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fix(exim-logs): make set_id optional in failed-auth pattern #1835

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fix(exim-logs): make set_id optional in failed-auth pattern #1835

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3ed686f
fix(exim-logs): make set_id optional in failed-auth pattern
dvlinuxx-max Jun 24, 2026
e02258a
test(exim-logs): cover failed-auth line without set_id
dvlinuxx-max Jul 8, 2026
bcb2d8b
Merge branch 'master' into fix/exim-optional-set-id
dvlinuxx-max Jul 12, 2026
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1 change: 1 addition & 0 deletions .tests/exim-logs/exim-logs.log
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Original file line number Diff line number Diff line change
Expand Up @@ -10,3 +10,4 @@
2023-05-30 06:10:12 login authenticator failed for no-helo.example.org [192.0.2.11]:5432: 535 Incorrect authentication data (set_id=user)
2023-05-30 06:10:13.345 login authenticator failed for millis.example.org [192.0.2.12]:5432: 535 Incorrect authentication data (set_id=user)
2023-05-30 06:10:14 login authenticator failed for no-port.example.org [192.0.2.13]: 535 Incorrect authentication data (set_id=user)
2023-05-30 06:10:15 login authenticator failed for (U8kjDR) [192.0.2.14]: 535 Incorrect authentication data
46 changes: 42 additions & 4 deletions .tests/exim-logs/parser.assert
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
len(results) == 4
len(results["s00-raw"]["crowdsecurity/non-syslog"]) == 12
len(results["s00-raw"]["crowdsecurity/non-syslog"]) == 13
results["s00-raw"]["crowdsecurity/non-syslog"][0].Success == true
results["s00-raw"]["crowdsecurity/non-syslog"][0].Evt.Parsed["message"] == "2022-06-29 16:04:19 dovecot_login authenticator failed for ([1.2.3.5]) [1.2.3.4]:55379: 535 Incorrect authentication data (set_id=abuse@test.com)"
results["s00-raw"]["crowdsecurity/non-syslog"][0].Evt.Parsed["program"] == "exim"
Expand Down Expand Up @@ -60,7 +60,12 @@ results["s00-raw"]["crowdsecurity/non-syslog"][11].Evt.Parsed["message"] == "202
results["s00-raw"]["crowdsecurity/non-syslog"][11].Evt.Parsed["program"] == "exim"
results["s00-raw"]["crowdsecurity/non-syslog"][11].Evt.Meta["datasource_path"] == "exim-logs.log"
results["s00-raw"]["crowdsecurity/non-syslog"][11].Evt.Meta["datasource_type"] == "file"
len(results["s00-raw"]["crowdsecurity/syslog-logs"]) == 12
results["s00-raw"]["crowdsecurity/non-syslog"][12].Success == true
results["s00-raw"]["crowdsecurity/non-syslog"][12].Evt.Parsed["message"] == "2023-05-30 06:10:15 login authenticator failed for (U8kjDR) [192.0.2.14]: 535 Incorrect authentication data"
results["s00-raw"]["crowdsecurity/non-syslog"][12].Evt.Parsed["program"] == "exim"
results["s00-raw"]["crowdsecurity/non-syslog"][12].Evt.Meta["datasource_path"] == "exim-logs.log"
results["s00-raw"]["crowdsecurity/non-syslog"][12].Evt.Meta["datasource_type"] == "file"
len(results["s00-raw"]["crowdsecurity/syslog-logs"]) == 13
results["s00-raw"]["crowdsecurity/syslog-logs"][0].Success == false
results["s00-raw"]["crowdsecurity/syslog-logs"][1].Success == false
results["s00-raw"]["crowdsecurity/syslog-logs"][2].Success == false
Expand All @@ -73,7 +78,8 @@ results["s00-raw"]["crowdsecurity/syslog-logs"][8].Success == false
results["s00-raw"]["crowdsecurity/syslog-logs"][9].Success == false
results["s00-raw"]["crowdsecurity/syslog-logs"][10].Success == false
results["s00-raw"]["crowdsecurity/syslog-logs"][11].Success == false
len(results["s01-parse"]["crowdsecurity/exim-logs"]) == 12
results["s00-raw"]["crowdsecurity/syslog-logs"][12].Success == false
len(results["s01-parse"]["crowdsecurity/exim-logs"]) == 13
results["s01-parse"]["crowdsecurity/exim-logs"][0].Success == true
results["s01-parse"]["crowdsecurity/exim-logs"][0].Evt.Parsed["source_helo"] == "[1.2.3.5]"
results["s01-parse"]["crowdsecurity/exim-logs"][0].Evt.Parsed["target_user"] == "abuse@test.com"
Expand Down Expand Up @@ -285,7 +291,24 @@ results["s01-parse"]["crowdsecurity/exim-logs"][11].Evt.Meta["source_dns"] == "n
results["s01-parse"]["crowdsecurity/exim-logs"][11].Evt.Meta["source_ip"] == "192.0.2.13"
results["s01-parse"]["crowdsecurity/exim-logs"][11].Evt.Meta["username"] == "user"
results["s01-parse"]["crowdsecurity/exim-logs"][11].Evt.Meta["datasource_path"] == "exim-logs.log"
len(results["s02-enrich"]["crowdsecurity/dateparse-enrich"]) == 12
results["s01-parse"]["crowdsecurity/exim-logs"][12].Success == true
results["s01-parse"]["crowdsecurity/exim-logs"][12].Evt.Parsed["message"] == "2023-05-30 06:10:15 login authenticator failed for (U8kjDR) [192.0.2.14]: 535 Incorrect authentication data"
results["s01-parse"]["crowdsecurity/exim-logs"][12].Evt.Parsed["program"] == "exim"
results["s01-parse"]["crowdsecurity/exim-logs"][12].Evt.Parsed["date"] == "2023-05-30 06:10:15"
results["s01-parse"]["crowdsecurity/exim-logs"][12].Evt.Parsed["exim_auth"] == "login"
results["s01-parse"]["crowdsecurity/exim-logs"][12].Evt.Parsed["exim_year"] == "2023"
results["s01-parse"]["crowdsecurity/exim-logs"][12].Evt.Parsed["exim_month"] == "05"
results["s01-parse"]["crowdsecurity/exim-logs"][12].Evt.Parsed["exim_day"] == "30"
results["s01-parse"]["crowdsecurity/exim-logs"][12].Evt.Parsed["exim_time"] == "06:10:15"
results["s01-parse"]["crowdsecurity/exim-logs"][12].Evt.Parsed["source_helo"] == "U8kjDR"
results["s01-parse"]["crowdsecurity/exim-logs"][12].Evt.Parsed["source_ip"] == "192.0.2.14"
results["s01-parse"]["crowdsecurity/exim-logs"][12].Evt.Meta["log_type"] == "exim_failed_auth"
results["s01-parse"]["crowdsecurity/exim-logs"][12].Evt.Meta["service"] == "exim"
results["s01-parse"]["crowdsecurity/exim-logs"][12].Evt.Meta["source_helo"] == "U8kjDR"
results["s01-parse"]["crowdsecurity/exim-logs"][12].Evt.Meta["source_ip"] == "192.0.2.14"
results["s01-parse"]["crowdsecurity/exim-logs"][12].Evt.Meta["datasource_path"] == "exim-logs.log"
results["s01-parse"]["crowdsecurity/exim-logs"][12].Evt.Meta["datasource_type"] == "file"
len(results["s02-enrich"]["crowdsecurity/dateparse-enrich"]) == 13
results["s02-enrich"]["crowdsecurity/dateparse-enrich"][0].Success == true
results["s02-enrich"]["crowdsecurity/dateparse-enrich"][0].Evt.Parsed["source_ip"] == "1.2.3.4"
results["s02-enrich"]["crowdsecurity/dateparse-enrich"][0].Evt.Parsed["source_port"] == "55379"
Expand Down Expand Up @@ -521,4 +544,19 @@ results["s02-enrich"]["crowdsecurity/dateparse-enrich"][11].Evt.Meta["timestamp"
results["s02-enrich"]["crowdsecurity/dateparse-enrich"][11].Evt.Meta["username"] == "user"
results["s02-enrich"]["crowdsecurity/dateparse-enrich"][11].Evt.Meta["datasource_path"] == "exim-logs.log"
results["s02-enrich"]["crowdsecurity/dateparse-enrich"][11].Evt.Enriched["MarshaledTime"] == "2023-05-30T06:10:14Z"
results["s02-enrich"]["crowdsecurity/dateparse-enrich"][12].Success == true
results["s02-enrich"]["crowdsecurity/dateparse-enrich"][12].Evt.Parsed["message"] == "2023-05-30 06:10:15 login authenticator failed for (U8kjDR) [192.0.2.14]: 535 Incorrect authentication data"
results["s02-enrich"]["crowdsecurity/dateparse-enrich"][12].Evt.Parsed["program"] == "exim"
results["s02-enrich"]["crowdsecurity/dateparse-enrich"][12].Evt.Parsed["date"] == "2023-05-30 06:10:15"
results["s02-enrich"]["crowdsecurity/dateparse-enrich"][12].Evt.Parsed["exim_auth"] == "login"
results["s02-enrich"]["crowdsecurity/dateparse-enrich"][12].Evt.Parsed["source_helo"] == "U8kjDR"
results["s02-enrich"]["crowdsecurity/dateparse-enrich"][12].Evt.Parsed["source_ip"] == "192.0.2.14"
results["s02-enrich"]["crowdsecurity/dateparse-enrich"][12].Evt.Meta["log_type"] == "exim_failed_auth"
results["s02-enrich"]["crowdsecurity/dateparse-enrich"][12].Evt.Meta["service"] == "exim"
results["s02-enrich"]["crowdsecurity/dateparse-enrich"][12].Evt.Meta["source_helo"] == "U8kjDR"
results["s02-enrich"]["crowdsecurity/dateparse-enrich"][12].Evt.Meta["source_ip"] == "192.0.2.14"
results["s02-enrich"]["crowdsecurity/dateparse-enrich"][12].Evt.Meta["timestamp"] == "2023-05-30T06:10:15Z"
results["s02-enrich"]["crowdsecurity/dateparse-enrich"][12].Evt.Meta["datasource_path"] == "exim-logs.log"
results["s02-enrich"]["crowdsecurity/dateparse-enrich"][12].Evt.Meta["datasource_type"] == "file"
results["s02-enrich"]["crowdsecurity/dateparse-enrich"][12].Evt.Enriched["MarshaledTime"] == "2023-05-30T06:10:15Z"
len(results["success"][""]) == 0
2 changes: 1 addition & 1 deletion parsers/s01-parse/crowdsecurity/exim-logs.yaml
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Expand Up @@ -13,7 +13,7 @@ pattern_syntax:
EXIM_SOURCE_TLS: 'H=%{EXIM_SOURCE}(?::%{POSINT:source_port})? (:?X=%{NOTSPACE:tls_cipher} CV=(:?yes|no) )?'
nodes:
- grok:
pattern: '%{EXIM_OPT_DATE}%{EXIM_AUTH:exim_auth} authenticator failed for %{EXIM_SOURCE}:(?:%{POSINT:source_port}:)? 535 Incorrect authentication data \(set_id=%{NO_END_PAR:target_user}\)'
pattern: '%{EXIM_OPT_DATE}%{EXIM_AUTH:exim_auth} authenticator failed for %{EXIM_SOURCE}:(?:%{POSINT:source_port}:)? 535 Incorrect authentication data(?: \(set_id=%{NO_END_PAR:target_user}\))?'
apply_on: message
statics:
- meta: log_type
Expand Down