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LinuxOptic CMS 2009 Authentication Bypass

Posted on 29 August 2015

Document Title: =============== LinuxOptic CMS 2009 - Auth Bypass Session Vulnerability References (Source): ==================== http://www.vulnerability-lab.com/get_content.php?id=1585 Release Date: ============= 2015-08-26 Vulnerability Laboratory ID (VL-ID): ==================================== 1585 Common Vulnerability Scoring System: ==================================== 8.1 Product & Service Introduction: =============================== By employing the best brains in software programming, graphic designing and webmasters in our fold, we are today able to offer all-in-all services in areas as diverse as: Offshore Software Development Web-based and standalone Application Development Rich Internet Applications Web Design and Development Custom Software Programming Custom artwork, graphics and logos and multimedia designing Open Source Development and Solutions Internet Marketing (Copy of the Vendor Homepage: http://www.linuxoptic.com/content.php?page=about ) Abstract Advisory Information: ============================== An independent vulnerability laboratory researcher discovered a session auth bypass vulnerability in the official LinuxOptic 2009 content management system. Vulnerability Disclosure Timeline: ================================== 2015-08-26: Public Disclosure (Vulnerability Laboratory) Discovery Status: ================= Published Exploitation Technique: ======================= Remote Severity Level: =============== High Technical Details & Description: ================================ An auth bypass session vulnerability has been discovered in the official LinuxOptic 2009 content management system. The session vulnerability allows remote attackers to unauthorized access the administrator panel or the web user interface. The vulnerability is located in the session credentials request of the home.php file. The file allows direct requests of administrators without secure session credential check. Thus results in a session auth bypass issue that can finally lead to a full application compromise. The vulnerability is a classic auth bypass session issue in the admin panel of the content management system. The request method to bypass is GET and the attack vector of the issue is on the application-side of the service. The security risk of the auth bypass vulnerability is estimated as high with a cvss (common vulnerability scoring system) count of 8.1. Exploitation of the auth bypass session web vulnerability requires no privilege application user account or user interaction. Successful exploitation of the vulnerability results in unauthorized access to the admin panel, defacement, web-application and dbms compromise. Request Method(s): [+] GET Vulnerable Module(s) [+] Login (Session) Vulnerable File(s): [+] home.php Affected Module(s) [+] Account System - (Admin Panel) Proof of Concept (PoC): ======================= The auth bypass session vulnerability can be exploited by remote attackers without privilege application user account or user interaction. For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue. Manual steps to reproduce the vulnerability ... 1. First type the dork "Design by www.linuxoptic.com 2009" in google without Double quotes("). 2. Then after find the site in which their is written Design by www.linuxoptic.com 2009 in the footer 3. Now, go to it's admin page http://www.targetsite.com/adminpanel 4. After opening the admin panel . Follow this link http://www.targetsite.com/adminpanel/home.php ... and voila you will be directly login into the admin panel and you can also upload your backdoor and deface. 5. Successful reproduce of the remote vulnerability! PoC: Admin Panel: http://localhost:8080/adminpanel Auth Bypass Login Session Admin Panel: http://localhost:8080/adminpanel/home.php Security Risk: ============== The security risk of the auth bypass session web vulnerability is estimated as high. (CVSS 8.1) Credits & Authors: ================== Contact: https://securityresearchindia.wordpress.com > https://twitter.com/aaditya_purani 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. 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