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Document Title: =============== Zikula CMS v1.3.5 - Multiple Web Vulnerabilities References (Source): ==================== http://www.vulnerability-lab.com/get_content.php?id=1114 Release Date: ============= 2013-10-16 Vulnerability Laboratory ID (VL-ID): ==================================== 1114 Common Vulnerability Scoring System: ==================================== 6.7 Product & Service Introduction: =============================== Zikula is an open source MVC web application framework, released under the LGPLv3, that allows you to rapidly build websites for any application including all forms of content management. Zikula is fast and flexible and easily extendable via a system on plugins, themes and extensions. No matter what your needs, Zikula can provide the solution. Whether it is a corporate presence with ecommerce, a simple blog or a community portal, Zikula can do it all. Best of all, its completely free. Our community forum provides you with the support and help you need free of charge. (Copy of the Vendor Homepage: http://zikula.org/CMS/Zikula/ ) Abstract Advisory Information: ============================== The Vulnerability Laboratory Research Team discovered multiple web vulnerabilities in the Zikula Content Management System v1.3.5 web-application. Vulnerability Disclosure Timeline: ================================== 2013-10-16:Public Disclosure (Vulnerability Laboratory) Discovery Status: ================= Published Affected Product(s): ==================== PostNuke e.V. Product: Zikula Content Management System - Web Application 1.3.5 Exploitation Technique: ======================= Remote Severity Level: =============== High Technical Details & Description: ================================ 1.1 A persistent input validation web vulnerability is detected in the Zikula Content Management System v1.3.5 web-application. The bug allows an attacker (remote) to implement/inject malicious own malicious persistent script codes (application side). The persistent web vulnerability is located in the <code>User Information (Page)</code> &<code>Profile Info (Page)</code> module. Remote attackers are able to change the regular real name in the profile info page to own malicious script codes. The script code execute occurs in the user profile info page of the public cms application. Exploitation of the persistent web vulnerability requires low user interaction and a low privileged web-application user account Successful exploitation of the vulnerability can lead to persistent session hijacking (customers), account steal via persistent web attacks, persistent phishing or persistent module context manipulation. Request Method(s): [+] [POST] Vulnerable Module(s): [+] User Information (Page) Vulnerable Parameter(s): [+] real name (z-formnote) Affected Module(s): [+] Profile Info 1.2 A client-side POST injection web vulnerability is detected in the official Zikula Content Management System v1.3.5 web-application. The non-persistent cross site web vulnerability allows an attacker to manipulate client side web application to browser GET method requests. The client-side cross site web vulnerability is located in the <code>login</code> module of the web-application. Remote attackers can inject via POST request method own malicious script codes as authentication_info (users_login) value. Exploitation of the vulnerability requires no privileged application user account but low or medium user interaction. Successful exploitation of the vulnerability results in session hijacking, client-side phishing, client-side external redirects or malware loads and client-side manipulation of the vulnerable module context. Request Method(s): [+] [POST] Vulnerable Module(s): [+] Login Vulnerable Parameter(s): [+] users_login_login_id > authentication_info > username & password text 1.3 A client-side cross site scripting web vulnerability is detected in the Zikula Content Management System v1.3.5 web-application. The non-persistent cross site scripting web vulnerability allows an attacker to manipulate client side web application GET method requests. The first client-side cross site vulnerability is located in the <code>func</code> value of the index.php file. Remote attackers are able to inject own malicious script codes via vulnerable <code>func</code> parameter in client-side GET method requests. The second client-side cross site vulnerability is located in the display name to path value GET method request. Remote attackers are able to inject own malicious script codes as regular path. The script code execute occurs in the news display path. Attackers can change the regular path with script code to execute the client-side malicious context. Exploitation of the vulnerability requires no privileged application user account but low or medium user interaction. Successful exploitation of the vulnerability results in session hijacking, client-side phishing, client-side external redirects or malware loads and client-side manipulation of the vulnerable module context. Request Method(s): [+] [GET] Vulnerable Parameter(s): [+] display path [+] func Proof of Concept (PoC): ======================= 1.1 The persistent input validation web vulnerability can be exploited by remote attackers with low privileged application user account and low user interaction. For demonstration or reproduce ... Inject via Real Name http://zikula.localhost:8080/en/profile/modify Exploitation in Profile http://zikula.localhost:8080/en/profile/view/[PROFILE NAME] PoC: Personal Info - Profile (Users) <div class="z-formrow"> <strong class="z-label">Real name:</strong> <span class="z-formnote">>"<<>"<[PERSISTENT INJECTED SCRIPT CODE!]"> >"<<>"<[PERSISTENT INJECTED SCRIPT CODE!/a></span> </div> <div class="z-formrow"> <strong class="z-label">Site:</strong> <span class="z-formnote"><a href="http://zikula.localhost:8080" title="demoadmin's site" rel="nofollow">http://zikula.localhost:8080</a></span> </div> --- PoC Session Logs (Response/Request) --- POST http://demo.zikula.de/en/profile/update Load Flags[LOAD_DOCUMENT_URILOAD_INITIAL_DOCUMENT_URI] Content Size[20] Mime Type[text/html] Request Headers: Host[demo.zikula.de] User-Agent[Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0] Accept[text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8] Accept-Language[en-US,en;q=0.5] Accept-Encoding[gzip, deflate] DNT[1] Referer[http://demo.zikula.de/en/profile/modify] Cookie[ZKSID2=7d8348a4744c45ab23713f42d621915c4b8a58cd] Connection[keep-alive] Post Data: csrftoken[NTI1ZGQzNWY3OGE1NjguMjUxNTI5ODM6MTY3NDgyMTU3MzlhNDI4NmEzYzhkNjRmMTczZTRkYWU6MTM4MTg4MDY3MQ%3D%3D] dynadata%5Brealname%5D[%3E%22%3C%3C%3E%22%3C[PERSISTENT INJECTED SCRIPT CODE!%3E] dynadata%5Bpublicemail%5D[] dynadata%5Burl%5D[http%3A%2F%2Fdemo.zikula.de] dynadata%5Btzoffset%5D[1] dynadata%5Bavatar%5D[010.gif] dynadata%5Bicq%5D[] dynadata%5Baim%5D[] dynadata%5Byim%5D[] dynadata%5Bmsnm%5D[] dynadata%5Bcity%5D[] dynadata%5Boccupation%5D[] dynadata%5Bsignature%5D[] dynadata%5Bextrainfo%5D[] dynadata%5Binterests%5D[] submit[] Response Headers: Date[Tue, 15 Oct 2013 23:44:42 GMT] Server[Apache] Expires[Thu, 19 Nov 1981 08:52:00 GMT] Cache-Control[no-store, no-cache, must-revalidate, post-check=0, pre-check=0] Pragma[no-cache] Set-Cookie[bb2_screener_=1381880682+84.150.67.47; path=//] X-Frames-Options[SAMEORIGIN] X-XSS-Protection[1] Location[http://demo.zikula.de/en/profile/view/demoadmin] Vary[Accept-Encoding] Content-Encoding[gzip] Content-Length[20] Keep-Alive[timeout=1, max=100] Connection[Keep-Alive] Content-Type[text/html; charset=UTF-8] Status: 200[OK] GET http://demo.zikula.de/en/profile/view/demoadmin Load Flags[LOAD_DOCUMENT_URILOAD_REPLACELOAD_INITIAL_DOCUMENT_URI] Content Size[8967] Mime Type[text/html] Request Headers: Host[demo.zikula.de] User-Agent[Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0] Accept[text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8] Accept-Language[en-US,en;q=0.5] Accept-Encoding[gzip, deflate] DNT[1] Referer[http://demo.zikula.de/en/profile/modify] Cookie[ZKSID2=7d8348a4744c45ab23713f42d621915c4b8a58cd] Connection[keep-alive] Response Headers: Date[Tue, 15 Oct 2013 23:44:43 GMT] Server[Apache] Expires[Thu, 19 Nov 1981 08:52:00 GMT] Cache-Control[no-store, no-cache, must-revalidate, post-check=0, pre-check=0] Pragma[no-cache] Set-Cookie[bb2_screener_=1381880683+84.150.67.47; path=//] X-Frames-Options[SAMEORIGIN] X-XSS-Protection[1] Vary[Accept-Encoding] Content-Encoding[gzip] Content-Length[8967] Keep-Alive[timeout=1, max=99] Connection[Keep-Alive] Content-Type[text/html; charset=UTF-8] Status: 200[OK] GET http://vuln-lab.com/ Load Flags[LOAD_DOCUMENT_URI] Content Size[65038] Mime Type[text/html] Request Headers: Host[vuln-lab.com] User-Agent[Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0] Accept[text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8] Accept-Language[en-US,en;q=0.5] Accept-Encoding[gzip, deflate] DNT[1] Referer[http://demo.zikula.de/en/profile/view/demoadmin] Cookie[PHPSESSID=68989d80ca49d28477fa69e191ef5653] Connection[keep-alive] Response Headers: Cache-Control[no-store, no-cache, must-revalidate, post-check=0, pre-check=0] Pragma[no-cache] Content-Type[text/html] Expires[Thu, 19 Nov 1981 08:52:00 GMT] Server[Microsoft-IIS/7.0] Drupal[nginx] X-Powered-By[ASP.NET] X-Powered-By-Plesk[PleskWin] Date[Tue, 15 Oct 2013 23:44:07 GMT] Content-Length[65038] 1.2 The client-side POST inject web vulnerability can be exploited by remote attackers without privileged application user account and low user interaction. For demonstration or reproduce ... Inject & Affected by Exploitation http://zikula.localhost:8080/en/benutzer/login PoC:Login - Username & Password <fieldset> <div id="users_login_fields"> <div class="z-formrow"> <label for="users_login_login_id">User name</label> <input id="users_login_login_id" name="authentication_info[login_id]" maxlength="64" value=">" <<="" type="text">"<[NON-PERSISTENT INJECTED SCRIPT CODE VIA POST METHOD!]"> >" /> </div> --- PoC Session Logs (Response/Request) --- Status: 200[OK] POST http://zikula.localhost:8080/en/benutzer/login Load Flags[LOAD_DOCUMENT_URILOAD_INITIAL_DOCUMENT_URI] Content Size[10101] Mime Type[text/html] Request Headers: Host[zikula.localhost:8080] User-Agent[Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0] Accept[text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8] Accept-Language[en-US,en;q=0.5] Accept-Encoding[gzip, deflate] DNT[1] Referer[http://zikula.localhost:8080/en/benutzer/login] Cookie[ZKSID2=196ab1525de479adc56a04829204d4b389462996] Connection[keep-alive] Post Data: authentication_method%5Bmodname%5D[Users] authentication_method%5Bmethod%5D[uname] returnpage[] csrftoken[NTI1ZGQ0M2RkYTE2NDYuMTIwMTA5MjA6MDZmM2JhNmM1YzU0ZDgzYWQzN2JhMTNlYTkzYTUwMDM6MTM4MTg4MDg5Mw%3D%3D] event_type[login_screen] authentication_info%5Blogin_id%5D[%3E%22%3C%3C%3E%22%3C[NON-PERSISTENT INJECTED SCRIPT CODE!]%3E+%3E] authentication_info%5Bpass%5D[%3E%22%3C%3C%3E%22%3C[NON-PERSISTENT INJECTED SCRIPT CODE!]%3A%2F%2F] rememberme[1] submit[] 1.3 The client-side cross site scripting web vulnerabilities can be exploited by remote attackers without privileged application user account and low or medium user interaction. For demonstration or reproduce ... http://zikula.localhost:8080/en/news/display/camp-zikula-&[CLIENT-SIDE CROSS SITE SCRIPTING VULNERABILITY!]// http://zikula.localhost:8080/index.php?module=benutzer&type=admin&func=-%27+[CLIENT-SIDE CROSS SITE SCRIPTING VULNERABILITY!]&lang=en&userid=3 Solution - Fix & Patch: ======================= 1.1 The first persistent input validation web vulnerability can be patched by a secure encode and parse of the real name profile input fields. Also parse the vulnerable user profile info output page to ensure the issue is fixed. 1.2 Parse the username input field in the login module. Encode also the vulnerable users_login_id and authentication_info[login] values. 1.3 Parse and encode the vulnerable func value parameter in the index.php. Encode and filter the path value in the display section to prevent client-side attacks. Security Risk: ============== 1.1 The security risk of the persistent input validation web vulnerability is estimated as high(+). 1.2 The security risk of the non-persistent post inject web vulnerability is estimated as medium(+). 1.3 The security risk of the client-side cross site scripting web vulnerabilities are estimated as low(+)|(-)medium. Credits & Authors: ================== Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri (bkm@evolution-sec.com) [www.vulnerability-lab.com] Disclaimer & Information: ========================= The information provided in this advisory is provided as it is without any warranty. Vulnerability Lab disclaims all warranties, either expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability- Lab or its suppliers are not liable in any case of damage, including direct, indirect, incidental, consequential loss of business profits or special damages, even if Vulnerability-Lab or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply. We do not approve or encourage anybody to break any vendor licenses, policies, deface websites, hack into databases or trade with fraud/stolen material. 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