GCP Storage Bucket Configuration Modification
editGCP Storage Bucket Configuration Modification
editIdentifies 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: 5 (version history)
Added (Elastic Stack release): 7.10.0
Last modified (Elastic Stack release): 7.13.0
Rule authors: Elastic
Rule license: Elastic License v2
Potential false positives
editStorage 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 guide
edit## Config The GCP Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule.
Rule query
editevent.dataset:(googlecloud.audit or gcp.audit) and event.action:"storage.buckets.update" and event.outcome:success
Rule version history
edit- Version 5 (7.13.0 release)
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-
Updated query, changed from:
event.dataset:(googlecloud.audit or gcp.audit) and event.action:storage.buckets.update and event.outcome:success
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- Version 4 (7.12.0 release)
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- Formatting only
- 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
-