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		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:
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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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