mirror of
https://github.com/splunk/security_content
synced 2026-06-08 17:32:49 +00:00
Bhavin Patel
70 lines
2.9 KiB
YAML
70 lines
2.9 KiB
YAML
name: Kubernetes DaemonSet Deployed
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id: bf39c3a3-b191-4d42-8738-9d9797bd0c3a
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version: 1
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date: '2023-12-14'
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author: Patrick Bareiss, Splunk
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status: production
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type: Anomaly
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description: The following analytic detects the creation of a DaemonSet in a Kubernetes cluster.
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A DaemonSet ensures the presence of a specific pod on every node in the cluster, making it an ideal avenue for persistent access.
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This behavior is identified by monitoring Kubernetes Audit logs for the creation of a DaemonSet.
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The identified behavior is worth noting for a SOC as it could potentially allow an attacker to maintain persistent access to the Kubernetes infrastructure.
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The impact of such an attack could be severe, leading to persistent attacks, service disruptions, or unauthorized access to sensitive information.
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data_source: []
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search: '`kube_audit` "objectRef.resource"=daemonsets verb=create
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| stats count values(user.groups{}) as user_groups by kind objectRef.name objectRef.namespace objectRef.resource
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requestObject.kind responseStatus.code sourceIPs{} stage user.username userAgent verb
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| rename sourceIPs{} as src_ip, user.username as user
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| `kubernetes_daemonset_deployed_filter` '
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how_to_implement: The detection is based on data that originates from Kubernetes Audit logs. Ensure that audit logging is enabled in your Kubernetes cluster.
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Kubernetes audit logs provide a record of the requests made to the Kubernetes API server, which is crucial for monitoring and detecting suspicious activities.
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Configure the audit policy in Kubernetes to determine what kind of activities are logged. This is done by creating an Audit Policy and providing it to the API server.
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Use the Splunk OpenTelemetry Collector for Kubernetes to collect the logs. This doc will describe how to collect the audit log file https://github.com/signalfx/splunk-otel-collector-chart/blob/main/docs/migration-from-sck.md.
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known_false_positives: unknown
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references:
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- https://kubernetes.io/docs/tasks/debug/debug-cluster/audit/
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tags:
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analytic_story:
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- Kubernetes Security
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asset_type: Kubernetes
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confidence: 70
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impact: 70
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message: DaemonSet deployed to Kubernetes by user $user$
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mitre_attack_id:
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- T1204
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observable:
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- name: user
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type: User
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role:
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- Attacker
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- name: src_ip
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type: IP Address
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role:
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- Attacker
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product:
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- Splunk Enterprise
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- Splunk Enterprise Security
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- Splunk Cloud
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required_fields:
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- user.groups{}
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- kind
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- objectRef.name
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- objectRef.namespace
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- objectRef.resource
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- requestObject.kind
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- responseStatus.code
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- sourceIPs{}
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- stage
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- user.username
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- userAgent
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- verb
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risk_score: 49
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security_domain: network
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tests:
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- name: True Positive Test
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attack_data:
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- data: https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1204/kubernetes_audit_daemonset_created/kubernetes_audit_daemonset_created.json
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sourcetype: _json
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source: kubernetes
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