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________________________________________________________________________________
 		   Sun Microsystems, Inc. Security Bulletin
 		
Bulletin Number:	#00197
Date: 			August 23, 2000
Cross-Ref:		Foundstone Advisory FS-082200-11-JWS
Title:			Java Web Server	
________________________________________________________________________________

The information contained in this Security Bulletin is provided "AS IS." 
Sun makes no warranties of any kind whatsoever with respect to the information 
contained in this Security Bulletin. ALL EXPRESS OR IMPLIED CONDITIONS, 
REPRESENTATIONS AND WARRANTIES, INCLUDING ANY WARRANTY OF NON-INFRINGEMENT OR 
IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE 
HEREBY DISCLAIMED AND EXCLUDED TO THE EXTENT ALLOWED BY APPLICABLE LAW.

IN NO EVENT WILL SUN MICROSYSTEMS, INC. BE LIABLE FOR ANY LOST REVENUE, 
PROFIT OR DATA, OR FOR DIRECT, SPECIAL, INDIRECT, CONSEQUENTIAL, INCIDENTAL 
OR PUNITIVE DAMAGES HOWEVER CAUSED AND REGARDLESS OF ANY THEORY OF LIABILITY 
ARISING OUT OF THE USE OF OR INABILITY TO USE THE INFORMATION CONTAINED IN 
THIS SECURITY BULLETIN, EVEN IF SUN MICROSYSTEMS, INC. HAS BEEN ADVISED OF 
THE POSSIBILITY OF SUCH DAMAGES.

If any of the above provisions are held to be in violation of applicable law, 
void, or unenforceable in any jurisdiction, then such provisions are waived 
to the extent necessary for this disclaimer to be otherwise enforceable in 
such jurisdiction.
________________________________________________________________________________

1.  Bulletins Topics

    Sun announces the release of patches for Java Web Server 2.0 and 1.1.3
    which relate to a vulnerability with the administration module.

    Sun recommends that you install the patches listed in section 4 
    immediately on systems running Java Web Server.

2.  Who is Affected
	
	Vulnerable:		All versions of Java Web Server

3.  Understanding the Vulnerability

    It is possible to use the administration module to invoke servlets
    on a Java Web Server.  With carefully crafted JSP tags it is possible
    to execute arbitrary commands on the Web Server.
        
4.  List of Patches

    The following patches are available in relation to the above problem.
    For Java Web Server 1.1.1 or 1.1.2, first upgrade the Java Web Server
    and then install the appropriate patch.

    Java Web Server Version	Patch ID
    _______________________	________
  
    1.1.3			Patch 3
    2.0				Patch 3
  
    Patches are available at:
     
    http://java.sun.com/products/java-server/jws113patch3.html
 
    http://java.sun.com/products/java-server/jws20patch3.html
  
_______________________________________________________________________________    
Sun acknowledges, with thanks, Foundstone, Inc. for bringing this 
vulnerability to our attention.
_______________________________________________________________________________
APPENDICES

A.  Sun security bulletins are available at:

    http://sunsolve.sun.com/security
	
B.  Sun Security Coordination Team's PGP key is available at:

    http://sunsolve.sun.com/pgpkey.txt
		    	    	    
C.  To report or inquire about a security problem with Sun software, contact 
    one or more of the following:
  
        - Your local Sun answer centers
        - Your representative computer security response team, such as CERT 
        - Sun Security Coordination Team. Send email to:
	 
     		security-alert@sun.com

D.  To receive information or subscribe to our CWS (Customer Warning System) 
    mailing list, send email to:
    
    		security-alert@sun.com
   
    with a subject line (not body) containing one of the following commands:

        Command         Information Returned/Action Taken
        _______         _________________________________

        help            An explanation of how to get information
        
        key             Sun Security Coordination Team's PGP key
	
        list            A list of current security topics

        query [topic]   The email is treated as an inquiry and is forwarded to 
                        the Security Coordination Team

        report [topic]  The email is treated as a security report and is
                        forwarded to the Security Coordination Team. Please 
                        encrypt sensitive mail using Sun Security Coordination
                        Team's PGP key

        send topic      A short status summary or bulletin. For example, to 
                        retrieve a Security Bulletin #00138, supply the 
                        following in the subject line (not body):
        		
                                send #138

        subscribe       Sender is added to our mailing list.  To subscribe, 
                        supply the following in the subject line (not body):

                            	subscribe cws your-email-address
			
                        Note that your-email-address should be substituted
                        by your email address.
			
        unsubscribe     Sender is removed from the CWS mailing list.
________________________________________________________________________________

Copyright 2000 Sun Microsystems, Inc. All rights reserved. Sun, 
Sun Microsystems, Solaris and SunOS are trademarks or registered trademarks 
of Sun Microsystems, Inc. in the United States and other countries. This 
Security Bulletin may be reproduced and distributed, provided that this 
Security Bulletin is not modified in any way and is attributed to 
Sun Microsystems, Inc. and provided that such reproduction and distribution 
is performed for non-commercial purposes.

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