CVE-2023-21421

Policy addresses roles, responsibilities, and privilege management to prevent improper privilege assignments.

Access supervision ensures privileges are assigned and managed without improper escalation or retention.

Assigning group/role memberships and access authorizations (privileges) while reviewing accounts addresses improper privilege management.

Enforces proper privilege management by requiring all decisions through the verified reference monitor.

By mandating division of duties across roles, the control enforces proper privilege management and prevents a single entity from controlling an entire sensitive process.

Implements core proper privilege management by restricting to only required rights.

Policy requires training on privilege management and least privilege, making it harder to exploit improper privilege management weaknesses.

Training covers proper privilege management practices, making incorrect privilege assignments less likely.

Runtime monitoring of software and data surfaces adverse events triggered by unhandled permission failures.

Defining, enforcing and reviewing access permissions with least privilege directly prevents code paths that mishandle insufficient privileges.

Generating logs of permission-related events enables detection and analysis of improper handling.

A.5.15 only requires determining requirements, defining a topic-specific policy on access control, and considering various factors; it does not itself enforce, implement, or prevent exploitation of mishandled insufficient permissions.

Defining and communicating authorization levels for each role limits the assignment of excessive or unnecessary privileges.