Module: Msf::Auxiliary::VYOS

Includes:
Report
Defined in:
lib/msf/core/auxiliary/vyos.rb

Overview

This module provides methods for working with VyOS equipment

Instance Method Summary collapse

Methods included from Report

#active_db?, #create_cracked_credential, #create_credential, #create_credential_and_login, #create_credential_login, #db, #db_warning_given?, #get_client, #get_host, #inside_workspace_boundary?, #invalidate_login, #mytask, #myworkspace, #myworkspace_id, #report_auth_info, #report_client, #report_exploit, #report_host, #report_loot, #report_note, #report_service, #report_vuln, #report_web_form, #report_web_page, #report_web_site, #report_web_vuln, #store_cred, #store_local, #store_loot

Methods included from Metasploit::Framework::Require

optionally, optionally_active_record_railtie, optionally_include_metasploit_credential_creation, #optionally_include_metasploit_credential_creation, optionally_require_metasploit_db_gem_engines

Instance Method Details

#vyos_config_eater(thost, tport, config, store = true) ⇒ Object


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# File 'lib/msf/core/auxiliary/vyos.rb', line 14

def vyos_config_eater(thost, tport, config, store = true)

  credential_data = {
    address: thost,
    port: tport,
    protocol: 'tcp',
    workspace_id: myworkspace_id,
    origin_type: :service,
    private_type: :nonreplayable_hash,
    # jtr_format: 'sha512,crypt', # default on the devices 11.4.0+
    service_name: '',
    module_fullname: fullname,
    status: Metasploit::Model::Login::Status::UNTRIED
  }

  # Default SNMP to UDP
  if tport == 161
    credential_data[:protocol] = 'udp'
  end

  if store && !config.include?('such file or directory') && !config.include?('ermission denied')
    l = store_loot('vyos.config', 'text/plain', thost, config.strip, 'config.txt', 'VyOS Configuration')
    vprint_good("#{thost}:#{tport} Config saved to: #{l}")
  end

  host_info = {
    host: thost,
    os_name: 'VyOS'
  }
  report_host(host_info)

  # generated by: cat /config/config.boot
  # https://github.com/rapid7/metasploit-framework/issues/14124

  # login {
  #    user jsmith {
  #        authentication {
  #            encrypted-password $6$ELBrDuW7c/8$nN7MwUST8s8O0R6HMNu/iPoTQ1s..y8HTnXraJ7Hh4bHefRmjt/2U08ZckEw4FU034wbWaeCaB5hq7mC6fNXl/
  #            plaintext-password ""
  #        }
  #        full-name "John Smith"
  #        level operator
  #    }
  #    user vyos {
  #        authentication {
  #            encrypted-password $1$5HsQse2v$VQLh5eeEp4ZzGmCG/PRBA1
  #            plaintext-password ""
  #        }
  #        level admin
  #    }
  # }

  # sometimes the hash is masked

  # login {
  #   user vyos {
  #        authentication {
  #            encrypted-password ****************
  #            plaintext-password ""
  #        }
  #        level admin
  #    }
  # }

  # plaintext-password can also be missing: https://github.com/rapid7/metasploit-framework/pull/14161#discussion_r492884039

  # in >= 1.3 'level' is no longer included and defaults to admin.

  r =  'user ([^ ]+) {\s*authentication {\s*'
  r << 'encrypted-password (\$?[\w$\./\*]*)\s*' # leading $ is optional incase the password is all stars
  r << '(?:plaintext-password "([^"]*)")?\s*' # optional
  r << '}'
  r << '(?:\s*full-name "([^"]*)")?\s*' # optional
  r << '(?:level (operator|admin))?' # 1.3+ seems to have removed operator
  config.scan(/#{Regexp.new(r)}/mi).each do |result|
    username = result[0].strip
    hash = result[1].strip
    # full-name is an optional field
    # we label it, but dont actually use it.  Maybe future expansion?
    unless result[3].nil?
      name = result[3].strip
    end
    if result[4].nil?
      level = 'admin'
    else
      level = result[4].strip
    end
    cred = credential_data.dup
    cred[:username] = username
    unless hash.start_with?('********') # if not in config mode these are masked
      cred[:jtr_format] = identify_hash(hash)
      cred[:private_data] = hash
      print_hash = " with hash #{hash}"
    end
    cred[:access_level] = level
    (cred) if framework.db.active
    unless result[2].to_s.strip.empty?
      plaintext = result[2].strip
      cred[:jtr_format] = ''
      cred[:private_type] = :password
      cred[:private_data] = plaintext
      (cred) if framework.db.active
      print_hash = "with password #{plaintext}"
    end
    print_good("#{thost}:#{tport} Username '#{username}' with level '#{level}'#{print_hash}")
  end

  # generated by: cat /config/config.boot

  # service {
  #    snmp {
  #      community ro {
  #        authorization ro
  #      }
  #      community write {
  #        authorization rw
  #      }
  #    }
  #  }

  config.scan(/community (\w+) {\n\s+authorization (ro|rw)/).each do |result|
    cred = credential_data.dup
    cred[:port] = 161
    cred[:protocol] = 'udp'
    cred[:service_name] = 'snmp'
    cred[:jtr_format] = ''
    cred[:private_data] = result[0].strip
    cred[:private_type] = :password
    cred[:access_level] = result[1].strip
    (cred) if framework.db.active
    print_good("#{thost}:#{tport} SNMP Community '#{result[0].strip}' with #{result[1].strip} access")
  end

  # generated by: cat /config/config

  # host-name vyos

  # interfaces {
  #     ethernet eth0 {
  #         duplex auto
  #         hw-id 00:0c:29:c7:af:bc
  #         smp_affinity auto
  #         speed auto
  #     }
  #     ethernet eth0 {
  #         address 1.1.1.1/8
  #         hw-id 00:0c:29:c7:af:cc
  #     }
  #     loopback lo {
  #     }
  # }

  # /* Release version: VyOS 1.1.8 */
  # // Release version: VyOS 1.3-rolling-202008270118

  if /host-name (.+)\n/ =~ config
    print_good("#{thost}:#{tport} Hostname: #{$1.strip}")
    host_info[:name] = $1.strip
    report_host(host_info) if framework.db.active
  end

  if %r{^/[/\*]\s?Release version: ([\w \.-]+)} =~ config
    print_good("#{thost}:#{tport} OS Version: #{$1.strip}")
    host_info[:os_flavor] = $1.strip
    report_host(host_info) if framework.db.active
  end

  #config.scan(%r{ethernet (eth\d{1,3}) {[\w\s":-]+(?:address ([\d\.]{6,16}/\d{1,2})[\w\s:-]+)?(?:description "?([\w\.\_\s]+)"?[\w\s:-]+)?hw-id (\w{2}:\w{2}:\w{2}:\w{2}:\w{2}:\w{2})[\w\s:-]+}}).each do |result|
  r =  'ethernet (eth\d{1,3}) {[\w\s":-]+'
  r << '(?:address ([\d\.]{6,16}/\d{1,2})[\w\s:-]+)?'
  r << '(?:description ["\']?([\w\.\_\s]+)["\']?[\w\s:-]+)?'
  r << 'hw-id (\w{2}:\w{2}:\w{2}:\w{2}:\w{2}:\w{2})[\w\s:-]+'
  r << '}'
  config.scan(/#{Regexp.new(r)}/i).each do |result|
    name = result[0].strip
    mac = result[3].strip
    host_info[:mac] = mac
    output = "#{thost}:#{tport} Interface #{name} (#{mac})"

    # static IP address
    unless result[1].nil?
      ip = result[1].split('/')[0].strip
      host_info[:host] = ip
      output << " - #{ip}"
    end

    # description
    unless result[2].nil?
      output << " with description: #{result[2].strip}"
    end
    report_host(host_info) if framework.db.active
    print_good(output)
  end

  # https://docs.vyos.io/en/crux/interfaces/wireless.html

  # server has type 'access-point', client is 'station'

  # interfaces {
  #  wireless wlan0 {
  #        address 192.168.2.1/24
  #        channel 1
  #        mode n
  #        security {
  #            wpa {
  #                cipher CCMP
  #                mode wpa2
  #                passphrase "12345678"
  #            }
  #        }
  #        ssid "TEST"
  #        type access-point
  #    }
  #}

  config.scan(/wireless (wlan\d{1,3}) {\s+.+passphrase "([^\n"]+)"\s+.+ssid ["']?([^\n"]+)["']?\s+type (access-point|station)/mi).each do |result|
    device = result[0].strip
    password = result[1].strip
    ssid = result[2].strip
    type = result[3].strip
    cred = credential_data.dup
    cred[:port] = 1
    cred[:protocol] = 'tcp'
    type == 'access-point' ? cred[:service_name] ='wireless AP' : cred[:service_name] ='wireless'
    cred[:jtr_format] = ''
    cred[:private_data] = password
    cred[:username] = ssid
    cred[:private_type] = :password
    (cred) if framework.db.active
    print_good("#{thost}:#{tport} Wireless #{type} '#{ssid}' with password: #{password}")
  end

  # wireless (server) with radius

  # interfaces {
  #  wireless wlan0 {
  #        address 192.168.2.1/24
  #        channel 1
  #        mode n
  #        security {
  #            wpa {
  #                cipher CCMP
  #                mode wpa2
  #                radius {
  #                    server 192.168.3.10 {
  #                        key 'VyOSPassword'
  #                        port 1812
  #                    }
  #                }
  #            }
  #        }
  #        ssid "Enterprise-TEST"
  #        type access-point
  #    }
  # }

  r =  'wireless (wlan\d{1,3}) {\s*'
  r << '.+radius {\s+'
  r << 'server ([^\s]+) {\s*'
  r << 'key [\'"]?([^\n"]+)[\'"]?\s*'
  r << 'port (\d{1,5})\s*'
  r << '.+ssid [\'"]?([^\n"\']+)[\'"]?\s*'
  r << 'type (access-point|station)'

  #config.scan(/#{Regexp.new(r)}/mi).each do |result|
  config.scan(/wireless (wlan\d{1,3}) {\s*.+radius {\s+server ([^\s]+) {\s*key ['"]?([^\n"']+)['"]?\s*port (\d{1,5})\s*.+ssid ['"]?([^\n"']+)['"]?\s*type (access-point|station)/mi).each do |result|
    device = result[0].strip
    server = result[1].strip
    password = result[2].strip
    server_port = result[3].strip
    ssid = result[4].strip
    type = result[5].strip
    cred = credential_data.dup
    cred[:port] = 1
    cred[:protocol] = 'tcp'
    type == 'access-point' ? cred[:service_name] ='wireless AP' : cred[:service_name] ='wireless'
    cred[:jtr_format] = ''
    cred[:private_data] = password
    cred[:username] = ssid
    cred[:private_type] = :password
    (cred) if framework.db.active
    print_good("#{thost}:#{tport} Wireless #{type} '#{ssid}' with radius password: #{password} to #{server}#{server_port}")
  end

  # https://docs.vyos.io/en/crux/services/ipoe-server.html#radius-setup

  # https://docs.vyos.io/en/crux/services/webproxy.html#authentication

  # https://docs.vyos.io/en/crux/vpn/pptp.html#server-example

  # https://docs.vyos.io/en/crux/interfaces/l2tpv3.html#l2tpv3-over-ipsec-l2-vpn-bridge

  # https://docs.vyos.io/en/crux/interfaces/pppoe.html#pppoe

  # /config/auth/ldap-auth.config

end