Insecure Security Identifier Mechanism

In a System-on-Chip, Security Identifiers act like digital ID badges for every hardware agent (like processors or engines). Each agent gets a unique identifier based on its trust level, which determines what actions it can perform—such as read, write, program, or reset. These identifiers are essential for enforcing security boundaries between different parts of the chip. A wide range of implementation errors can break this security model. Common issues include agents missing identifiers entirely, incorrect generation of identifier values, or improper conversion between identifier formats. These flaws allow unauthorized agents to bypass access controls, potentially leading to data theft, privilege escalation, or system compromise.