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Description

This search provides information on Kubernetes service accounts with failure or forbidden access status

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

  • Last Updated: 2020-05-20
  • Author: Rod Soto, Splunk
  • ID: 019690d7-420f-4da0-b320-f27b09961514

Annotations

ATT&CK
Kill Chain Phase
  • Exploitation
NIST
CIS20
CVE
1
2
3
4
5
`kubernetes_azure` category=kube-audit 
| spath input=properties.log 
| search user.groups{}=system:serviceaccounts*  responseStatus.reason=Forbidden 
| table  sourceIPs{} user.username userAgent verb responseStatus.reason responseStatus.status properties.pod objectRef.namespace  
|`kubernetes_azure_detect_service_accounts_forbidden_failure_access_filter`

Macros

The SPL above uses the following Macros:

:information_source: kubernetes_azure_detect_service_accounts_forbidden_failure_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

This search can give false positives as there might be inherent issues with authentications and permissions at cluster.

Associated Analytic story

RBA

Risk Score Impact Confidence Message
25.0 50 50 tbd

:information_source: The Risk Score is calculated by the following formula: Risk Score = (Impact * Confidence/100). Initial Confidence and Impact is set by the analytic author.

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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