Improper Identifier for IP Block used in System-On-Chip (SOC)

A System-on-Chip integrates multiple hardware components, or IP blocks, each with different security needs. A unique and immutable identifier for each block is essential for secure operations like routing transactions, managing resets, or controlling access to sensitive data. When this identifier is missing or flawed, the SoC cannot properly authenticate which component is making a request, opening the door to spoofing, unauthorized actions, and system malfunctions. This vulnerability typically manifests in four ways: a completely missing identifier mechanism, an insufficient identifier that doesn't block all relevant attacks, a misconfigured mechanism that isn't implemented correctly, or an ignored identifier where the SoC doesn't enforce security policies based on it. Each scenario prevents the system from establishing the trusted identity required for secure communication and access control between chip components.