CWE-653 (不充分的划分) — Vulnerability Class 35

CWE-653 represents a critical architectural flaw where software fails to establish adequate boundaries between components operating at different privilege levels. This weakness allows processes, resources, or functionalities that should remain segregated to interact improperly, effectively breaking down the necessary isolation mechanisms. Attackers typically exploit this vulnerability by leveraging a lower-privileged entry point to bypass security controls, thereby escalating their access to higher-privileged systems or sensitive data. Without strong compartmentalization, a minor breach in a user-facing module can cascade into a complete system compromise, extending the damage scope significantly. To prevent this, developers must enforce strict separation of duties and implement robust access control lists. Utilizing containerization, sandboxing, and principle of least privilege ensures that each component operates within its own secure context, preventing lateral movement and maintaining system integrity against privilege escalation attempts.