658ed51d590737daf9e117 md5 is available for download from ftp://ftp.caldera.com/pub/security/tools 4.3 Installing Fixed Binaries Upgrade the affected binaries with the following commands: Download erg712073.pkg.Z to the /var/spool/pkg directory # uncompress /var/spool/pkg/erg712073.pkg.Z # pkgadd -d /var/spool/pkg/erg712073.pkg 5. Open UNIX 8.0.0 5.1 Location of Fixed Binaries ftp://ftp.caldera.com/pub/updates/OpenUNIX/CSSA-2002-SCO.28 5.2 Verification MD5 (erg712073.pkg.Z) = 9b7f2f606d658ed51d590737daf9e117 md5 is available for download from ftp://ftp.caldera.com/pub/security/tools 5.3 Installing Fixed Binaries Upgrade the affected binaries with the following commands: Download erg712073.pkg.Z to the /var/spool/pkg directory # uncompress /var/spool/pkg/erg712073.pkg.Z # pkgadd -d /var/spool/pkg/erg712073.pkg 6. References Specific references for this advisory: CORE ST advisory CORE-20020528 http://www.cert.org/advisories/CA-2002-20.html Caldera security resources: http://www.caldera.com/support/security/index.html This security fix closes Caldera incidents sr865685, fz521202, erg712073. 7. Disclaimer Caldera International, Inc. 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 Caldera products. 8. Acknowledgements The vulnerabilities were discovered and researched by Ricardo Quesada of the CORE IMPACT team at CORE Security Technologies. ______________________________________________________________________________
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