Cis Azure Foundations 8.1.14
DevOps & Securitycis-azure-foundations-8.1.14Cis Azure Foundations 8.1.14 is an Agent Skill for devops & security published in the CyberStrikeus/CyberStrike repository on GitHub: a SKILL.md instruction file an AI agent can load to do this task.
Ensure That 'Notify about alerts with the following severity' is Set to 'High'
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8.1.14 Ensure That 'Notify about alerts with the following severity' is Set to 'High' (Automated)
Description
Ensure that Microsoft Defender for Cloud is configured to send email notifications for alerts with a severity level of 'High' or above, ensuring that critical security threats are promptly communicated to the security team.
Rationale
Configuring alert notifications to trigger on 'High' severity ensures that the most critical security threats are escalated via email. High severity alerts typically indicate active threats, successful exploitation, or critical misconfigurations that require immediate attention. Without proper notification thresholds, security teams may miss critical alerts or be overwhelmed by lower-priority notifications.
Impact
Setting the notification threshold to 'High' will result in email notifications only for high-severity alerts. Medium and low severity alerts will still be visible in the Defender for Cloud portal but will not trigger email notifications. Organizations should ensure they have processes to review lower-severity alerts through the portal or other monitoring channels.
Audit Procedure
From Azure Portal:
- Go to
Microsoft Defender for Cloud. - Under
Management, clickEnvironment settings. - Click the name of a subscription.
- Select the
Email notificationsblade. - Verify that
Notify about alerts with the following severity (or higher)is set toHigh.
From Azure CLI:
az rest --method get --url "https://management.azure.com/subscriptions/{subscriptionId}/providers/Microsoft.Security/securityContacts?api-version=2020-01-01-preview"
Verify that alertNotifications.minimalSeverity is set to High.
From PowerShell:
Get-AzSecurityContact | Select-Object Name, AlertNotifications
Ensure AlertNotifications is enabled and the minimal severity is set to High.
Expected Result
The alert notification severity threshold should be set to High.
Remediation
From Azure Portal:
- Go to
Microsoft Defender for Cloud. - Under
Management, clickEnvironment settings. - Click the name of a subscription.
- Select the
Email notificationsblade. - Set
Notify about alerts with the following severity (or higher)toHigh. - Click
Save.
From Azure CLI:
az rest --method put --url "https://management.azure.com/subscriptions/{subscriptionId}/providers/Microsoft.Security/securityContacts/default?api-version=2020-01-01-preview" --body '{"properties":{"alertNotifications":{"state":"On","minimalSeverity":"High"}}}'
From PowerShell:
Set-AzSecurityContact -Name "default" -AlertAdmin -NotifyOnAlert
Default Value
By default, email notifications for security alerts are not configured.
References
- https://learn.microsoft.com/en-us/azure/defender-for-cloud/configure-email-notifications
- https://learn.microsoft.com/en-us/rest/api/defenderforcloud/security-contacts
- https://learn.microsoft.com/en-us/powershell/module/az.security/set-azsecuritycontact
Profile
- Level 1