Class: Rex::Proto::Kerberos::Model::Ticket

Inherits:
Element
  • Object
show all
Defined in:
lib/rex/proto/kerberos/model/ticket.rb

Overview

This class provides a representation of a Kerberos ticket that helps a client authenticate to a service.

Constant Summary

Constants included from Rex::Proto::Kerberos::Model

AP_REP, AP_REQ, AS_REP, AS_REQ, AUTHENTICATOR, ENC_KRB_CRED_PART, KRB_CRED, KRB_ERROR, TGS_REP, TGS_REQ, TICKET, VERSION

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Element

attr_accessor, attributes, #attributes, decode, #initialize

Constructor Details

This class inherits a constructor from Rex::Proto::Kerberos::Model::Element

Instance Attribute Details

#enc_part ⇒ Rex::Proto::Kerberos::Model::EncryptedData

Returns The encrypted part of the ticket.

Returns:



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# File 'lib/rex/proto/kerberos/model/ticket.rb', line 21

def enc_part
  @enc_part
end

#realm ⇒ String

Returns The realm that issued the ticket.

Returns:

  • (String) —

    The realm that issued the ticket



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# File 'lib/rex/proto/kerberos/model/ticket.rb', line 15

def realm
  @realm
end

#sname ⇒ Rex::Proto::Kerberos::Model::PrincipalName

Returns The name part of the server’s identity.

Returns:



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# File 'lib/rex/proto/kerberos/model/ticket.rb', line 18

def sname
  @sname
end

#tkt_vno ⇒ Integer

Returns The ticket version number.

Returns:

  • (Integer) —

    The ticket version number



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# File 'lib/rex/proto/kerberos/model/ticket.rb', line 12

def tkt_vno
  @tkt_vno
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/rex/proto/kerberos/model/ticket.rb', line 23

def ==(other)
  tkt_vno == other.tkt_vno &&
    realm == other.realm &&
    sname == other.sname &&
    enc_part == other.enc_part
end

#decode(input) ⇒ self

Decodes the Rex::Proto::Kerberos::Model::KrbError from an input

Parameters:

  • input (String, OpenSSL::ASN1::ASN1Data) —

    the input to decode from

Returns:

  • (self) —

    if decoding succeeds

Raises:



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# File 'lib/rex/proto/kerberos/model/ticket.rb', line 35

def decode(input)
  case input
  when String
    decode_string(input)
  when OpenSSL::ASN1::ASN1Data
    decode_asn1(input)
  else
    raise ::Rex::Proto::Kerberos::Model::Error::KerberosDecodingError, 'Failed to decode Ticket, invalid input'
  end

  self
end

#encode ⇒ Object 



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# File 'lib/rex/proto/kerberos/model/ticket.rb', line 48

def encode
  elems = []
  elems << OpenSSL::ASN1::ASN1Data.new([encode_tkt_vno], 0, :CONTEXT_SPECIFIC)
  elems << OpenSSL::ASN1::ASN1Data.new([encode_realm], 1, :CONTEXT_SPECIFIC)
  elems << OpenSSL::ASN1::ASN1Data.new([encode_sname], 2, :CONTEXT_SPECIFIC)
  elems << OpenSSL::ASN1::ASN1Data.new([encode_enc_part], 3, :CONTEXT_SPECIFIC)
  seq = OpenSSL::ASN1::Sequence.new(elems)

  seq_asn1 = OpenSSL::ASN1::ASN1Data.new([seq], TICKET, :APPLICATION)

  seq_asn1.to_der
end