Justin Ibarra
57 lines
2.5 KiB
TOML
57 lines
2.5 KiB
TOML
[metadata]
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creation_date = "2020/11/17"
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maturity = "production"
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updated_date = "2021/05/10"
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[rule]
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author = ["Elastic"]
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description = """
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Detects when a Google Workspace password policy is modified. An adversary may attempt to modify a password policy in
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order to weaken an organization’s security controls.
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"""
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false_positives = [
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"""
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Password policies may be modified by system administrators. Verify that the configuration change was expected.
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Exceptions can be added to this rule to filter expected behavior.
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""",
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]
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from = "now-130m"
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index = ["filebeat-*", "logs-google_workspace*"]
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interval = "10m"
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language = "kuery"
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license = "Elastic License v2"
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name = "Google Workspace Password Policy Modified"
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note = """## Config
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The Google Workspace Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule.
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### Important Information Regarding Google Workspace Event Lag Times
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- 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.
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- This rule is configured to run every 10 minutes with a lookback time of 130 minutes.
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- 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.
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- By default, `var.interval` is set to 2 hours (2h). Consider changing this interval to a lower value, such as 10 minutes (10m).
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- See the following references for further information.
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- https://support.google.com/a/answer/7061566
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- https://www.elastic.co/guide/en/beats/filebeat/current/filebeat-module-gsuite.html"""
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risk_score = 47
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rule_id = "a99f82f5-8e77-4f8b-b3ce-10c0f6afbc73"
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severity = "medium"
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tags = ["Elastic", "Cloud", "Google Workspace", "Continuous Monitoring", "SecOps", "Identity and Access"]
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timestamp_override = "event.ingested"
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type = "query"
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query = '''
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event.dataset:(gsuite.admin or google_workspace.admin) and
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event.provider:admin and event.category:iam and
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event.action:(CHANGE_APPLICATION_SETTING or CREATE_APPLICATION_SETTING) and
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gsuite.admin.setting.name:(
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"Password Management - Enforce strong password" or
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"Password Management - Password reset frequency" or
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"Password Management - Enable password reuse" or
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"Password Management - Enforce password policy at next login" or
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"Password Management - Minimum password length" or
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"Password Management - Maximum password length"
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)
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'''
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