Try in Splunk Security Cloud

Description

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

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

  • Last Updated: 2020-07-11
  • Author: Rod Soto, Splunk
  • ID: bdb6d596-86a0-4aba-8369-418ae8b9963a

Annotations

ATT&CK
Kill Chain Phase
  • Exploitation
NIST
CIS20
CVE
1
2
3
4
`google_gcp_pubsub_message` data.protoPayload.authorizationInfo{}.resource=configmaps OR secrets  
| table data.protoPayload.requestMetadata.callerIp src_user data.resource.labels.cluster_name data.protoPayload.request.metadata.namespace data.labels.authorization.k8s.io/decision 
| dedup data.protoPayload.requestMetadata.callerIp src_user data.resource.labels.cluster_name 
|`kubernetes_gcp_detect_sensitive_object_access_filter`

Macros

The SPL above uses the following Macros:

:information_source: kubernetes_gcp_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 splunk add on for GCP . This search works with pubsub messaging service logs.

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

: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

source | version: 1