COMMAND

	ftp client remote command injection with pipe symbols in filenames

SYSTEMS AFFECTED

		System				Binaries
		----------------------------------------------------------------------
		UnixWare 7.1.1 			/usr/bin/ftp
		Open UNIX 8.0.0 		/usr/bin/ftp
		UnixWare 7.1.3 			/usr/bin/ftp

PROBLEM

	In Caldera security announcement [CSSA-2003-SCO.3] :
	
	
	By using a filename with a | (pipe symbol) in it, shell commands can  be
	issued remotely on the machine of a user who is  retrieving  files  with
	the FTP client program, from a  compromised  or  malicious  ftp  server.
	This leads to a compromise of the client machine.

SOLUTION

	The proper solution is to install the latest packages.
	
	
	4. UnixWare 7.1.1
	
		4.1 Location of Fixed Binaries
	
		ftp://ftp.sco.com/pub/updates/UnixWare/CSSA-2003-SCO.3
	
	
		4.2 Verification
	
		MD5 (erg712227.pkg.Z) = 296bbcf1394f7010397b8d90f9a9978d
	
		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 erg712227.pkg.Z to the /var/spool/pkg directory
	
		# uncompress /var/spool/pkg/erg712227.pkg.Z
		# pkgadd -d /var/spool/pkg/erg712227.pkg
	
	
	5. Open UNIX 8.0.0
	
		5.1 Location of Fixed Binaries
	
		ftp://ftp.sco.com/pub/updates/UnixWare/CSSA-2003-SCO.3
	
	
		5.2 Verification
	
		MD5 (erg712227.pkg.Z) = 296bbcf1394f7010397b8d90f9a9978d
	
		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 erg712227.pkg.Z to the /var/spool/pkg directory
	
		# uncompress /var/spool/pkg/erg712227.pkg.Z
		# pkgadd -d /var/spool/pkg/erg712227.pkg
	
	
	6. UnixWare 7.1.3
	
		6.1 Location of Fixed Binaries
	
		ftp://ftp.sco.com/pub/updates/UnixWare/CSSA-2003-SCO.3
	
	
		6.2 Verification
	
		MD5 (erg712227.pkg.Z) = 296bbcf1394f7010397b8d90f9a9978d
	
		md5 is available for download from
			ftp://ftp.sco.com/pub/security/tools
	
	
		6.3 Installing Fixed Binaries
	
		Upgrade the affected binaries with the following sequence:
	
		Download erg712227.pkg.Z to the /var/spool/pkg directory
	
		# uncompress /var/spool/pkg/erg712227.pkg.Z
		# pkgadd -d /var/spool/pkg/erg712227.pkg
	
	
	7. References
	
		Specific references for this advisory:
	
			http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0041
	
		SCO security resources:
	
			http://www.sco.com/support/security/index.html
	
		This security fix closes SCO incidents sr874929, fz527425,
		erg712227.
	
	
	8. 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.
	
	
	9. Acknowledgements
	
		This vulnerability was first published in 1997 on Bugtraq,
		and was discovered again by The Hackademy Audit team in
		September 2002 during a source code audit.