diff --git a/rules/google-workspace/mfa_disabled_for_google_workspace_organization.toml b/rules/google-workspace/mfa_disabled_for_google_workspace_organization.toml new file mode 100644 index 000000000..0fd89cb6a --- /dev/null +++ b/rules/google-workspace/mfa_disabled_for_google_workspace_organization.toml @@ -0,0 +1,42 @@ +[metadata] +creation_date = "2020/11/17" +ecs_version = ["1.6.0"] +maturity = "production" +updated_date = "2020/11/17" + +[rule] +author = ["Elastic"] +description = """ +Detects when multi-factor authentication (MFA) is disabled for a Google Workspace organization. An adversary may attempt +to modify a password policy in order to weaken an organization’s security controls. +""" +false_positives = [ + """ + MFA settings may be modified by system administrators. Verify that the configuration change was expected. Exceptions + can be added to this rule to filter expected behavior. + """, +] +from = "now-130m" +index = ["filebeat-*"] +interval = "10m" +language = "kuery" +license = "Elastic License" +name = "MFA Disabled for Google Workspace Organization" +note = """### 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/current/filebeat-module-gsuite.html""" +risk_score = 47 +rule_id = "e555105c-ba6d-481f-82bb-9b633e7b4827" +severity = "medium" +tags = ["Elastic", "Cloud", "Google Workspace", "Continuous Monitoring", "SecOps", "Identity and Access"] +type = "query" + +query = ''' +event.dataset:gsuite.admin and event.provider:admin and event.category:iam and event.action:(ENFORCE_STRONG_AUTHENTICATION or ALLOW_STRONG_AUTHENTICATION) and gsuite.admin.new_value:false +''' +