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Description

This search provides information on Kubernetes service accounts,accessing pods and namespaces by IP address and verb

  • Type: Hunting

  • Product: Splunk Enterprise, Splunk Enterprise Security, Splunk Cloud

  • Last Updated: 2020-05-26
  • Author: Rod Soto, Splunk
  • ID: 55a2264a-b7f0-45e5-addd-1e5ab3415c72

Annotations

ATT&CK
Kill Chain Phase
  • Exploitation
NIST
CIS20
CVE 
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`kubernetes_azure` category=kube-audit 
| spath input=properties.log 
| search user.groups{}=system:serviceaccounts* OR user.username=system.anonymous OR annotations.authorization.k8s.io/decision=allow  
| table  sourceIPs{} user.username userAgent verb responseStatus.reason responseStatus.status properties.pod objectRef.namespace 
| top sourceIPs{} user.username verb responseStatus.status properties.pod objectRef.namespace 
|`kubernetes_azure_active_service_accounts_by_pod_namespace_filter`

Macros

The SPL above uses the following Macros:

Note that kubernetes_azure_active_service_accounts_by_pod_namespace_filter is a empty macro by default. It allows the user to filter out any results (false positives) without editing the SPL.

Required field

  • _time

How To Implement

You must install the Add-on for Microsoft Cloud Services and Configure Kube-Audit data diagnostics

Known False Positives

Not all service accounts interactions are malicious. Analyst must consider IP and verb context when trying to detect maliciousness.

Associated Analytic story

RBA

Risk Score Impact Confidence Message
25.0 50 50 tbd

Reference

Test Dataset

Replay any dataset to Splunk Enterprise by using our replay.py tool or the UI. Alternatively you can replay a dataset into a Splunk Attack Range

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