Class: Rex::Proto::IPMI::Utils

Inherits:
Object
  • Object
show all
Defined in:
lib/rex/proto/ipmi/utils.rb

Class Method Summary collapse

Class Method Details

.checksum(data) ⇒ Object 



8
9
10
11
12
13
 
# File 'lib/rex/proto/ipmi/utils.rb', line 8

def self.checksum(data)
  sum = 0
  data.unpack("C*").each {|c| sum += c }
  sum = ~sum + 1
  sum & 0xff
end

.create_ipmi_getchannel_probe ⇒ Object 



15
16
17
18
19
20
21
22
 
# File 'lib/rex/proto/ipmi/utils.rb', line 15

def self.create_ipmi_getchannel_probe
  [   # Get Channel Authentication Capabilities
    0x06, 0x00, 0xff, 0x07, # RMCP Header
    0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x09, 0x20, 0x18,
    0xc8, 0x81, 0x00, 0x38, 0x8e, 0x04, 0xb5
  ].pack("C*")
end

.create_ipmi_rakp_1(bmc_session_id, console_random_id, username) ⇒ Object 



88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
 
# File 'lib/rex/proto/ipmi/utils.rb', line 88

def self.create_ipmi_rakp_1(bmc_session_id, console_random_id, username)
  head = [
    0x06, 0x00, 0xff, 0x07,  # RMCP Header
    0x06,                    # RMCP+ Authentication Type
    PAYLOAD_RAKP1,           # Payload Type
    0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00,
  ].pack("C*")

  data =
    [0x00, 0x00, 0x00, 0x00].pack("C*") +
    bmc_session_id +
    console_random_id +
    [
      0x14, 0x00, 0x00,
      username.length
    ].pack("C*") +
    username

  head + [data.length].pack('v') + data
end

.create_ipmi_session_open_cipher_zero_request(console_session_id) ⇒ Object

open rmcpplus_request with cipherzero



57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
 
# File 'lib/rex/proto/ipmi/utils.rb', line 57

def self.create_ipmi_session_open_cipher_zero_request(console_session_id)
  head = [
    0x06, 0x00, 0xff, 0x07,   # RMCP Header
    0x06,                     # RMCP+ Authentication Type
    PAYLOAD_RMCPPLUSOPEN_REQ, # Payload Type
    0x00, 0x00, 0x00, 0x00,   # Session ID
    0x00, 0x00, 0x00, 0x00    # Sequence Number
  ].pack("C*")

  data =
  [   # Maximum access
    0x00, 0x00,
    # Reserved
    0x00, 0x00
  ].pack("C*") +
  console_session_id +
  [
    0x00, 0x00, 0x00, 0x08,
    # Cipher 0
    0x00, 0x00, 0x00, 0x00,
    0x01, 0x00, 0x00, 0x08,
    # Cipher 0
    0x00, 0x00, 0x00, 0x00,
    0x02, 0x00, 0x00, 0x08,
    # No Encryption
    0x00, 0x00, 0x00, 0x00
  ].pack("C*")

  head + [data.length].pack('v') + data
end

.create_ipmi_session_open_request(console_session_id) ⇒ Object

open rmcpplus_request



25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
 
# File 'lib/rex/proto/ipmi/utils.rb', line 25

def self.create_ipmi_session_open_request(console_session_id)
  head = [
    0x06, 0x00, 0xff, 0x07,   # RMCP Header
    0x06,                     # RMCP+ Authentication Type
    PAYLOAD_RMCPPLUSOPEN_REQ, # Payload Type
    0x00, 0x00, 0x00, 0x00,   # Session ID
    0x00, 0x00, 0x00, 0x00    # Sequence Number
  ].pack("C*")

  data =
  [   # Maximum access
    0x00, 0x00,
    # Reserved
    0x00, 0x00
  ].pack("C*") +
  console_session_id +
  [
    0x00, 0x00, 0x00, 0x08,
    0x01, 0x00, 0x00, 0x00,
    0x01, 0x00, 0x00, 0x08,
    # HMAC-SHA1
    0x01, 0x00, 0x00, 0x00,
    0x02, 0x00, 0x00, 0x08,
    # AES Encryption
    0x01, 0x00, 0x00, 0x00
  ].pack("C*")

  head + [data.length].pack('v') + data
end

.create_rakp_hmac_sha1_salt(con_sid, bmc_sid, con_rid, bmc_rid, bmc_gid, auth_level, username) ⇒ Object 



111
112
113
114
115
116
117
118
119
120
 
# File 'lib/rex/proto/ipmi/utils.rb', line 111

def self.create_rakp_hmac_sha1_salt(con_sid, bmc_sid, con_rid, bmc_rid, bmc_gid, auth_level, username)
  con_sid +
  bmc_sid +
  con_rid +
  bmc_rid +
  bmc_gid +
  [ auth_level ].pack("C") +
  [ username.length ].pack("C") +
  username
end

.verify_rakp_hmac_sha1(salt, hash, password) ⇒ Object 



122
123
124
 
# File 'lib/rex/proto/ipmi/utils.rb', line 122

def self.verify_rakp_hmac_sha1(salt, hash, password)
  OpenSSL::HMAC.digest('sha1', password, salt) == hash
end