====== Joomla! 1.0.x ~ 1.0.15 | Cross Site Scripting (XSS) Vulnerability ====== 1. OVERVIEW The Joomla! 1.0.x series are currently vulnerable to Cross Site Scripting. 2. BACKGROUND Joomla! is a free and open source content management system (CMS) for publishing content on the World Wide Web and intranets. 3. VULNERABILITY DESCRIPTION The "ordering" parameter in a core module,com_search, is not properly sanitized and thus vulnerable to XSS. By leveraging this vulnerability, attackers can compromise currently logged-in user/administrator session and impersonate arbitrary user actions available under /administrator/ functions. As the vulnerability is based on the core module, it affects both classic and customized Joomla! 1.0.x based web sites. 4. VERSIONS AFFECTED Joomla! 1.0.x ~ 1.0.15 series 5. PROOF-OF-CONCEPT/EXPLOIT http://attacker.in/joomla1015/index.php?option=com_search&searchword=xss &searchphrase=any&ordering=newest%22%20onmousemove=alert%28document.cook ie%29%20style=position:fixed;top:0;left:0;width:100%;height:100%;%22 6. SOLUTION Joomla 1.0.x series has been at end of life since 2009-07-22. Upgrade to Joomla! 1.5.x family (1.5.22 as of 2011-01-05) 7. VENDOR Joomla! Developer Team http://www.joomla.org 8. CREDIT This vulnerability was discovered by Aung Khant, http://yehg.net, YGN Ethical Hacker Group, Myanmar. 9. DISCLOSURE TIME-LINE 2011-01-03: notified Joomla! Security Strike Team regardless of EOL status 2011-01-06: vulnerability disclosed 10. REFERENCES Original Advisory URL: http://yehg.net/lab/pr0js/advisories/joomla/core/[joomla_1.0.x~15]_cross _site_scripting Joomla! 1.0.x End of Life - http://community.joomla.org/blogs/community/509-an-old-friend-comes-of-a ge.html OWASP Top 10: http://www.owasp.org/index.php/Category:OWASP_Top_Ten_Project CWE-79: http://cwe.mitre.org/data/definitions/79.html #yehg [2011-01-06] --------------------------------- Best regards, YGN Ethical Hacker Group Yangon, Myanmar http://yehg.net Our Lab | http://yehg.net/lab Our Directory | http://yehg.net/hwd