Insecure Security Identifier Mechanism

Incomplete Class
Structure: Simple
Description

The System-on-Chip (SoC) implements a Security Identifier mechanism to differentiate what actions are allowed or disallowed when a transaction originates from an entity. However, the Security Identifiers are not correctly implemented.

Extended Description

Systems-On-Chip (Integrated circuits and hardware engines) implement Security Identifiers to differentiate/identify actions originated from various agents. These actions could be 'read', 'write', 'program', 'reset', 'fetch', 'compute', etc. Security identifiers are generated and assigned to every agent in the System (SoC) that is either capable of generating an action or receiving an action from another agent. Every agent could be assigned a unique, Security Identifier based on its trust level or privileges. A broad class of flaws can exist in the Security Identifier process, including but not limited to missing security identifiers, improper conversion of security identifiers, incorrect generation of security identifiers, etc.

Common Consequences 1
Scope: ConfidentialityIntegrityAvailabilityAccess Control

Impact: Modify MemoryRead MemoryDoS: Resource Consumption (Other)Execute Unauthorized Code or CommandsGain Privileges or Assume IdentityQuality Degradation

Potential Mitigations 2
Phase: Architecture and Design
Security Identifier Decoders must be reviewed for design inconsistency and common weaknesses.
Phase: Implementation
Access and programming flows must be tested in pre-silicon and post-silicon testing.
Applicable Platforms
Languages:
Not Language-Specific : Undetermined
Technologies:
Bus/Interface Hardware : UndeterminedNot Technology-Specific : Undetermined
Modes of Introduction
Architecture and Design
Implementation
Related Weaknesses
Notes
MaintenanceThis entry is still under development and will continue to see updates and content improvements.