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Determine App Service, Key Vault, and Resource Manager Security Posture Goals

Implementation Effort: Medium — Defining and aligning security posture goals requires collaboration across security, compliance, and platform teams, and may involve policy customization and continuous monitoring.

User Impact: Low — These goals are implemented and enforced by administrators and do not require end-user interaction.

Overview​

Security posture goals in Microsoft Defender for Cloud help organizations define and maintain a secure baseline for critical Azure services like App Service, Key Vault, and Resource Manager. These goals are enforced through built-in policy initiatives and recommendations aligned with industry standards such as CIS and NIST 1.

App Service​

Security posture goals for App Service include:

  • Enforcing HTTPS-only traffic.
  • Restricting cross-origin resource sharing (CORS).
  • Enabling diagnostic logging.
  • Using managed identities for secure access to other Azure resources 1.

These goals help ensure secure application hosting and align with the "Verify Explicitly" principle of Zero Trust.

Key Vault​

For Key Vault, posture goals focus on:

  • Enabling Defender for Key Vault to detect anomalous access attempts 2.
  • Using RBAC instead of access policies.
  • Enabling logging and diagnostics.
  • Restricting public network access and using private endpoints 1.

These controls support the "Use Least Privilege Access" principle by minimizing exposure of sensitive secrets and keys.

Resource Manager​

Security posture goals for Azure Resource Manager include:

  • Monitoring control plane operations for suspicious activity.
  • Enforcing RBAC and least privilege access.
  • Auditing and logging all management operations.
  • Preventing unauthorized deployments or role assignments 1.

These goals align with the "Assume Breach" principle by ensuring visibility and control over infrastructure-level changes.

Failing to define and enforce these posture goals can lead to misconfigurations, increased attack surface, and undetected malicious activity across your Azure environment.

Reference​