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blue-team-tools/rules/cloud/gworkspace/gworkspace_mfa_disabled.yml
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YAML

title: Google Workspace MFA Disabled
id: 780601d1-6376-4f2a-884e-b8d45599f78c
description: Detects when multi-factor authentication (MFA) is disabled.
author: Austin Songer
status: experimental
date: 2021/08/26
modified: 2021/12/02
references:
- https://cloud.google.com/logging/docs/audit/gsuite-audit-logging#3
- https://developers.google.com/admin-sdk/reports/v1/appendix/activity/admin-security-settings#ENFORCE_STRONG_AUTHENTICATION
- https://developers.google.com/admin-sdk/reports/v1/appendix/activity/admin-security-settings?hl=en#ALLOW_STRONG_AUTHENTICATION
logsource:
product: google_workspace
service: google_workspace.admin
detection:
selection_base:
eventService: admin.googleapis.com
eventName:
- ENFORCE_STRONG_AUTHENTICATION
- ALLOW_STRONG_AUTHENTICATION
selection_eventValue:
new_value: 'false'
condition: all of selection*
level: medium
tags:
- attack.impact
falsepositives:
- MFA may be disabled and performed by a system administrator.