GCP Storage Bucket Configuration Modificationedit
Identifies when the configuration is modified for a storage bucket in Google Cloud Platform (GCP). An adversary may modify the configuration of a storage bucket in order to weaken the security controls of their target’s environment.
Rule type: query
Rule indices:
- filebeat-*
- logs-gcp*
Severity: medium
Risk score: 47
Runs every: 5 minutes
Searches indices from: now-6m (Date Math format, see also Additional look-back time
)
Maximum alerts per execution: 100
References:
Tags:
- Elastic
- Cloud
- GCP
- Continuous Monitoring
- SecOps
- Identity and Access
Version: 3 (version history)
Added (Elastic Stack release): 7.10.0
Last modified (Elastic Stack release): 7.11.2
Rule authors: Elastic
Rule license: Elastic License
Potential false positivesedit
Storage bucket configuration may be modified by system administrators. Verify that the configuration change was expected. Exceptions can be added to this rule to filter expected behavior.
Investigation guideedit
The GCP Filebeat module must be enabled to use this rule.
Rule queryedit
event.dataset:(googlecloud.audit or gcp.audit) and event.action:storage.buckets.update and event.outcome:success
Rule version historyedit
- Version 3 (7.11.2 release)
-
- Formatting only
- Version 2 (7.11.0 release)
-
-
Updated query, changed from:
event.dataset:googlecloud.audit and event.action:storage.buckets.update and event.outcome:success
-