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zscaler_zpa: fix handling of multiple remote IPs, and event categorisation
ZScaler appears to sometimes send events with multiple remote IPs. So split the list an raise client.ip to an array if this is the case. The Zscaler ZPA documentation does not make clear what the semantics of this case are, so we bend the ECS a little here. Also fix handling of event.type and event.category to ensure that they agree with ECS definitions, and add event.outcome mappings.
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‎packages/zscaler_zpa/changelog.yml

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# newer versions go on top
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- version: "1.22.2"
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changes:
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- description: Fix handling of remote IP lists in audit data stream.
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type: bugfix
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link: https://github.com/elastic/integrations/pull/
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- description: Fix ECS event type, category and outcome mapping of audit events.
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type: bugfix
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link: https://github.com/elastic/integrations/pull/
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- version: "1.22.1"
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changes:
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- description: Do not set `error.message` for expected behavior related to Zscaler `Host` field.

‎packages/zscaler_zpa/data_stream/audit/_dev/test/pipeline/test-audit.log

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{"ModifiedTime":"2021-11-17T04:29:38.000Z","CreationTime":"2021-11-17T04:29:38.000Z","ModifiedBy":12345678901234567,"RequestID":"11111111-1111-1111-1111-111111111111","SessionID":"1idn23nlfm2q1txa5h3r4mep6","AuditOldValue":"","AuditNewValue":"{\"id\":\"72058340288495701\",\"name\":\"Some-Name\",\"domainOrIpAddress\":\"81.2.69.144\",\"description\":\"This is a description field\",\"enabled\":\"true\"}","AuditOperationType":"Create","ObjectType":"Server","ObjectName":"Some-Name","ObjectID":12345678901234567,"CustomerID":98765432109876543,"User":"[email protected]","ClientAuditUpdate":0}
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{"ModifiedTime":"","CreationTime":"2021-11-17T04:29:38.000Z","ModifiedBy":12345678901234567,"RequestID":"11111111-1111-1111-1111-111111111111","SessionID":"1idn23nlfm2q1txa5h3r4mep6","AuditOldValue":"","AuditNewValue":"{\"id\":\"72058340288495701\",\"name\":\"Some-Name\",\"domainOrIpAddress\":\"example.com\",\"description\":\"This is a description field\",\"enabled\":\"true\"}","AuditOperationType":"Create","ObjectType":"Server","ObjectName":"Some-Name","ObjectID":12345678901234567,"CustomerID":98765432109876543,"User":"[email protected]","ClientAuditUpdate":0}
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{"ModifiedTime":"","CreationTime":"2025-04-30T16:23:40.000Z","ModifiedBy":288263728720249833,"RequestID":"12d6eccc-718c-4657-b267-83cc1c3f35f6","SessionID":"1samau4fwi7xbsf3317mkd5vz","AuditOldValue":"","AuditNewValue":"{\"loginAttempt\":\"2025-04-30 16:23:40 UTC\",\"remoteIP\":\"81.2.69.142, 81.2.69.144\"}","AuditOperationType":"Sign In","ObjectType":"Authentication","ObjectName":"xxxx","ObjectID":"xxxxx","CustomerID":"xxxxx","User":"xxxx","ClientAuditUpdate":1}

‎packages/zscaler_zpa/data_stream/audit/_dev/test/pipeline/test-audit.log-expected.json

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"id": "11111111-1111-1111-1111-111111111111",
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"kind": "event",
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"original": "{\"ModifiedTime\":\"2021-11-17T04:29:38.000Z\",\"CreationTime\":\"2021-11-17T04:29:38.000Z\",\"ModifiedBy\":12345678901234567,\"RequestID\":\"11111111-1111-1111-1111-111111111111\",\"SessionID\":\"1idn23nlfm2q1txa5h3r4mep6\",\"AuditOldValue\":\"\",\"AuditNewValue\":\"{\\\"id\\\":\\\"72058340288495701\\\",\\\"name\\\":\\\"Some-Name\\\",\\\"domainOrIpAddress\\\":\\\"81.2.69.144\\\",\\\"description\\\":\\\"This is a description field\\\",\\\"enabled\\\":\\\"true\\\"}\",\"AuditOperationType\":\"Create\",\"ObjectType\":\"Server\",\"ObjectName\":\"Some-Name\",\"ObjectID\":12345678901234567,\"CustomerID\":98765432109876543,\"User\":\"[email protected]\",\"ClientAuditUpdate\":0}",
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"outcome": "success",
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"type": [
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"creation"
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]
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"id": "11111111-1111-1111-1111-111111111111",
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"kind": "event",
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"original": "{\"ModifiedTime\":\"\",\"CreationTime\":\"2021-11-17T04:29:38.000Z\",\"ModifiedBy\":12345678901234567,\"RequestID\":\"11111111-1111-1111-1111-111111111111\",\"SessionID\":\"1idn23nlfm2q1txa5h3r4mep6\",\"AuditOldValue\":\"\",\"AuditNewValue\":\"{\\\"id\\\":\\\"72058340288495701\\\",\\\"name\\\":\\\"Some-Name\\\",\\\"domainOrIpAddress\\\":\\\"example.com\\\",\\\"description\\\":\\\"This is a description field\\\",\\\"enabled\\\":\\\"true\\\"}\",\"AuditOperationType\":\"Create\",\"ObjectType\":\"Server\",\"ObjectName\":\"Some-Name\",\"ObjectID\":12345678901234567,\"CustomerID\":98765432109876543,\"User\":\"[email protected]\",\"ClientAuditUpdate\":0}",
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"outcome": "success",
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"type": [
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"creation"
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]
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}
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}
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}
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},
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{
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"@timestamp": "2025-04-30T16:23:40.000Z",
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"client": {
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"ip": [
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"81.2.69.142",
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"81.2.69.144"
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]
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},
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"ecs": {
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"version": "8.11.0"
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},
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"event": {
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"category": [
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"authentication",
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"session"
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],
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"created": "2025-04-30T16:23:40.000Z",
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"id": "12d6eccc-718c-4657-b267-83cc1c3f35f6",
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"kind": "event",
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"original": "{\"ModifiedTime\":\"\",\"CreationTime\":\"2025-04-30T16:23:40.000Z\",\"ModifiedBy\":288263728720249833,\"RequestID\":\"12d6eccc-718c-4657-b267-83cc1c3f35f6\",\"SessionID\":\"1samau4fwi7xbsf3317mkd5vz\",\"AuditOldValue\":\"\",\"AuditNewValue\":\"{\\\"loginAttempt\\\":\\\"2025-04-30 16:23:40 UTC\\\",\\\"remoteIP\\\":\\\"81.2.69.142, 81.2.69.144\\\"}\",\"AuditOperationType\":\"Sign In\",\"ObjectType\":\"Authentication\",\"ObjectName\":\"xxxx\",\"ObjectID\":\"xxxxx\",\"CustomerID\":\"xxxxx\",\"User\":\"xxxx\",\"ClientAuditUpdate\":1}",
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"outcome": "success",
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"type": [
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"start"
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]
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},
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"organization": {
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"id": "xxxxx"
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},
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"related": {
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"ip": [
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"81.2.69.142",
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"81.2.69.144"
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],
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"user": [
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"288263728720249833",
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"xxxx"
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]
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},
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"tags": [
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"preserve_original_event"
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],
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"user": {
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"id": "288263728720249833",
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"name": "xxxx"
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},
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"zscaler_zpa": {
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"audit": {
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"client_audit_update": 1,
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"object": {
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"id": "xxxxx",
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"name": "xxxx",
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"type": "Authentication"
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},
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"operation_type": "Sign In",
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"session": {
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"id": "1samau4fwi7xbsf3317mkd5vz"
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},
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"value": {
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"new": {
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"loginAttempt": "2025-04-30 16:23:40 UTC",
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"remoteIP": "81.2.69.142, 81.2.69.144"
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}
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}
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}
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}
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}
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]
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}

‎packages/zscaler_zpa/data_stream/audit/elasticsearch/ingest_pipeline/default.yml

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field: event.created
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copy_from: '@timestamp'
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ignore_failure: true
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- append:
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field: event.category
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value: iam
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- set:
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field: event.kind
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value: event
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- script:
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if: ctx.json?.AuditOperationType != null && ctx.json.AuditOperationType != ''
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lang: painless
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params:
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event_classification:
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'create':
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type:
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- creation
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category:
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- iam
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outcome: success
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'delete':
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type:
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- deletion
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category:
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- iam
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outcome: success
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'update':
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type:
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- change
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category:
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- iam
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outcome: success
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'sign in':
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type:
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- start
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category:
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- authentication
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- session
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outcome: success
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'sign in failure':
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type:
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- start
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- error
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category: failure
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- session
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outcome:
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'download':
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type:
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- info
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- access
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outcome: success
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category:
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- file
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'sign out':
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type:
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- end
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category:
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- session
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outcome: success
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'client session revoked':
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type:
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- change
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- deletion
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category:
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- iam
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outcome: success
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source: |
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def eventType = ctx.json.AuditOperationType?.toLowerCase();
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ctx.event.type = new ArrayList();
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Map referenceTable = [
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'create': ['creation'],
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'delete': ['deletion'],
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'update': ['change'],
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'sign in': ['access', 'allowed'],
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'sign in failure': ['access', 'error'],
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'download': ['info'],
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'sign out': ['access'],
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'client session revoked': ['end']
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];
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ctx.event.type = referenceTable[eventType];
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def class = params.event_classification[ctx.json.AuditOperationType?.toLowerCase()];
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if (class == null) {
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return;
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}
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ctx.event.type = class.type;
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ctx.event.category = class.category;
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ctx.event.outcome = class.outcome;
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- rename:
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field: json.RequestID
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target_field: event.id
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ctx.server = new HashMap();
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ctx.server.address = valuesMap?.domainOrIpAddress;
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}
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- split:
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field: client.ip
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separator: ', *'
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if: ctx.client?.ip instanceof String && ctx.client.ip.contains(',')
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- append:
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field: related.ip
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value: '{{{client.ip}}}'
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if: ctx.client?.ip != null
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if: ctx.client?.ip instanceof String
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allow_duplicates: false
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ignore_failure: true
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- foreach:
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field: client.ip
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if: ctx.client?.ip instanceof List
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processor:
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append:
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field: related.ip
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value: '{{{_ingest._value}}}'
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allow_duplicates: false
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ignore_failure: true
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- convert:
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field: server.address
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target_field: server.ip

‎packages/zscaler_zpa/manifest.yml

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format_version: "3.0.3"
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name: zscaler_zpa
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title: Zscaler Private Access
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version: "1.22.1"
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version: "1.22.2"
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source:
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license: Elastic-2.0
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description: Collect logs from Zscaler Private Access (ZPA) with Elastic Agent.

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