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Google Workspace API Access Granted via Domain-Wide Delegation of Authority
editGoogle Workspace API Access Granted via Domain-Wide Delegation of Authority
editDetects when a domain-wide delegation of authority is granted to a service account. Domain-wide delegation can be configured to grant third-party and internal applications to access the data of Google Workspace users. An adversary may configure domain-wide delegation to maintain access to their target’s data.
Rule type: query
Rule indices:
- filebeat-*
- logs-google_workspace*
Severity: medium
Risk score: 47
Runs every: 10m
Searches indices from: now-130m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References:
Tags:
- Elastic
- Cloud
- Google Workspace
- Continuous Monitoring
- SecOps
- Identity and Access
Version: 5
Rule authors:
- Elastic
Rule license: Elastic License v2
Investigation guide
edit## Config The Google Workspace Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule. ### Important Information Regarding Google Workspace Event Lag Times - As per Google's documentation, Google Workspace administrators may observe lag times ranging from minutes up to 3 days between the time of an event's occurrence and the event being visible in the Google Workspace admin/audit logs. - This rule is configured to run every 10 minutes with a lookback time of 130 minutes. - To reduce the risk of false negatives, consider reducing the interval that the Google Workspace (formerly G Suite) Filebeat module polls Google's reporting API for new events. - By default, `var.interval` is set to 2 hours (2h). Consider changing this interval to a lower value, such as 10 minutes (10m). - See the following references for further information: - https://support.google.com/a/answer/7061566 - https://www.elastic.co/guide/en/beats/filebeat/8.x/filebeat-module-google_workspace.html
Rule query
editevent.dataset:(gsuite.admin or google_workspace.admin) and event.provider:admin and event.category:iam and event.action:AUTHORIZE_API_CLIENT_ACCESS
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Persistence
- ID: TA0003
- Reference URL: https://attack.mitre.org/tactics/TA0003/
-
Technique:
- Name: Account Manipulation
- ID: T1098
- Reference URL: https://attack.mitre.org/techniques/T1098/