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Category:   Application (Web Server/CGI)  >   LiteWebServer Vendors:   Gefion Software
LiteWebServer Discloses JSP Source Code to Remote Users
SecurityTracker Alert ID:  1001915
SecurityTracker URL:  http://securitytracker.com/id/1001915
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Jul 3 2001
Impact:   Disclosure of user information
Exploit Included:  Yes  
Version(s): 2.2.1 and prior
Description:   A vulnerability has been reported in LiteWebServer that allows a remote user to obtain the source code of JSP files.

A remote user can specify encoded characters in a URL request to cause the LiteWebServer to display the source code of JSP files.

For example, a remote user can use a %2E character instead of '.' or a %70 instead of 'p' in the URL to have the web server return the source code:

http://[targethost]:9090/examples/jsp/num/numguess%2Ejsp
http://[targethost]:9090/examples/jsp/num/numguess.js%70

Impact:   A remote user can obtain JSP source code from the web server.
Solution:   No solution was available at the time of this entry.
Vendor URL:  www.gefionsoftware.com/LiteWebServer/index.jsp (Links to External Site)
Cause:   Input validation error
Underlying OS:  Java

Message History:   None.


 Source Message Contents

Subject:  [NT] LiteWebServer JSP Source File Discolsure


The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com


  LiteWebServer JSP Source File Discolsure
------------------------------------------------------------------------


SUMMARY

 <http://www.gefionsoftware.com/LiteWebServer/index.jsp> LiteWebServer is 
a pure Java web server with native support for the Servlet 2.2 API and 
Java Server Pages (JSP) 1.1. A security vulnerability in the product 
allows attackers to access the source code of JSP files.

DETAILS

Vulnerable systems:
LiteWebServer version 2.2.1 and prior

Immune systems:
LiteWebServer version 2.2.2

By using HTML encoded characters instead of the real letters in a request 
URL it is possible to cause the LiteWebServer to display the source code 
of JSP files.

By adding a %2E which is equal to '.', or %70 which equals to 'p' it 
possible to cause the LiteWebServer to display the content of JSP files.

For example:

 http://www.example.com:9090/examples/jsp/num/numguess%2Ejsp
 http://www.example.com:9090/examples/jsp/num/numguess.js%70


ADDITIONAL INFORMATION

The information has been provided by  <mailto:gluckninja@yahoo.com> Gluck 
ninja and  <mailto:hans@gefionsoftware.com> Hans Bergsten.



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