Module: Msf::Auxiliary::Cisco

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

Overview

This module provides methods for working with Cisco 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

#cisco_ios_config_eater(thost, tport, config) ⇒ Object 



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# File 'lib/msf/core/auxiliary/cisco.rb', line 36

def cisco_ios_config_eater(thost, tport, config)

  if framework.db.active
    credential_data = {
      address: thost,
      port: tport,
      protocol: 'tcp',
      workspace_id: myworkspace_id,
      origin_type: :service,
      private_type: :password,
      service_name: '',
      module_fullname: fullname,
      status: Metasploit::Model::Login::Status::UNTRIED
    }
  end

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

  store_loot('cisco.ios.config', 'text/plain', thost, config.strip, 'config.txt', 'Cisco IOS Configuration')

  tuniface = nil

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

  config.each_line do |line|
    case line
      #
      # Cover host details
      #
    when /^version (\d\d\.\d)/i
      host_info[:os_flavor] = Regexp.last_match(1).to_s
      report_host(host_info)
    when /^hostname (\S+)/i
      host_info[:name] = Regexp.last_match(1).to_s
      report_host(host_info)
      #
      # Enable passwords
      #
    when /^\s*enable (password|secret) (\d+) (.*)/i
      stype = Regexp.last_match(2).to_i
      shash = Regexp.last_match(3).strip

      if framework.db.active
        cred = credential_data.dup
        cred[:private_data] = shash
      else
        cred = {} # throw away
      end

      case stype
      when 5
        print_good("#{thost}:#{tport} MD5 Encrypted Enable Password: #{shash}")
        cred[:jtr_format] = 'md5'
        cred[:private_type] = :nonreplayable_hash
        (cred) if framework.db.active
      when 0 # unencrypted
        print_good("#{thost}:#{tport} Enable Password: #{shash}")
        (cred) if framework.db.active
      when 7
        shash = begin
                cisco_ios_decrypt7(shash)
                rescue StandardError
                  shash
              end
        print_good("#{thost}:#{tport} Decrypted Enable Password: #{shash}")
        cred[:private_data] = shash
        (cred) if framework.db.active
      end

    when /^\s*enable password (.*)/i
      spass = Regexp.last_match(1).strip
      print_good("#{thost}:#{tport} Unencrypted Enable Password: #{spass}")

      if framework.db.active
        cred = credential_data.dup
        cred[:private_data] = spass
        (cred)
      end

      #
      # SNMP
      #
    when /^\s*snmp-server community ([^\s]+) (RO|RW)/i
      stype = Regexp.last_match(2).strip
      scomm = Regexp.last_match(1).strip
      print_good("#{thost}:#{tport} SNMP Community (#{stype}): #{scomm}")

      cred = credential_data.dup
      cred[:access_level] = stype.upcase
      cred[:protocol] = "udp"
      cred[:port] = 161
      cred[:private_data] = scomm
      (cred)
#
# VTY Passwords
#
    when /^\s*password 7 ([^\s]+)/i
      spass = Regexp.last_match(1).strip
      spass = begin
              cisco_ios_decrypt7(spass)
              rescue StandardError
                spass
            end

      print_good("#{thost}:#{tport} Decrypted VTY Password: #{spass}")

      if framework.db.active
        cred = credential_data.dup
        cred[:private_data] = spass
        (cred)
      end

    when /^\s*(password|secret) 5 (.*)/i
      shash = Regexp.last_match(2).strip
      print_good("#{thost}:#{tport} MD5 Encrypted VTY Password: #{shash}")
      if framework.db.active
        cred = credential_data.dup
        cred[:jtr_format] = 'md5'
        cred[:private_data] = shash
        cred[:private_type] = :nonreplayable_hash
        (cred)
      end

    when /^\s*password (0 |)([^\s]+)/i
      spass = Regexp.last_match(2).strip
      print_good("#{thost}:#{tport} Unencrypted VTY Password: #{spass}")

      if framework.db.active
        cred = credential_data.dup
        cred[:private_data] = spass
        (cred)
      end

      #
      # WiFi Passwords
      #
    when /^\s*encryption key \d+ size \d+bit (\d+) ([^\s]+)/
      spass = Regexp.last_match(2).strip
      print_good("#{thost}:#{tport} Wireless WEP Key: #{spass}")

    when /^\s*wpa-psk (ascii|hex) (\d+) ([^\s]+)/i

      stype = Regexp.last_match(2).to_i
      spass = Regexp.last_match(3).strip

      if framework.db.active
        cred = credential_data.dup
        cred[:private_data] = spass
      else
        cred = {} # throw away
      end

      case stype
      when 5
        print_good("#{thost}:#{tport} Wireless WPA-PSK MD5 Password Hash: #{spass}")
        cred[:jtr_format] = 'md5'
        cred[:private_type] = :nonreplayable_hash
        (cred) if framework.db.active
      when 0
        print_good("#{thost}:#{tport} Wireless WPA-PSK Password: #{spass}")
        (cred) if framework.db.active
      when 7
        spass = begin
                cisco_ios_decrypt7(spass)
                rescue StandardError
                  spass
              end
        print_good("#{thost}:#{tport} Wireless WPA-PSK Decrypted Password: #{spass}")
        cred[:private_data] = spass
        (cred) if framework.db.active
      end

      #
      # VPN Passwords
      #
    when /^\s*crypto isakmp key ([^\s]+) address ([^\s]+)/i
      spass = Regexp.last_match(1)
      shost = Regexp.last_match(2)

      print_good("#{thost}:#{tport} VPN IPSEC ISAKMP Key '#{spass}' Host '#{shost}'")
      if framework.db.active
        cred = credential_data.dup
        cred[:private_data] = spass
        cred[:private_type] = :nonreplayable_hash
        (cred)
      end

    when /^\s*interface tunnel(\d+)/i
      tuniface = Regexp.last_match(1)

    when /^\s*tunnel key ([^\s]+)/i
      spass = Regexp.last_match(1)
      siface = tuniface

      print_good("#{thost}:#{tport} GRE Tunnel Key #{spass} for Interface Tunnel #{siface}")
      if framework.db.active
        cred = credential_data.dup
        cred[:private_data] = spass
        cred[:private_type] = :nonreplayable_hash
        (cred)
      end

    when /^\s*ip nhrp authentication ([^\s]+)/i
      spass = Regexp.last_match(1)
      siface = tuniface

      print_good("#{thost}:#{tport} NHRP Authentication Key #{spass} for Interface Tunnel #{siface}")
      if framework.db.active
        cred = credential_data.dup
        cred[:private_data] = spass
        cred[:private_type] = :nonreplayable_hash
        (cred)
      end

      #
      # Various authentication secrets
      #
    when /^\s*username ([^\s]+) privilege (\d+) (secret|password) (\d+) ([^\s]+)/i
      user = Regexp.last_match(1)
      priv = Regexp.last_match(2)
      stype = Regexp.last_match(4).to_i
      spass = Regexp.last_match(5)

      if framework.db.active
        cred = credential_data.dup
        cred[:username] = user.to_s
        cred[:private_data] = spass
      else
        cred = {} # throw away
      end

      case stype
      when 5
        print_good("#{thost}:#{tport} Username '#{user}' with MD5 Encrypted Password: #{spass}")
        cred[:jtr_format] = 'md5'
        cred[:private_type] = :nonreplayable_hash
        (cred) if framework.db.active
      when 0
        print_good("#{thost}:#{tport} Username '#{user}' with Password: #{spass}")
        (cred) if framework.db.active
      when 7
        spass = begin
                cisco_ios_decrypt7(spass)
                rescue StandardError
                  spass
              end
        print_good("#{thost}:#{tport} Username '#{user}' with Decrypted Password: #{spass}")
        cred[:private_data] = spass
        (cred) if framework.db.active
      end

      # This regex captures ephones from Cisco Unified Communications Manager Express (CUE) which come in forms like:
      # username "phonefour" password 444444
      # username test password test
      # This is used for the voicemail system
    when /^\s*username "?([\da-z]+)"? password ([^\s]+)/i
      user = Regexp.last_match(1)
      spass = Regexp.last_match(2)
      print_good("#{thost}:#{tport} ePhone Username '#{user}' with Password: #{spass}")
      if framework.db.active
        cred = credential_data.dup
        cred[:username] = user.to_s
        cred[:private_data] = spass
        (cred)
      end

    when /^\s*username ([^\s]+) (secret|password) (\d+) ([^\s]+)/i
      user = Regexp.last_match(1)
      stype = Regexp.last_match(3).to_i
      spass = Regexp.last_match(4)

      if framework.db.active
        cred = credential_data.dup
        cred[:username] = user.to_s
        cred[:private_data] = spass
      else
        cred = {}
      end

      case stype
      when 5
        print_good("#{thost}:#{tport} Username '#{user}' with MD5 Encrypted Password: #{spass}")
        cred[:jtr_format] = 'md5'
        cred[:private_type] = :nonreplayable_hash
        (cred) if framework.db.active
      when 0
        print_good("#{thost}:#{tport} Username '#{user}' with Password: #{spass}")
        (cred) if framework.db.active
      when 7
        spass = begin
                cisco_ios_decrypt7(spass)
                rescue StandardError
                  spass
              end
        print_good("#{thost}:#{tport} Username '#{user}' with Decrypted Password: #{spass}")
        cred[:private_data] = spass
        (cred) if framework.db.active
      end

      # https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucme/command/reference/cme_cr/cme_cr_chapter_010101.html#wp3722577363
    when /^\s*web admin (customer|system) name ([^\s]+) (secret [0|5]|password) ([^\s]+)/i
       = Regexp.last_match(1)
      suser = Regexp.last_match(2)
      stype = Regexp.last_match(3)
      spass = Regexp.last_match(4)

      if framework.db.active
        cred = credential_data.dup
        cred[:username] = suser.to_s
        cred[:private_data] = spass
      else
        cred = {}
      end

      case stype
      when 'secret 5'
        print_good("#{thost}:#{tport} Web Admin Username: #{suser} Type: #{} MD5 Encrypted Password: #{spass}")
        cred[:jtr_format] = 'md5'
        cred[:private_type] = :nonreplayable_hash
        (cred) if framework.db.active
      when 'secret 0', 'password'
        print_good("#{thost}:#{tport} Web Username: #{suser} Type: #{} Password: #{spass}")
        (cred) if framework.db.active
      end

    when /^\s*ppp.*username ([^\s]+) (secret|password) (\d+) ([^\s]+)/i

      suser = Regexp.last_match(1)
      stype = Regexp.last_match(3).to_i
      spass = Regexp.last_match(4)

      if framework.db.active
        cred = credential_data.dup
        cred[:username] = suser.to_s
        cred[:private_data] = spass
      else
        cred = {}
      end

      case stype
      when 5
        print_good("#{thost}:#{tport} PPP Username #{suser} MD5 Encrypted Password: #{spass}")
        cred[:jtr_format] = 'md5'
        cred[:private_type] = :nonreplayable_hash
        (cred) if framework.db.active
      when 0
        print_good("#{thost}:#{tport} PPP Username: #{suser} Password: #{spass}")
        (cred) if framework.db.active
      when 7
        spass = begin
                cisco_ios_decrypt7(spass)
                rescue StandardError
                  spass
              end
        print_good("#{thost}:#{tport} PPP Username: #{suser} Decrypted Password: #{spass}")
        cred[:private_data] = spass
        (cred) if framework.db.active
      end

    when /^\s*ppp chap (secret|password) (\d+) ([^\s]+)/i
      stype = Regexp.last_match(2).to_i
      spass = Regexp.last_match(3)

      if framework.db.active
        cred = credential_data.dup
        cred[:private_data] = spass
      else
        cred = {}
      end

      case stype
      when 5
        print_good("#{thost}:#{tport} PPP CHAP MD5 Encrypted Password: #{spass}")
        cred[:jtr_format] = 'md5'
        cred[:private_type] = :nonreplayable_hash
        (cred) if framework.db.active
      when 0
        print_good("#{thost}:#{tport} Password: #{spass}")
        (cred) if framework.db.active
      when 7
        spass = begin
                cisco_ios_decrypt7(spass)
                rescue StandardError
                  spass
              end
        print_good("#{thost}:#{tport} PPP Decrypted Password: #{spass}")
        cred[:private_data] = spass
        (cred) if framework.db.active
      end
    end
  end
end

#cisco_ios_decrypt7(inp) ⇒ Object 



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# File 'lib/msf/core/auxiliary/cisco.rb', line 12

def cisco_ios_decrypt7(inp)
  xlat = [
    0x64, 0x73, 0x66, 0x64, 0x3b, 0x6b, 0x66, 0x6f,
    0x41, 0x2c, 0x2e, 0x69, 0x79, 0x65, 0x77, 0x72,
    0x6b, 0x6c, 0x64, 0x4a, 0x4b, 0x44, 0x48, 0x53,
    0x55, 0x42
  ]

  return nil if !(inp[0, 2] =~ /\d\d/)

  seed = nil
  clear = ''
  inp.scan(/../).each do |byte|
    if !seed
      seed = byte.to_i
      next
    end
    byte = byte.to_i(16)
    clear << [ byte ^ xlat[seed]].pack('C')
    seed += 1
  end
  clear
end