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Description

This search provides information on Kubernetes accounts accessing sensitve objects such as configmpas or secrets

  • Type: Hunting

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

  • Last Updated: 2020-05-20
  • Author: Rod Soto, Splunk
  • ID: 1bba382b-07fd-4ffa-b390-8002739b76e8

Annotations

ATT&CK
Kill Chain Phase
  • Exploitation
NIST
CIS20
CVE 
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`kubernetes_azure` category=kube-audit 
| spath input=properties.log
| search objectRef.resource=secrets OR configmaps user.username=system.anonymous OR annotations.authorization.k8s.io/decision=allow  
|table user.username user.groups{} objectRef.resource objectRef.namespace objectRef.name annotations.authorization.k8s.io/reason 
|dedup user.username user.groups{} 
|`kubernetes_azure_detect_sensitive_object_access_filter`

Macros

The SPL above uses the following Macros:

Note that kubernetes_azure_detect_sensitive_object_access_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

Sensitive object access is not necessarily malicious but user and object context can provide guidance for detection.

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

source | version: 1