Document Title: =============== TextPattern v4.0.8 - Cross Site Request Forgery Vulnerability Release Date: ============= 2011-06-07 Vulnerability Laboratory ID (VL-ID): ==================================== 11 Product & Service Introduction: =============================== The Many Reasons to use Textpattern. With a browser-based interface in over 40 languages, excellent support and full range of features, it s no wonder that publishers, designers and developers everywhere choose Textpattern. (Copy of the Vendor Homepage: http://textpattern.com/) Abstract Advisory Information: ============================== An anonymous researcher discovered a Cross-Site-Request-Forgery vulnerability on the TextPattern web application. Vulnerability Disclosure Timeline: ================================== 2011-06-08: Discovery by Vulnerability-Lab Discovery Status: ================= Published Affected Product(s): ==================== Exploitation Technique: ======================= Remote Severity Level: =============== Low Technical Details & Description: ================================ A Cross Site Request Forgery vulnerability is detected on TextPattern 4.0.3. A not protected POST form request allows an attacker to change via required user inter-action application(admin) passwords. When successfully exploited by a auth user/admin account the vulnerability can lead to unauthorized access(Admin-Panel). Path: /textpattern/ Files: index.php --- POST --- new_pass=[new password]&mail_password=0&change_pass=Absenden&event=admin&step=change_pass Proof of Concept (PoC): ======================= Solution - Fix & Patch: ======================= Use form tokens to prevent against csrf attacks with user inter-action. (csrf token) Security Risk: ============== The security risk of the vulnerability is estimated as low because of high required user inter action & the client-side force. Credits & Authors: ================== N/A - Anonymous 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. Domains: www.vulnerability-lab.com - www.vuln-lab.com - www.vulnerability-lab.com/register Contact: admin@vulnerability-lab.com - support@vulnerability-lab.com - research@vulnerability-lab.com Section: video.vulnerability-lab.com - forum.vulnerability-lab.com - news.vulnerability-lab.com Social: twitter.com/#!/vuln_lab - facebook.com/VulnerabilityLab - youtube.com/user/vulnerability0lab Feeds: vulnerability-lab.com/rss/rss.php - vulnerability-lab.com/rss/rss_upcoming.php - vulnerability-lab.com/rss/rss_news.php Any modified copy or reproduction, including partially usages, of this file requires authorization from Vulnerability Laboratory. Permission to electronically redistribute this alert in its unmodified form is granted. All other rights, including the use of other media, are reserved by Vulnerability-Lab Research Team or its suppliers. All pictures, texts, advisories, sourcecode, videos and other information on this website is trademark of vulnerability-lab team & the specific authors or managers. To record, list (feed), modify, use or edit our material contact (admin@vulnerability-lab.com or support@vulnerability-lab.com) to get a permission. Copyright © 2012 | Vulnerability Laboratory