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Category:   Application (Web Server/CGI)  >   Apache Tomcat Vendors:   Apache Software Foundation
(Caldera Issues Fix) Tomcat Java Server Lets Remote Users Cause Arbitrary Javascript to be Executed by Another User's Browser
SecurityTracker Alert ID:  1002155
SecurityTracker URL:  http://securitytracker.com/id/1002155
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Aug 7 2001
Impact:   Execution of arbitrary code via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): Tomcat 3.2.1, 3.2.2-beta, 4.0-beta
Description:   A cross-site scripting vulnerability has been reported in the Tomcat Java server that allows remote users create specially crafted URLs that will cause Javascript to be executed by other users.

Tomcat is vulnerable to a URL cross-site scripting attack.

The following requests for non-existent files will cause the server to return the specified JavaScript code in the 'File Not Found' reply sent back to the requesting user.

http://[targethost]/jsp-mapped-dir/<SCRIPT>alert(document.cookie)</SCRIPT>.jsp

The Javascript code will then be executed by the requesting user within the server's domain.

Impact:   A remote user can create a web page or send an HTML-based e-mail message containing a specific URL that, when clicked on by the target user or when automatically fetched via Javascript code, will cause code in the URL to be executed by the target user's browser. The code will appear to the browser to be code from the server.
Solution:   The vendor has released a fix for Caldera Linux. See the Source Message for the vendor's advisory containing directions on how to obtain the appropriate fix.
Vendor URL:  jakarta.apache.org/tomcat/ (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Caldera/SCO)

Message History:   This archive entry is a follow-up to the message listed below.
Jul 2 2001 Tomcat Java Server Lets Remote Users Cause Arbitrary Javascript to be Executed by Another User's Browser



 Source Message Contents

Subject:  Security Update: [CSSA-2001-028.0] Linux - Tomcat security problems


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

______________________________________________________________________________
		   Caldera International, Inc.  Security Advisory

Subject:		Linux - Tomcat security problems
Advisory number: 	CSSA-2001-028.0
Issue date: 		2001, August 02
Cross reference:
______________________________________________________________________________


1. Problem Description

   There are several security problems with Jakarta-Tomcat, a Java
   Servlet Engine, shipped as part of OpenLinux 3.1 Server. Several
   vulnerabilities allowed attackers to view files in the system.
   A second problem allowed so-called cross-site scripting, where
   a hostile Web server can feed JavaScript or other code to a web
   browser, making it appear to originate from the server running
   tomcat.


2. Vulnerable Versions

   System                       Package
   -----------------------------------------------------------
   OpenLinux 2.3                 not vulnerable                
   
   OpenLinux eServer 2.3.1       not vulnerable                
   and OpenLinux eBuilder                                      
   
   OpenLinux eDesktop 2.4        not vulnerable                
   
   OpenLinux Server 3.1          All packages previous to      
                                 jakarta-tomcat-3.2.3-3        
   
   OpenLinux Workstation 3.1     not vulnerable                
   


3. Solution

   Workaround

     none

   The proper solution is to upgrade to the latest packages.

4. OpenLinux 2.3

    not vulnerable

5. OpenLinux eServer 2.3.1 and OpenLinux eBuilder for ECential 3.0

    not vulnerable

6. OpenLinux eDesktop 2.4

    not vulnerable

7. OpenLinux 3.1 Server

    7.1 Location of Fixed Packages

       The upgrade packages can be found on Caldera's FTP site at:

       ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Server/current/RPMS

       The corresponding source code package can be found at:

       ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Server/current/SRPMS

   7.2 Verification

       b2b4fa902845eb88b81b7778d9625e2f  RPMS/jakarta-tomcat-3.2.3-3.i386.rpm
       275881e7034ff900d67631b27f620025  SRPMS/jakarta-tomcat-3.2.3-3.src.rpm
       

   7.3 Installing Fixed Packages

       Upgrade the affected packages with the following commands:

         rpm -Fvh jakarta-tomcat-3.2.3-3.i386.rpm
         

8. OpenLinux 3.1 Workstation

    not vulnerable

9. References

   This and other Caldera security resources are located at:

   http://www.caldera.com/support/security/index.html

   This security fix closes Caldera's internal Problem Report 9690,
   9691, 10166, 10247.

10. Disclaimer

   Caldera International, Inc. 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 Caldera OpenLinux.
______________________________________________________________________________
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Comment: For info see http://www.gnupg.org

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