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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: f27349e5-1641-4f6a-9e68-30402be0ad4c

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=clusterroles OR clusterrolebindings 
| table sourceIPs{} user.username user.groups{} objectRef.namespace requestURI annotations.authorization.k8s.io/reason 
| dedup user.username user.groups{} 
|`kubernetes_azure_detect_sensitive_role_access_filter`

Macros

The SPL above uses the following Macros:

Note that kubernetes_azure_detect_sensitive_role_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 role resource access is necessary for cluster operation, however source IP, namespace and user group may indicate possible malicious use.

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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