Class: Watobo::NTLM::Message::Type2

Inherits:
Watobo::NTLM::Message show all
Defined in:
lib/watobo/utils/ntlm.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Watobo::NTLM::Message

#data_edge, #data_size, decode64, #decode64, #deflag, #dump_flags, #encode64, #has_flag?, #head_size, #security_buffers, #serialize, #set_flag, #size

Methods inherited from FieldSet

#[], #[]=, #disable, #enable, #initialize, int16LE, int32LE, int64LE, names, opts, prototypes, security_buffer, #serialize, #size, string, types

Constructor Details

This class inherits a constructor from Watobo::NTLM::FieldSet

Class Method Details

.parse(str) ⇒ Type2

Parse a Type 2 packet

Parameters:

  • str (String) —

    A string containing Type 2 data

Returns:



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# File 'lib/watobo/utils/ntlm.rb', line 708

def parse(str)
  t = new
  t.parse(str)
  t
end

Instance Method Details

#challenge ⇒ Int64

Returns:

  • (Int64) 


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# File 'lib/watobo/utils/ntlm.rb', line 699

int64LE           :challenge,    {:value => 0}

#challenge= ⇒ Int64

Returns:

  • (Int64) 


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# File 'lib/watobo/utils/ntlm.rb', line 699

int64LE           :challenge,    {:value => 0}

#context ⇒ Int64

Returns:

  • (Int64) 


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# File 'lib/watobo/utils/ntlm.rb', line 700

int64LE           :context,      {:value => 0, :active => false}

#context= ⇒ Int64

Returns:

  • (Int64) 


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# File 'lib/watobo/utils/ntlm.rb', line 700

int64LE           :context,      {:value => 0, :active => false}

#flag ⇒ Int32LE

Returns:



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# File 'lib/watobo/utils/ntlm.rb', line 698

int32LE       :flag,         {:value => DEFAULT_FLAGS[:TYPE2]}

#flag= ⇒ Int32LE

Returns:



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# File 'lib/watobo/utils/ntlm.rb', line 698

int32LE       :flag,         {:value => DEFAULT_FLAGS[:TYPE2]}

#padding ⇒ String

Returns:



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# File 'lib/watobo/utils/ntlm.rb', line 702

string        :padding,   {:size => 0, :value => "", :active => false }

#padding= ⇒ String

Returns:



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# File 'lib/watobo/utils/ntlm.rb', line 702

string        :padding,   {:size => 0, :value => "", :active => false }

#response(arg, opt = {}) ⇒ Type3

Note:

An empty :domain option authenticates to the local machine.

Note:

The :use_default_target has presidence over the :domain option

Generates a Type 3 response based on the Type 2 Information

Parameters:

  • arg (Hash) —

    a customizable set of options

  • opt (Hash) (defaults to: {}) —

    a customizable set of options

Options Hash (arg):

  • :username (String) —

    The username to authenticate with

  • :password (String) —

    The user’s password

  • :domain (String) — default: '' —

    The domain to authenticate to

Options Hash (opt):

  • :workstation (String) — default: Socket.gethostname —

    The name of the calling workstation

  • :use_default_target (Boolean) — default: False —

    Use the domain supplied by the server in the Type 2 packet

Returns:



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# File 'lib/watobo/utils/ntlm.rb', line 738

def response(arg, opt = {})
  usr = arg[:user]
  pwd = arg[:password]
  domain = arg[:domain] ? arg[:domain] : ""
  if usr.nil? or pwd.nil?
    raise ArgumentError, "user and password have to be supplied"
  end

  if opt[:workstation]
    ws = opt[:workstation]
  else
    ws = Socket.gethostname
  end

  if opt[:client_challenge]
    cc  = opt[:client_challenge]
  else
    cc = rand(MAX64)
  end
  cc = NTLM::pack_int64le(cc) if cc.is_a?(Integer)
  opt[:client_challenge] = cc

  if has_flag?(:OEM) and opt[:unicode]
    usr = NTLM::EncodeUtil.decode_utf16le(usr)
    pwd = NTLM::EncodeUtil.decode_utf16le(pwd)
    ws  = NTLM::EncodeUtil.decode_utf16le(ws)
    domain = NTLM::EncodeUtil.decode_utf16le(domain)
    opt[:unicode] = false
  end

  if has_flag?(:UNICODE) and !opt[:unicode]
    usr = NTLM::EncodeUtil.encode_utf16le(usr)
    pwd = NTLM::EncodeUtil.encode_utf16le(pwd)
    ws  = NTLM::EncodeUtil.encode_utf16le(ws)
    domain = NTLM::EncodeUtil.encode_utf16le(domain)
    opt[:unicode] = true
  end

  if opt[:use_default_target]
    domain = self.target_name
  end

  ti = self.target_info

  chal = self[:challenge].serialize

  if opt[:ntlmv2]
    ar = {:ntlmv2_hash => NTLM::ntlmv2_hash(usr, pwd, domain, opt), :challenge => chal, :target_info => ti}
    lm_res = NTLM::lmv2_response(ar, opt)
    ntlm_res = NTLM::ntlmv2_response(ar, opt)
  elsif has_flag?(:NTLM2_KEY)
    ar = {:ntlm_hash => NTLM::ntlm_hash(pwd, opt), :challenge => chal}
    lm_res, ntlm_res = NTLM::ntlm2_session(ar, opt)
  else
    lm_res = NTLM::lm_response(pwd, chal)
    ntlm_res = NTLM::ntlm_response(pwd, chal)
  end

  Type3.create({
    :lm_response => lm_res,
    :ntlm_response => ntlm_res,
    :domain => domain,
    :user => usr,
    :workstation => ws,
    :flag => self.flag
  })
end

#sign ⇒ String

Returns:



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# File 'lib/watobo/utils/ntlm.rb', line 695

string        :sign,         {:size => 8, :value => SSP_SIGN}

#sign= ⇒ String

Returns:



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# File 'lib/watobo/utils/ntlm.rb', line 695

string        :sign,         {:size => 8, :value => SSP_SIGN}

#target_info ⇒ SecurityBuffer

Returns:



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# File 'lib/watobo/utils/ntlm.rb', line 701

security_buffer   :target_info,  {:value => "", :active => false}

#target_info= ⇒ SecurityBuffer

Returns:



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# File 'lib/watobo/utils/ntlm.rb', line 701

security_buffer   :target_info,  {:value => "", :active => false}

#target_name ⇒ SecurityBuffer

Returns:



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# File 'lib/watobo/utils/ntlm.rb', line 697

security_buffer   :target_name,  {:size => 0, :value => ""}

#target_name= ⇒ SecurityBuffer

Returns:



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# File 'lib/watobo/utils/ntlm.rb', line 697

security_buffer   :target_name,  {:size => 0, :value => ""}

#type ⇒ Int32LE

Returns:



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# File 'lib/watobo/utils/ntlm.rb', line 696

int32LE       :type,      {:value => 2}

#type= ⇒ Int32LE

Returns:



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# File 'lib/watobo/utils/ntlm.rb', line 696

int32LE       :type,      {:value => 2}