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			SCO Security Advisory

Subject:		UnixWare 7.1.3 UnixWare 7.1.4 : OpenSSH Multiple Vulnerabilities
Advisory number:	SCOSA-2005.53
Issue date:		2005 December 12
Cross reference:	erg712933 fz532978 sr894960
			CVE-2005-2797 CVE-2005-2798
______________________________________________________________________________


1. Problem Description

	Two security issues have been reported in OpenSSH, which can be
	exploited by malicious users to gain escalated privileges or
	bypass certain security restrictions.
	
	An error in handling dynamic port forwardings when no listen
	address is specified, can cause "GatewayPorts" to be incorrectly
	activated.
	
	The Common Vulnerabilities and Exposures project (cve.mitre.org)
	has assigned the name CVE-2005-2797 to this issue.
	
	An error in handling GSSAPI credential delegation can allow a
	user, who did not login using GSSAPI authentication, to be
	delegated with GSSAPI credentials.
	
	Successful exploitation requires that
	"GSSAPIDelegateCredentials" is enabled.
	
	The Common Vulnerabilities and Exposures project (cve.mitre.org)
	has assigned the name CVE-2005-2798 to this issue.


2. Vulnerable Supported Versions

	System				Binaries
	----------------------------------------------------------------------
	UnixWare 7.1.3 			OpenSSH distribution
	UnixWare 7.1.4 			OpenSSH distribution


3. Solution

	The proper solution is to install the latest packages.


4. UnixWare 7.1.3

	4.1 Location of Fixed Binaries

	ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.53


	4.2 Verification

	MD5 (openssh-4.2p1.713.image) = 8ca915ee39d4eda9b899c3289e1a4141

	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 openssh-4.2p1.713.image to the /var/spool/pkg directory.

	# pkgadd -d /var/spool/pkg/openssh-4.2p1.713.image

	Please note that UnixWare 7.1.3 Maintenance Pack 5 is required
	to be installed on the system for OpenSSH to work correctly.


5. UnixWare 7.1.4

	5.1 Location of Fixed Binaries

	ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.53


	5.2 Verification

	MD5 (openssh-4.2p1.714.image) = b558b5eb19edab7419d5729d51a46b95

	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 openssh-4.2p1.714.image to the /var/spool/pkg directory.

	# pkgadd -d /var/spool/pkg/openssh-4.2p1.714.image

	Please note that UnixWare 7.1.4 Maintenance Pack 2 is required
	to be installed on the system for OpenSSH to work correctly.


6. References

	Specific references for this advisory:
		http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2797
		http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2798
		http://secunia.com/advisories/16686/
		http://www.mindrot.org/pipermail/openssh-unix-announce/2005-September/000083.html

	SCO security resources:
		http://www.sco.com/support/security/index.html

	SCO security advisories via email
		http://www.sco.com/support/forums/security.html

	This security fix closes SCO incidents erg712933 fz532978
	sr894960.


7. 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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