Title: ====== Better WP Security v3.4.3 Wordpress - Web Vulnerabilities
Date: ===== 2012-08-20 References: =========== http://www.vulnerability-lab.com/get_content.php?id=691 VL-ID: ===== 691 Common Vulnerability Scoring System: ==================================== 3.5 Introduction: ============= plugin thereby ensuring that as many security holes as possible are patched without having to worry about conflicting features or the possibility of missing anything on your site. With one-click activation for most features as well as advanced features for experienced users Better WP Security can help protect any site. (Copy of the Vendor Homepage: http://wordpress.org/extend/plugins/better-wp-security/ ) Abstract: ========= The Vulnerability Laboratory Research Team discovered multiple persistent web vulnerabilities in the Better WP security v3.4.3 Wordpress Application Addon. Report-Timeline: ================ 2012-08-21: Public Disclosure Status: ======== Published Exploitation-Technique: ======================= Remote Severity: ========= Medium Details: ======== Multiple persistent input validation vulnerabilities are detected in the Better WP security v3.4.3 Wordpress Application Addon. The vulnerability allows remote attackers to hijack website customer, moderator or admin sessions with medium or high required user inter action. The bugs are located on server side in the Limit Login Attempts, Exception Handling Error & Intrusion Detection module with the bound vulnerable email address & error parameter. Successful exploitation can result in wordpress application account steal, client side phishing & client-side content request manipulation. Exploitation requires medium or high user inter action & without privileged web application user account. Vulnerable Module(s): [+] Better WP Security - Limit Login Attempts & Intrusion Detection [+] Exception Handling Error Vulnerable Parameter(s): [+] Email Address [+] Error Proof of Concept: ================= The persistent vulnerability can be exploited by remote attackers with low required user inter action & low privileged application user account. For demonstration or reproduce ... Inject the following example string to the application input (persistent) or parameter (client side) String: >"<iframe src=http://www.vulnerability-lab.com></iframe> Review: Listings <tr valign="top"> <th scope="row" class="settinglabel"> <label for="" "ll_emailaddress"="">Email Address</label> </th> <td class="settingfield"> <input id="ll_emailaddress" name="ll_emailaddress" value="\" type="text"> <[PERSISTENT INJECTED SCRIPT CODE!]")' <="" ad...@vulnerability-lab.com"=""> Review: Exception Handling <div class="error" style="text-align: center;"><p style="color: red; font-size: 14px; font-weight: bold;">Attention !</p><p> Please add this site now to your <a target="_blank" href="http://managewp.com/wp-admin";>ManageWP.com</a> account. Or deactivate the Worker plugin to avoid <a target="_blank" href="http://managewp.com/user-guide/security";>security issues</a>. </p></div><div id="message" class="error"><p>Login time period needs to be aan integer greater than 0.</p></div> <div id="message" class="error"><p>\"><[PERSISTENT INJECTED SCRIPT CODE!]")' <="" is="" not="" a="" valid="" ip.<="" p=""></div> Solution: ========= The vulnerabilities can be patched by parsing the email address & error exception handling parameters and output listing. Risk: ===== The security risk of the persistent input validation vulnerabilities are estimated as medium. Credits: ======== Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri (b...@vulnerability-lab.com) Disclaimer: =========== 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. 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