CWE-1312—Missing Protection for Mirrored Regions in On-Chip Fabric Firewall

名称

Missing Protection for Mirrored Regions in On-Chip Fabric Firewall

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.

Few fabrics mirror memory and address ranges, where mirrored regions contain copies of the original data. This redundancy is used to achieve fault tolerance. Whatever protections the fabric firewall implements for the original region should also apply to the mirrored regions. If not, an attacker could bypass existing read/write protections by reading from/writing to the mirrored regions to leak or corrupt the original data.

常见后果

范围：

Confidentiality, Integrity, Access Control

影响：

Modify Memory, Read Memory, Bypass Protection Mechanism

相关 CWE

• CWE-284Improper Access Control
• CWE-1251Mirrored Regions with Different Values