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

7
class MetasploitModule < Msf::Auxiliary
8
  include Msf::Auxiliary::Report
9
  include Msf::Auxiliary::UDPScanner
10

11
  def initialize
12
    super(
13
      'Name'        => 'IPMI 2.0 Cipher Zero Authentication Bypass Scanner',
14
      'Description' => %q|
15
        This module identifies IPMI 2.0-compatible systems that are vulnerable
16
        to an authentication bypass vulnerability through the use of cipher
17
        zero.
18
        |,
19
      'Author'      => [ 'Dan Farmer <zen[at]fish2.com>', 'hdm' ],
20
      'License'     => MSF_LICENSE,
21
      'References'  =>
22
        [
23
          ['CVE', '2013-4782'],
24
          ['URL', 'http://fish2.com/ipmi/cipherzero.html'],
25
          ['OSVDB', '93038'],
26
          ['OSVDB', '93039'],
27
          ['OSVDB', '93040'],
28

29
        ],
30
      'DisclosureDate' => 'Jun 20 2013'
31
    )
32

33
    register_options(
34
    [
35
      Opt::RPORT(623)
36
    ])
37

38
  end
39

40
  def scanner_prescan(batch)
41
    print_status("Sending IPMI requests to #{batch[0]}->#{batch[-1]} (#{batch.length} hosts)")
42
    @res = {}
43
  end
44

45
  def scan_host(ip)
46
    console_session_id = Rex::Text.rand_text(4)
47
    scanner_send(
48
      Rex::Proto::IPMI::Utils.create_ipmi_session_open_cipher_zero_request(console_session_id),
49
      ip, datastore['RPORT']
50
    )
51
  end
52

53
  def scanner_process(data, shost, sport)
54
    info = Rex::Proto::IPMI::Open_Session_Reply.new.read(data)#  rescue nil
55
    return unless info && info.session_payload_type == Rex::Proto::IPMI::PAYLOAD_RMCPPLUSOPEN_REP
56

57
    # Ignore duplicate replies
58
    return if @res[shost]
59

60
    @res[shost] ||= info
61

62
    if info.error_code == 0
63
      print_good("#{shost}:#{sport} - IPMI - VULNERABLE: Accepted a session open request for cipher zero")
64
      report_vuln(
65
        :host  => shost,
66
        :port  => datastore['RPORT'].to_i,
67
        :proto => 'udp',
68
        :sname => 'ipmi',
69
        :name  => 'IPMI 2.0 RAKP Cipher Zero Authentication Bypass',
70
        :info  => "Accepted a session open request for cipher zero",
71
        :refs  => self.references
72
      )
73
    else
74
      vprint_status("#{shost}:#{sport} - IPMI - NOT VULNERABLE: Rejected cipher zero with error code #{info.error_code}")
75
    end
76
  end
77
end
78

79