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Add auditd example with Auditbeat in kubernetes manifests #17431

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merged 5 commits into from
Apr 6, 2020
Merged

Add auditd example with Auditbeat in kubernetes manifests #17431

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784454f
Add auditd example with Auditbeat in kubernetes manifests
jsoriano Apr 2, 2020
1a5095d
Merge remote-tracking branch 'origin/master' into auditbeat-kubernete…
jsoriano Apr 3, 2020
0a22bd7
Add changelog entry
jsoriano Apr 3, 2020
744701b
Merge branch 'master' into auditbeat-kubernetes-auditd.yml
jsoriano Apr 5, 2020
c1747e1
Merge branch 'master' into auditbeat-kubernetes-auditd.yml
jsoriano Apr 6, 2020
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1 change: 1 addition & 0 deletions CHANGELOG.next.asciidoc
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Expand Up @@ -182,6 +182,7 @@ https://github.com/elastic/beats/compare/v7.0.0-alpha2...master[Check the HEAD d

*Auditbeat*

- Reference kubernetes manifests include configuration for auditd and enrichment with kubernetes metadata. {pull}17431[17431]
- Reference kubernetes manifests mount data directory from the host, so data persist between executions in the same node. {pull}17429[17429]
- Log to stderr when running using reference kubernetes manifests. {pull}17443[174443]

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30 changes: 30 additions & 0 deletions deploy/kubernetes/auditbeat-kubernetes.yaml
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Expand Up @@ -16,6 +16,17 @@ data:

processors:
- add_cloud_metadata:
- add_process_metadata:
match_pids: ['process.pid']
include_fields: ['container.id']
- add_kubernetes_metadata:
host: ${NODE_NAME}
default_indexers.enabled: false
default_matchers.enabled: false
indexers:
- container:
matchers:
- fields.lookup_fields: ['container.id']
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We could probably make these indexers and matchers the default ones for auditbeat.

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@exekias exekias Apr 2, 2020 •
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++ on doing this, I think it should also be default in Metricbeat

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Issue created for this: #17432


cloud.id: ${ELASTIC_CLOUD_ID}
cloud.auth: ${ELASTIC_CLOUD_AUTH}
Expand Down Expand Up @@ -50,6 +61,14 @@ data:
max_file_size: 100 MiB
hash_types: [sha1]
recursive: true
- module: auditd
audit_rules: |
# Executions
-a always,exit -F arch=b64 -S execve,execveat -k exec

# Unauthorized access attempts
-a always,exit -F arch=b64 -S open,creat,truncate,ftruncate,openat,open_by_handle_at -F exit=-EACCES -k access
-a always,exit -F arch=b64 -S open,creat,truncate,ftruncate,openat,open_by_handle_at -F exit=-EPERM -k access
---
# Deploy a auditbeat instance per node for node metrics retrieval
apiVersion: apps/v1
Expand All @@ -71,6 +90,7 @@ spec:
serviceAccountName: auditbeat
terminationGracePeriodSeconds: 30
hostNetwork: true
hostPID: true # Required by auditd module
dnsPolicy: ClusterFirstWithHostNet
containers:
- name: auditbeat
Expand All @@ -92,8 +112,18 @@ spec:
value:
- name: ELASTIC_CLOUD_AUTH
value:
- name: NODE_NAME
valueFrom:
fieldRef:
fieldPath: spec.nodeName
securityContext:
runAsUser: 0
capabilities:
add:
# Capabilities needed for auditd module
- 'AUDIT_READ'
- 'AUDIT_WRITE'
- 'AUDIT_CONTROL'
resources:
limits:
memory: 200Mi
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19 changes: 19 additions & 0 deletions deploy/kubernetes/auditbeat/auditbeat-configmap.yaml
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Expand Up @@ -16,6 +16,17 @@ data:

processors:
- add_cloud_metadata:
- add_process_metadata:
match_pids: ['process.pid']
include_fields: ['container.id']
- add_kubernetes_metadata:
host: ${NODE_NAME}
default_indexers.enabled: false
default_matchers.enabled: false
indexers:
- container:
matchers:
- fields.lookup_fields: ['container.id']

cloud.id: ${ELASTIC_CLOUD_ID}
cloud.auth: ${ELASTIC_CLOUD_AUTH}
Expand Down Expand Up @@ -50,3 +61,11 @@ data:
max_file_size: 100 MiB
hash_types: [sha1]
recursive: true
- module: auditd
audit_rules: |
# Executions
-a always,exit -F arch=b64 -S execve,execveat -k exec

# Unauthorized access attempts
-a always,exit -F arch=b64 -S open,creat,truncate,ftruncate,openat,open_by_handle_at -F exit=-EACCES -k access
-a always,exit -F arch=b64 -S open,creat,truncate,ftruncate,openat,open_by_handle_at -F exit=-EPERM -k access
11 changes: 11 additions & 0 deletions deploy/kubernetes/auditbeat/auditbeat-daemonset.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,7 @@ spec:
serviceAccountName: auditbeat
terminationGracePeriodSeconds: 30
hostNetwork: true
hostPID: true # Required by auditd module
dnsPolicy: ClusterFirstWithHostNet
containers:
- name: auditbeat
Expand All @@ -39,8 +40,18 @@ spec:
value:
- name: ELASTIC_CLOUD_AUTH
value:
- name: NODE_NAME
valueFrom:
fieldRef:
fieldPath: spec.nodeName
securityContext:
runAsUser: 0
capabilities:
add:
# Capabilities needed for auditd module
- 'AUDIT_READ'
- 'AUDIT_WRITE'
- 'AUDIT_CONTROL'
resources:
limits:
memory: 200Mi
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