detect: add test for ldap.request.operation

Ticket: #7453

tests/detect-ldap-operation/README.md

@@ -0,0 +1,3 @@
+Test ldap.request.operation and ldap.response.operation keywords.
+
+PCAP from ../ldap-search/ldap.pcap

tests/detect-ldap-operation/eve.json

@@ -0,0 +1,7 @@
+{"timestamp":"2024-05-28T09:39:37.034492+0000","flow_id":420580139985346,"pcap_cnt":7,"event_type":"alert","src_ip":"1.1.1.1","src_port":5555,"dest_ip":"2.2.2.2","dest_port":389,"proto":"TCP","pkt_src":"wire/pcap","tx_id":0,"alert":{"action":"allowed","gid":1,"signature_id":1,"rev":0,"signature":"Test LDAP search request number argument","category":"","severity":3},"ldap":{"request":{"message_id":2,"operation":"search_request","search_request":{"base_object":"dc=example,dc=com","scope":2,"deref_alias":0,"size_limit":1000,"time_limit":30,"types_only":false,"attributes":["*","+"]}},"responses":[{"operation":"search_result_entry","search_result_entry":{"base_object":"dc=example,dc=com","attributes":[{"type":"objectClass","values":["top","domain"]},{"type":"dc","values":["example"]}]}}]},"app_proto":"ldap","direction":"to_server","flow":{"pkts_toserver":4,"pkts_toclient":3,"bytes_toserver":304,"bytes_toclient":237,"start":"2024-05-28T09:39:37.032387+0000","src_ip":"1.1.1.1","dest_ip":"2.2.2.2","src_port":5555,"dest_port":389}}
+{"timestamp":"2024-05-28T09:39:37.034492+0000","flow_id":420580139985346,"pcap_cnt":7,"event_type":"alert","src_ip":"1.1.1.1","src_port":5555,"dest_ip":"2.2.2.2","dest_port":389,"proto":"TCP","pkt_src":"wire/pcap","tx_id":0,"alert":{"action":"allowed","gid":1,"signature_id":2,"rev":0,"signature":"Test LDAP search request str argument","category":"","severity":3},"ldap":{"request":{"message_id":2,"operation":"search_request","search_request":{"base_object":"dc=example,dc=com","scope":2,"deref_alias":0,"size_limit":1000,"time_limit":30,"types_only":false,"attributes":["*","+"]}},"responses":[{"operation":"search_result_entry","search_result_entry":{"base_object":"dc=example,dc=com","attributes":[{"type":"objectClass","values":["top","domain"]},{"type":"dc","values":["example"]}]}}]},"app_proto":"ldap","direction":"to_server","flow":{"pkts_toserver":4,"pkts_toclient":3,"bytes_toserver":304,"bytes_toclient":237,"start":"2024-05-28T09:39:37.032387+0000","src_ip":"1.1.1.1","dest_ip":"2.2.2.2","src_port":5555,"dest_port":389}}
+{"timestamp":"2024-05-28T09:39:37.034670+0000","flow_id":420580139985346,"pcap_cnt":8,"event_type":"alert","src_ip":"2.2.2.2","src_port":389,"dest_ip":"1.1.1.1","dest_port":5555,"proto":"TCP","pkt_src":"wire/pcap","tx_id":0,"alert":{"action":"allowed","gid":1,"signature_id":3,"rev":0,"signature":"Test LDAP search result entry","category":"","severity":3},"ldap":{"request":{"message_id":2,"operation":"search_request","search_request":{"base_object":"dc=example,dc=com","scope":2,"deref_alias":0,"size_limit":1000,"time_limit":30,"types_only":false,"attributes":["*","+"]}},"responses":[{"operation":"search_result_entry","search_result_entry":{"base_object":"dc=example,dc=com","attributes":[{"type":"objectClass","values":["top","domain"]},{"type":"dc","values":["example"]}]}}]},"app_proto":"ldap","direction":"to_client","flow":{"pkts_toserver":4,"pkts_toclient":4,"bytes_toserver":304,"bytes_toclient":305,"start":"2024-05-28T09:39:37.032387+0000","src_ip":"1.1.1.1","dest_ip":"2.2.2.2","src_port":5555,"dest_port":389}}
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tests/detect-ldap-operation/test.rules

@@ -0,0 +1,4 @@
+alert tcp any any -> any any (msg:"Test LDAP search request number argument"; ldap.request.operation:3; sid:1;)
+alert tcp any any -> any any (msg:"Test LDAP search request str argument"; ldap.request.operation:search_request; sid:2;)
+alert tcp any any -> any any (msg:"Test LDAP search result entry"; ldap.responses.operation:search_result_entry; sid:3;)
+alert tcp any any -> any any (msg:"Test LDAP search result done"; ldap.responses.operation:search_result_done; sid:4;)

tests/detect-ldap-operation/test.yaml

@@ -0,0 +1,36 @@
+requires:
+  min-version: 8
+
+pcap: ../ldap-search/ldap.pcap
+
+args:
+  - -k none
+
+checks:
+  - filter:
+      count: 1
+      match:
+        event_type: alert
+        pcap_cnt: 7
+        ldap.request.operation: search_request
+        alert.signature_id: 1
+  - filter:
+      count: 1
+      match:
+        event_type: alert
+        pcap_cnt: 7
+        ldap.request.operation: search_request
+        alert.signature_id: 2
+  - filter:
+      count: 1
+      match:
+        event_type: alert
+        pcap_cnt: 8
+        ldap.responses[0].operation: search_result_entry
+        alert.signature_id: 3
+  - filter:
+      count: 1
+      match:
+        event_type: alert
+        ldap.responses[1].operation: search_result_done
+        alert.signature_id: 4