______________________________________________________________________________

		Caldera International, Inc.  Security Advisory

Subject:		Open UNIX 8.0.0 UnixWare 7.1.1 : CDE /var/dt and subdirectories are writable by world
Advisory number: 	CSSA-2002-SCO.18
Issue date: 		2002 May 08
Cross reference:
______________________________________________________________________________


1. Problem Description

	 The dt/config/Xsession.d/0030.dttmpdir script was creating
	 the following dt directories with 0777 perms:

	 	/var/dt/
		/var/dt/appconfig
		/var/dt/appconfig/appmanager
		/var/dt/tmp

	 In addition, libDtLogin.so was checking the permissions of
	 /var/dt. If found to be other than 0777, it was changing them
	 back to 0777.

	 This update fixes the above problems, and also changes the
	 permissions of the offending directories on the system to
	 close the vulnerability.


2. Vulnerable Supported Versions

	System				Binaries
	----------------------------------------------------------------------
	Open UNIX 8.0.0			/usr/dt/config/Xsession.d/0030.dttmpdir
					/usr/dt/lib/libDtLogin.so.1

	UnixWare 7.1.1			/usr/dt/config/Xsession.d/0030.dttmpdir
					/usr/dt/lib/libDtLogin.so.1

3. Solution

	The proper solution is to install the latest packages.


4. Open UNIX 8.0.0

	4.1 Location of Fixed Binaries

	ftp://stage.caldera.com/pub/security/openunix/CSSA-2002-SCO.18


	4.2 Verification

	MD5 (erg711939.pkg.Z) = 513c98dedb5d2cff437e0e330e96d94e

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


	4.3 Installing Fixed Binaries

	Upgrade the affected binaries with the following commands:

	Download erg711939.pkg.Z to the /var/spool/pkg directory

	# uncompress /var/spool/pkg/erg711939.pkg.Z
	# pkgadd -d /var/spool/pkg/erg711939.pkg


5. UnixWare 7.1.1

	5.1 Location of Fixed Binaries

	ftp://stage.caldera.com/pub/security/openunix/CSSA-2002-SCO.18


	5.2 Verification

	MD5 (erg711939.pkg.Z) = 513c98dedb5d2cff437e0e330e96d94e

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


	5.3 Installing Fixed Binaries

	Upgrade the affected binaries with the following commands:

	Download erg711939.pkg.Z to the /var/spool/pkg directory

	# uncompress /var/spool/pkg/erg711939.pkg.Z
	# pkgadd -d /var/spool/pkg/erg711939.pkg


6. References

	Specific references for this advisory:
		none

	Caldera UNIX security resources:
		http://stage.caldera.com/support/security/

	Caldera OpenLinux security resources:
		http://www.caldera.com/support/security/index.html

	This security fix closes Caldera incidents sr858543, fz519804
	and erg711939.


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

	Caldera wishes to thank jGgM (jggm@mail.com) for discovering
	and researching this vulnerability.

______________________________________________________________________________