CVE-2023-21433

Documented procedures facilitate correct implementation and ongoing management of authorization decisions.

Guides setting of default permissions to the minimum required level.

Establishes roles, responsibilities, and authorization processes for all configuration management activities.

Procedures establish authorization rules for physical and environmental access, limiting improper authorization.

Training covers proper setting of permissions on resources, reducing incorrect default or inherited permissions after deployment.

Periodic reviews identify and correct flaws in authorization decisions or enforcement.

The control's documentation requirement reduces improper authorization by ensuring only mission-justified actions bypass authentication.

Establishing permitted attributes and values, plus auditing changes, ensures authorization decisions are based on correctly managed policy data.

Lifecycle management can encompass permission settings, yet the control is too broad to specifically mitigate incorrect defaults.

Defining and enforcing least-privilege access permissions directly prevents overly permissive defaults at install time.

Hardened baselines and configuration management explicitly require correct default file permissions.

Secure SDLC practices include establishing secure defaults, but address only the development-phase portion of the weakness.

A.5.1 only requires the existence of an overarching policy and topic-specific policies (including on access control); it does not itself perform or enforce any authorization check, so the CWE-285 weakness can still be exploited.

Mapping access rights to information classification and business requirements forces correct enforcement of authorization decisions, blocking the incorrect authorization weakness at the policy and implementation stage.