CWE-1312: Missing Protection for Mirrored Regions in On-Chip Fabric Firewall
CWE版本: 4.18
更新日期: 2025-09-09
弱点描述
The firewall in an on-chip fabric protects the main addressed region, but it does not protect any mirrored memory or memory-mapped-IO (MMIO) regions.
常见后果
影响范围: Confidentiality Integrity Access Control
技术影响: Modify Memory Read Memory Bypass Protection Mechanism
潜在缓解措施
阶段: Architecture and Design
描述: The fabric firewall should apply the same protections as the original region to the mirrored regions.
阶段: Implementation
描述: The fabric firewall should apply the same protections as the original region to the mirrored regions.
检测方法
方法: Manual Dynamic Analysis
Using an external debugger, send write transactions to mirrored regions to test if original, write-protected regions are modified. Similarly, send read transactions to mirrored regions to test if the original, read-protected signals can be read.
有效性: High
引入模式
| 阶段 | 说明 |
|---|---|
| Architecture and Design | - |
| Implementation | - |