Add support to decode TGS_REQ body

lib/rex/proto/kerberos/model/field/kdc_request_body.rb

@@ -32,7 +32,7 @@ module Rex
             #   @return [Array<Fixnum>] The desired encryption algorithm to be used in the response
             attr_accessor :etype
             # @!attribute enc_auth_data
-            #   @return [EncryptedData] An encoding of the desired authorization-data encrypted
+            #   @return [Rex::Proto::Kerberos::Type::EncryptedData] An encoding of the desired authorization-data encrypted
             attr_accessor :enc_auth_data
 
             def decode(input, type_req)
@@ -137,7 +137,7 @@ module Rex
             end
 
             def decode_enc_auth_data(input)
-              ''
+              Rex::Proto::Kerberos::Model::Type::EncryptedData.decode(input.value[0])
             end
           end
         end

spec/lib/rex/proto/kerberos/model/field/kdc_request_body_spec.rb

@@ -151,9 +151,56 @@ describe Rex::Proto::Kerberos::Model::Field::KdcRequestBody do
     context "when KdcRequestBody from a KRB_TGS_REQ message" do
       it "returns the KdcRequestBody instance" do
         expect(kdc_request_body.decode(sample_tgs_req, tgs_req)).to eq(kdc_request_body)
+      end
 
-        pp kdc_request_body
+      it "decodes options" do
+        kdc_request_body.decode(sample_tgs_req, tgs_req)
+        expect(kdc_request_body.options).to eq(0x50800000)
+      end
 
+      it "leaves cname as nil" do
+        kdc_request_body.decode(sample_tgs_req, tgs_req)
+        expect(kdc_request_body.cname).to be_nil
+      end
+
+      it "decodes realm" do
+        kdc_request_body.decode(sample_tgs_req, tgs_req)
+        expect(kdc_request_body.realm).to eq('DEMO.LOCAL')
+      end
+
+      it "decodes sname" do
+        kdc_request_body.decode(sample_tgs_req, tgs_req)
+        expect(kdc_request_body.sname.name_string).to eq(['krbtgt', 'DEMO.LOCAL'])
+      end
+
+      it "decodes from" do
+        kdc_request_body.decode(sample_tgs_req, tgs_req)
+        expect(kdc_request_body.from.to_s).to eq('1970-01-01 00:00:00 UTC')
+      end
+
+      it "decodes till" do
+        kdc_request_body.decode(sample_tgs_req, tgs_req)
+        expect(kdc_request_body.till.to_s).to eq('1970-01-01 00:00:00 UTC')
+      end
+
+      it "decodes rtime" do
+        kdc_request_body.decode(sample_tgs_req, tgs_req)
+        expect(kdc_request_body.rtime.to_s).to eq('1970-01-01 00:00:00 UTC')
+      end
+
+      it "decodes nonce" do
+        kdc_request_body.decode(sample_tgs_req, tgs_req)
+        expect(kdc_request_body.nonce).to eq(2053110444)
+      end
+
+      it "decodes etype" do
+        kdc_request_body.decode(sample_tgs_req, tgs_req)
+        expect(kdc_request_body.etype).to eq([23])
+      end
+
+      it "decodes enc_auth_data" do
+        kdc_request_body.decode(sample_tgs_req, tgs_req)
+        expect(kdc_request_body.enc_auth_data.cipher.length).to eq(643)
       end
     end
   end