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Category:   Application (Generic)  >   Dtsession Vendors:   Caldera/SCO
Caldera Open UNIX and UnixWare Dtsession Bug May Let Local Users Grab Elevated Privileges
SecurityTracker Alert ID:  1002913
SecurityTracker URL:  http://securitytracker.com/id/1002913
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Dec 6 2001
Impact:   User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   Caldera issued an advisory for Open UNIX and UnixWare, warning of a vulnerability in dtsession that could allow local users to obtain elevated privileges.

It is reported that, for UnixWare 7.1.x and Open Unix 8.0.0, xterms saved in previous desktop sessions can acquire elevated privileges they should not have in subsequent sessions.

It is also reported that, in UnixWare 7.1.x, xterms saved in previous desktop sessions do not honor the value of the LD_LIBRARY_PATH environment variable.

This reportedly affects the /usr/dt/bin/dtsession application.

Impact:   A local user may be able to obtain elevated privileges.
Solution:   The vendor has issued a fix for UnixWare 7 and Open UNIX 8:

ftp://stage.caldera.com/pub/security/openunix/CSSA-2001-SCO.37/

The verification checksum is:

eb52ca9bcb98ada422002594e6654ff0 erg711820.Z

Upgrade the affected binaries with the following commands:

# uncompress /tmp/erg711820.Z
# pkgadd -d /tmp/erg711820

Vendor URL:  stage.caldera.com/support/security (Links to External Site)
Cause:   Access control error, State error
Underlying OS:  UNIX (Open UNIX-SCO)
Underlying OS Comments:  UnixWare 7.1.x and Open Unix 8.0.0

Message History:   None.


 Source Message Contents

Subject:  Open UNIX, UnixWare 7: xterms in saved CDE sessions


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ftp://stage.caldera.com/pub/security/openunix/CSSA-2001-SCO.37/CSSA-2001-SCO.37.txt
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___________________________________________________________________________

	    Caldera International, Inc. Security Advisory

Subject:		Open UNIX, UnixWare 7: xterms in saved CDE sessions
Advisory number: 	CSSA-2001-SCO.37
Issue date: 		2001 December 5
Cross reference:
___________________________________________________________________________


1. Problem Description
	
	In UnixWare 7.1.x and Open Unix 8.0.0, xterms saved in previous
	desktop sessions can acquire privileges they should not have in
	subsequent sessions.

	In UnixWare 7.1.x, xterms saved in previous desktop sessions do
	not honor the value of the LD_LIBRARY_PATH environment variable.


2. Vulnerable Versions

	Operating System	Version		Affected Files
	------------------------------------------------------------------
	UnixWare 7		7.1.x		/usr/dt/bin/dtsession
	Open UNIX		8.0.0		/usr/dt/bin/dtsession


3. Workaround

	None.


4. UnixWare 7, Open UNIX 8

  4.1 Location of Fixed Binaries

	ftp://stage.caldera.com/pub/security/openunix/CSSA-2001-SCO.37/


  4.2 Verification

	md5 checksums:
	
	eb52ca9bcb98ada422002594e6654ff0	erg711820.Z


	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:

	# uncompress /tmp/erg711820.Z
	# pkgadd -d /tmp/erg711820


5. References

	This and other advisories are located at
		http://stage.caldera.com/support/security

	This advisory addresses Caldera Security internal incidents
	sr848309, fz51679, and erg711820.


6. Disclaimer

	Caldera International, Inc. is not responsible for the misuse
	of any of the information we provide on our website and/or
	through our security advisories. Our advisories are a service
	to our customers intended to promote secure installation and
	use of Caldera International products.

___________________________________________________________________________

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