From d44f8e495bde52c6031a517e87f4eb45d3fb0aa3 Mon Sep 17 00:00:00 2001 From: Wes Date: Tue, 29 Nov 2022 19:00:47 +0000 Subject: [PATCH] Check if connection.state is populated before trying to assess its value --- salt/elasticsearch/files/ingest/zeek.conn | 26 +++++++++++------------ 1 file changed, 13 insertions(+), 13 deletions(-) diff --git a/salt/elasticsearch/files/ingest/zeek.conn b/salt/elasticsearch/files/ingest/zeek.conn index 4cca15896..14689f782 100644 --- a/salt/elasticsearch/files/ingest/zeek.conn +++ b/salt/elasticsearch/files/ingest/zeek.conn @@ -23,19 +23,19 @@ { "rename": { "field": "message2.resp_cc", "target_field": "server.country_code", "ignore_missing": true } }, { "rename": { "field": "message2.sensorname", "target_field": "observer.name", "ignore_missing": true } }, { "script": { "lang": "painless", "source": "ctx.network.bytes = (ctx.client.bytes + ctx.server.bytes)", "ignore_failure": true } }, - { "set": { "if": "ctx.connection.state == 'S0'", "field": "connection.state_description", "value": "Connection attempt seen, no reply" } }, - { "set": { "if": "ctx.connection.state == 'S1'", "field": "connection.state_description", "value": "Connection established, not terminated" } }, - { "set": { "if": "ctx.connection.state == 'S2'", "field": "connection.state_description", "value": "Connection established and close attempt by originator seen (but no reply from responder)" } }, - { "set": { "if": "ctx.connection.state == 'S3'", "field": "connection.state_description", "value": "Connection established and close attempt by responder seen (but no reply from originator)" } }, - { "set": { "if": "ctx.connection.state == 'SF'", "field": "connection.state_description", "value": "Normal SYN/FIN completion" } }, - { "set": { "if": "ctx.connection.state == 'REJ'", "field": "connection.state_description", "value": "Connection attempt rejected" } }, - { "set": { "if": "ctx.connection.state == 'RSTO'", "field": "connection.state_description", "value": "Connection established, originator aborted (sent a RST)" } }, - { "set": { "if": "ctx.connection.state == 'RSTR'", "field": "connection.state_description", "value": "Established, responder aborted" } }, - { "set": { "if": "ctx.connection.state == 'RSTOS0'","field": "connection.state_description", "value": "Originator sent a SYN followed by a RST, we never saw a SYN-ACK from the responder" } }, - { "set": { "if": "ctx.connection.state == 'RSTRH'", "field": "connection.state_description", "value": "Responder sent a SYN ACK followed by a RST, we never saw a SYN from the (purported) originator" } }, - { "set": { "if": "ctx.connection.state == 'SH'", "field": "connection.state_description", "value": "Originator sent a SYN followed by a FIN, we never saw a SYN ACK from the responder (hence the connection was 'half' open)" } }, - { "set": { "if": "ctx.connection.state == 'SHR'", "field": "connection.state_description", "value": "Responder sent a SYN ACK followed by a FIN, we never saw a SYN from the originator" } }, - { "set": { "if": "ctx.connection.state == 'OTH'", "field": "connection.state_description", "value": "No SYN seen, just midstream traffic (a 'partial connection' that was not later closed)" } }, + { "set": { "if": "ctx.connection?.state == 'S0'", "field": "connection.state_description", "value": "Connection attempt seen, no reply" } }, + { "set": { "if": "ctx.connection?.state == 'S1'", "field": "connection.state_description", "value": "Connection established, not terminated" } }, + { "set": { "if": "ctx.connection?.state == 'S2'", "field": "connection.state_description", "value": "Connection established and close attempt by originator seen (but no reply from responder)" } }, + { "set": { "if": "ctx.connection?.state == 'S3'", "field": "connection.state_description", "value": "Connection established and close attempt by responder seen (but no reply from originator)" } }, + { "set": { "if": "ctx.connection?.state == 'SF'", "field": "connection.state_description", "value": "Normal SYN/FIN completion" } }, + { "set": { "if": "ctx.connection?.state == 'REJ'", "field": "connection.state_description", "value": "Connection attempt rejected" } }, + { "set": { "if": "ctx.connection?.state == 'RSTO'", "field": "connection.state_description", "value": "Connection established, originator aborted (sent a RST)" } }, + { "set": { "if": "ctx.connection?.state == 'RSTR'", "field": "connection.state_description", "value": "Established, responder aborted" } }, + { "set": { "if": "ctx.connection?.state == 'RSTOS0'","field": "connection.state_description", "value": "Originator sent a SYN followed by a RST, we never saw a SYN-ACK from the responder" } }, + { "set": { "if": "ctx.connection?.state == 'RSTRH'", "field": "connection.state_description", "value": "Responder sent a SYN ACK followed by a RST, we never saw a SYN from the (purported) originator" } }, + { "set": { "if": "ctx.connection?.state == 'SH'", "field": "connection.state_description", "value": "Originator sent a SYN followed by a FIN, we never saw a SYN ACK from the responder (hence the connection was 'half' open)" } }, + { "set": { "if": "ctx.connection?.state == 'SHR'", "field": "connection.state_description", "value": "Responder sent a SYN ACK followed by a FIN, we never saw a SYN from the originator" } }, + { "set": { "if": "ctx.connection?.state == 'OTH'", "field": "connection.state_description", "value": "No SYN seen, just midstream traffic (a 'partial connection' that was not later closed)" } }, { "pipeline": { "name": "zeek.common" } } ] }