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# -*- coding: binary -*-
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module Msf
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  ###
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  #
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  # This module provides methods for working with F5 equipment
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  #
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  ###
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  module Auxiliary::F5
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    include Msf::Auxiliary::Report
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    def f5_config_eater(thost, tport, config, store = true)
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      credential_data = {
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        address: thost,
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        port: tport,
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        protocol: 'tcp',
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        workspace_id: myworkspace_id,
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        origin_type: :service,
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        private_type: :nonreplayable_hash,
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        # https://support.f5.com/csp/article/K65081001
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        jtr_format: 'sha512,crypt', # default on the devices 11.4.0+
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        service_name: '',
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        module_fullname: fullname,
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        status: Metasploit::Model::Login::Status::UNTRIED
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      }
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      # Default SNMP to UDP
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      if tport == 161
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        credential_data[:protocol] = 'udp'
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      end
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      if store
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        store_loot('f5.config', 'text/plain', thost, config.strip, 'config.txt', 'F5 Configuration')
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      end
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      host_info = {
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        host: thost,
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        os_name: 'F5'
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      }
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      report_host(host_info)
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      # generated by: tmsh list auth user
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      # auth user admin {
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      #    description "Admin User"
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      # encrypted-password $6$4FAWSZLi$VeSaxPM2/D1JOhMRN/GMkt5wHcbIVKaIC2g765ZD0VA9ZEEm8iyK40/ncGrZIGyJyJF4ivkScNZ59HWAIKMML/
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      #    partition Common
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      #    partition-access {
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      #        all-partitions {
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      #            role admin
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      #        }
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      #    }
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      #    shell none
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      # }
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      config.scan(%r{auth user ([^ ]+) {\s*description "?([^\n"]+)"?\n\s*encrypted-password ([$\w\+\./]+)\n[\w\s\-{}]+\s+shell (tmsh|bash|none)\n}}mi).each do |result|
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        username = result[0].strip
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        description = result[1].strip
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        hash = result[2].strip
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        shell = result[3].strip
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        cred = credential_data.dup
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        cred[:username] = username
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        cred[:jtr_format] = Metasploit::Framework::Hashes.identify_hash(hash)
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        cred[:private_data] = hash
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        create_credential_and_login(cred)
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        print_good("#{thost}:#{tport} Username '#{username}' with description '#{description}' and shell #{shell} with hash #{hash}")
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      end
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      # generated by: tmsh list sys snmp communities
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      # sys snmp {
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      #    communities {
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      #        comm-public {
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      #            community-name public
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      #            source default
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      #        }
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      #        ro {
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      #            community-name rocommunity
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      #        }
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      #        rw {
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      #            access rw
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      #            community-name rwcommunity
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      #        }
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      #    }
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      # }
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      config.scan(/(?:(access rw)?\n)\s+community-name (\w+)/).each do |result|
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        if result[0].nil?
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          access = 'RO'
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        else
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          access = 'RW'
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        end
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        cred = credential_data.dup
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        cred[:port] = 161
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        cred[:protocol] = 'udp'
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        cred[:service_name] = 'snmp'
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        cred[:jtr_format] = ''
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        cred[:private_data] = result[1].strip
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        cred[:private_type] = :password
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        cred[:access_level] = access
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        create_credential_and_login(cred)
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        print_good("#{thost}:#{tport} SNMP Community '#{result[1].strip}' with #{access} access")
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      end
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      # generated by: cat /config/bigip.conf
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      # cm device /Common/f5bigip.ragegroup.com {
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      #    active-modules { "BIG-IP, VE Trial|VTFAAAA-AAAAAAA|Rate Shaping|External Interface and Network HSM, VE|SDN Services, VE|SSL, Forward Proxy, VE|BIG-IP VE, Multicast Routing|APM, Limited|SSL, VE|DNS (1K QPS), VE|Routing Bundle, VE|ASM, VE|Crytpo Offload, VE, Tier 1 (25M - 200M)|Max Compression, VE|AFM, VE|DNSSEC|Anti-Virus Checks|Base Endpoint Security Checks|Firewall Checks|Network Access|Secure Virtual Keyboard|APM, Web Application|Machine Certificate Checks|Protected Workspace|Remote Desktop|App Tunnel|VE, Carrier Grade NAT (AFM ONLY)|PSM, VE" }
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      #    base-mac 00:11:11:a1:a1:a1
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      #    build 0.0.9
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      #    cert /Common/dtdi.crt
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      #    chassis-id 164aaf79-aace-3494-1237671446c7
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      #    configsync-ip 10.10.10.222
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      #    edition "Point Release 2"
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      #    hostname f5bigip.home.com
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      #    key /Common/dtdi.key
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      #    management-ip 1.1.1.1
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      #    marketing-name "BIG-IP Virtual Edition"
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      #    platform-id Z100
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      #    product BIG-IP
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      #    self-device true
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      #    time-zone America/Los_Angeles
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      #    version 15.1.0.2
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      # }
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      if /^cm device (?<content>.+)}$/m =~ config
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        if /hostname (?<hostname>[\w\.-]+)$/i =~ content
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          print_good("#{thost}:#{tport} Hostname: #{hostname}")
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          host_info[:name] = hostname
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          report_host(host_info)
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        end
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        if /base-mac (?<mac>[\d:a-f]+)$/i =~ content
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          print_good("#{thost}:#{tport} MAC Address: #{mac}")
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          host_info[:mac] = mac
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          report_host(host_info)
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        end
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        if /management-ip (?<ip>[\d\.]+)$/ =~ content
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          print_good("#{thost}:#{tport} Management IP: #{ip}")
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        end
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        if /product (?<product>[\w-]+)$/i =~ content
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          print_good("#{thost}:#{tport} Product #{product}")
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          host_info[:os_name] = "F5 #{product}"
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          report_host(host_info)
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        end
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        if /version (?<version>[\d\.]+)$/i =~ content
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          print_good("#{thost}:#{tport} OS Version: #{version}")
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          host_info[:os_flavor] = version
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          report_host(host_info)
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        end
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      end
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      # generated by: cat /config/bigip.conf
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      # sys file ssl-key /Common/f5_api_com.key {
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      #    cache-path /config/filestore/files_d/Common_d/certificate_key_d/:Common:f5_api_com.key_63086_1
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      #    passphrase $M$iE$cIdy72xi7Xbk3kazSrpdfscd+oD1pdsXJbwhvhMPiss4Iw0RKIJQS/CuSReZl/+kseKpPCNpBWNWOOaBCwlQ0v4sl7ZUkxCymh5pfFNAjhc=
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      #    revision 1
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      #    source-path file:///config/ssl/ssl.key/f5_api_com.key
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      # }
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      config.scan(%r{^sys file ssl-key (.+) \{.+passphrase ([$\w/\+=]+).+source-path file://([\w/\.]+)}mi).each do |result|
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        username = result[0].strip # its not really a username, but we'll leave it as is since its a common name
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        hash = result[1].strip
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        file = result[2].strip
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        cred = credential_data.dup
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        cred[:username] = username
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        cred[:jtr_format] = Metasploit::Framework::Hashes.identify_hash(hash)
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        cred[:private_data] = hash
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        create_credential_and_login(cred)
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        print_good("#{thost}:#{tport} SSL Key '#{username}' and hash #{hash} for #{file}")
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      end
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      # generated by tmsh show sys crypto master-key
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      # --------------------------------------------------------------------------------
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      # Sys::Master-Key
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      # --------------------------------------------------------------------------------
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      # master-key hash  <EFt+B7/aTWwPwLoMd8KLYW4JB3K5B6301k4pGsoWnZEb2yUbvEJgNU3FcLHo0S4QvdrwVcKrNtHLzebC7HizHQ==>
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      # previous hash    <EFt+B7/aTWwPwLoMd8KLYW4JB3K5B6301k4pGsoWnZEb2yUbvEJgNU3FcLHo0S4QvdrwVcKrNtHLzebC7HizHQ==>
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      config.scan(%r{(master-key|previous) hash\s+<([\w\+/=]+)>}i). each do |result|
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        key_type = result[0].strip
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        key = result[1].strip
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        cred = credential_data.dup
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        cred[:username] = "F5 #{key_type} hash"
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        cred[:jtr_format] = Metasploit::Framework::Hashes.identify_hash(key) # will come bacy empty
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        cred[:private_data] = key
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        create_credential_and_login(cred)
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        print_good("#{thost}:#{tport} F5 #{key_type} hash #{key}")
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      end
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    end
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  end
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end
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