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


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# 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_probeObject


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# 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


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# File 'lib/rex/proto/ipmi/utils.rb', line 88

def self.create_ipmi_rakp_1(bmc_session_id, console_random_id, username)
  [
    0x06, 0x00, 0xff, 0x07,  # RMCP Header
    0x06,                    # RMCP+ Authentication Type
    PAYLOAD_RAKP1,           # Payload Type
    0x00, 0x00, 
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0x00, 
    0x00, 0x00, 0x00, 0x00
  ].pack("C*") +
  bmc_session_id +
  console_random_id +
  [
    0x14, 0x00, 0x00, 
    username.length
  ].pack("C*") + 
  username
end

.create_ipmi_session_open_cipher_zero_request(console_session_id) ⇒ Object

open rmcpplus_request with cipherzero


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# 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


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# 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


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# File 'lib/rex/proto/ipmi/utils.rb', line 107

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


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# File 'lib/rex/proto/ipmi/utils.rb', line 118

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