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[system] Populate event.action for Linux IAM auth events and sudo systemctl #21042

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[system] Populate event.action for Linux IAM auth events and sudo systemctl #21042

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eac39c6
[system] Populate event.action for Linux IAM auth events and sudo sys…
marc-gr Sep 3, 2026
d883732
[system] Point changelog at the pull request
marc-gr Sep 3, 2026
eda1230
[system] Skip systemctl flags when resolving the unit and align event…
marc-gr Sep 3, 2026
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5 changes: 5 additions & 0 deletions packages/system/changelog.yml
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@@ -1,4 +1,9 @@
# later versions go on top
- version: "2.23.5"
changes:
- description: Populate `event.action` for Linux useradd/userdel/groupadd/groupdel auth events, extract `group.name` from gshadow/group file lines, and set `service.name` plus `event.action` for sudo systemctl start/stop/restart commands.
type: bugfix
link: https://github.com/elastic/integrations/pull/21042
- version: "2.23.4"
changes:
- description: Include Windows Security event 6272 in subject-field ECS mapping (SubjectUserSid, SubjectUserName, SubjectDomainName) like other audited events.
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3 changes: 3 additions & 0 deletions ...ta_stream/auth/_dev/test/pipeline/test-auth-debian11-preserve-original.json-expected.json
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Expand Up @@ -13,6 +13,7 @@
"version": "8.11.0"
},
"event": {
"action": "user-created",
"category": [
"iam"
],
Expand Down Expand Up @@ -790,6 +791,7 @@
"version": "8.11.0"
},
"event": {
"action": "group-created",
"category": [
"iam"
],
Expand Down Expand Up @@ -924,6 +926,7 @@
"version": "8.11.0"
},
"event": {
"action": "user-deleted",
"category": [
"iam"
],
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3 changes: 3 additions & 0 deletions packages/system/data_stream/auth/_dev/test/pipeline/test-auth-debian11.json-expected.json
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Expand Up @@ -13,6 +13,7 @@
"version": "8.11.0"
},
"event": {
"action": "user-created",
"category": [
"iam"
],
Expand Down Expand Up @@ -766,6 +767,7 @@
"version": "8.11.0"
},
"event": {
"action": "group-created",
"category": [
"iam"
],
Expand Down Expand Up @@ -894,6 +896,7 @@
"version": "8.11.0"
},
"event": {
"action": "user-deleted",
"category": [
"iam"
],
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2 changes: 2 additions & 0 deletions packages/system/data_stream/auth/_dev/test/pipeline/test-auth-rhel79.log-expected.json
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Expand Up @@ -6,6 +6,7 @@
"version": "8.11.0"
},
"event": {
"action": "user-created",
"category": [
"iam"
],
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"version": "8.11.0"
},
"event": {
"action": "user-deleted",
"category": [
"iam"
],
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22 changes: 22 additions & 0 deletions packages/system/data_stream/auth/_dev/test/pipeline/test-auth-ubuntu1204.log-expected.json
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Expand Up @@ -2316,6 +2316,7 @@
"version": "8.11.0"
},
"event": {
"action": "group-created",
"category": [
"iam"
],
Expand All @@ -2328,6 +2329,10 @@
"creation"
]
},
"group": {
"id": "1003",
"name": "tsg"
},
"host": {
"hostname": "precise32"
},
Expand All @@ -2354,6 +2359,7 @@
"version": "8.11.0"
},
"event": {
"action": "group-created",
"category": [
"iam"
],
Expand All @@ -2366,6 +2372,9 @@
"creation"
]
},
"group": {
"name": "tsg"
},
"host": {
"hostname": "precise32"
},
Expand All @@ -2392,6 +2401,7 @@
"version": "8.11.0"
},
"event": {
"action": "group-created",
"category": [
"iam"
],
Expand Down Expand Up @@ -2434,6 +2444,7 @@
"version": "8.11.0"
},
"event": {
"action": "user-created",
"category": [
"iam"
],
Expand Down Expand Up @@ -4642,6 +4653,7 @@
"version": "8.11.0"
},
"event": {
"action": "group-created",
"category": [
"iam"
],
Expand All @@ -4654,6 +4666,10 @@
"creation"
]
},
"group": {
"id": "111",
"name": "mysql"
},
"host": {
"hostname": "precise32"
},
Expand All @@ -4680,6 +4696,7 @@
"version": "8.11.0"
},
"event": {
"action": "group-created",
"category": [
"iam"
],
Expand All @@ -4692,6 +4709,9 @@
"creation"
]
},
"group": {
"name": "mysql"
},
"host": {
"hostname": "precise32"
},
Expand All @@ -4718,6 +4738,7 @@
"version": "8.11.0"
},
"event": {
"action": "group-created",
"category": [
"iam"
],
Expand Down Expand Up @@ -4760,6 +4781,7 @@
"version": "8.11.0"
},
"event": {
"action": "user-created",
"category": [
"iam"
],
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2 changes: 2 additions & 0 deletions packages/system/data_stream/auth/_dev/test/pipeline/test-auth.log-expected.json
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Expand Up @@ -468,6 +468,7 @@
"version": "8.11.0"
},
"event": {
"action": "group-created",
"category": [
"iam"
],
Expand Down Expand Up @@ -510,6 +511,7 @@
"version": "8.11.0"
},
"event": {
"action": "user-created",
"category": [
"iam"
],
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2 changes: 2 additions & 0 deletions .../system/data_stream/auth/_dev/test/pipeline/test-host-syslog-processor.json-expected.json
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Expand Up @@ -51,6 +51,7 @@
"version": "8.11.0"
},
"event": {
"action": "group-deleted",
"category": [
"iam"
],
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"version": "8.11.0"
},
"event": {
"action": "user-created",
"category": [
"iam"
],
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14 changes: 14 additions & 0 deletions packages/system/data_stream/auth/_dev/test/pipeline/test-iam-systemctl.log
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2026-08-14T10:55:26.000000+00:00 host01 useradd[3823271]: new user: name=testuser, UID=16004, GID=16004, home=/home/testuser, shell=/bin/bash
2026-08-20T10:08:02.000000+00:00 host01 userdel[2848204]: delete user 'testuser1'
2026-08-20T10:07:04.000000+00:00 host01 groupadd[2846675]: new group: name=testgroup, GID=16005
2026-08-20T10:08:25.000000+00:00 host01 groupdel[2849001]: group 'testgroup' removed
2026-08-20T09:59:53.000000+00:00 host01 useradd[2827781]: new group: name=testuser1, GID=16004
2026-08-20T10:08:02.000000+00:00 host01 userdel[2848204]: removed group 'testuser1' owned by 'testuser1'
2026-07-29T16:04:11.000000+00:00 host01 userdel[5845]: removed group 'testsiemlog' owned by 'testsiemlog'
2026-08-14T11:03:49.000000+00:00 host01 sudo[3843970]: root : TTY=pts/2 ; PWD=/home ; USER=root ; COMMAND=/bin/systemctl stop rsyslog
2026-07-29T16:04:56.000000+00:00 host01 sudo[3843971]: testuser : TTY=pts/2 ; PWD=/home/testuser ; USER=root ; COMMAND=/bin/systemctl start rsyslog
2026-08-20T10:07:03.000000+00:00 host01 groupadd[2846675]: group added to /etc/gshadow: name=testgroup
2026-08-20T10:08:24.000000+00:00 host01 groupdel[2849001]: group 'testgroup' removed from /etc/gshadow
2026-08-14T11:04:10.000000+00:00 host01 sudo[3843972]: root : TTY=pts/2 ; PWD=/home ; USER=root ; COMMAND=/bin/systemctl stop rsyslog.service
2026-08-14T11:04:20.000000+00:00 host01 sudo[3843973]: root : TTY=pts/2 ; PWD=/home ; USER=root ; COMMAND=/bin/systemctl start --no-block rsyslog
2026-08-14T11:04:30.000000+00:00 host01 sudo[3843974]: root : TTY=pts/2 ; PWD=/home ; USER=root ; COMMAND=/bin/systemctl --user stop --now rsyslog
4 changes: 4 additions & 0 deletions packages/system/data_stream/auth/_dev/test/pipeline/test-iam-systemctl.log-config.yml
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fields:
input.type: log
dynamic_fields:
"event.ingested": "^.*$"
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