From security@sco.com Thu Nov 17 12:39:34 2005
From: security@sco.com
To: security-announce@list.sco.com
Date: Thu, 17 Nov 2005 12:31:09 -0500 (EST)
Subject: [Full-disclosure] SCOSA-2005.50 OpenServer 6.0.0 : Telnet Environment Leakage

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 			SCO Security Advisory

Subject:		OpenServer 6.0.0 : Telnet Environment Leakage
Advisory number:	SCOSA-2005.50
Issue date:		2005 November 17
Cross reference:	sr895063 fz533032 erg712953
 			CVE-2005-0488
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1. Problem Description

 	Certain BSD-based telnet clients allow remote malicious telnet
 	servers to read sensitive environment variables via the
 	NEW-ENVIRON option with a SEND ENV_USERVAR command.

 	The Common Vulnerabilities and Exposures project (cve.mitre.org)
 	has assigned the name CVE-2005-0488 to this issue.


2. Vulnerable Supported Versions

 	System				Binaries
 	----------------------------------------------------------------------
 	OpenServer 6.0.0 		/usr/bin/telnet


3. Solution

 	The proper solution is to install the latest packages.


4. OpenServer 6.0.0

 	4.1 Location of Fixed Binaries

 	ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2005.50


 	4.2 Verification

 	MD5 (VOL.000.000) = 46b46ad83b21d7e775d58fa80f15f584

 	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:

 	1) Download the VOL* files to a directory.

 	2) Run the custom command, specify an install
 	   from media images, and specify the directory as
 	   the location of the images.


5. References

 	Specific references for this advisory:
 		http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0488
 		http://idefense.com/application/poi/display?id=260&type=vulnerabilities

 	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 sr895063 fz533032
 	erg712953.


6. 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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