CWE-1331—Improper Isolation of Shared Resources in Network On Chip (NoC)

名称

Improper Isolation of Shared Resources in Network On Chip (NoC)

描述

The Network On Chip (NoC) does not isolate or incorrectly isolates its on-chip-fabric and internal resources such that they are shared between trusted and untrusted agents, creating timing channels.

Typically, network on chips (NoC) have many internal resources that are shared between packets from different trust domains. These resources include internal buffers, crossbars and switches, individual ports, and channels. The sharing of resources causes contention and introduces interference between differently trusted domains, which poses a security threat via a timing channel, allowing attackers to infer data that belongs to a trusted agent. This may also result in introducing network interference, resulting in degraded throughput and latency.

常见后果

范围：

Confidentiality, Availability

影响：

DoS: Resource Consumption (Other), Varies by Context, Other

注释：

Attackers may infer data that belongs to a trusted agent. The methods used to perform this attack may result in noticeably increased resource consumption.

相关 CWE

• CWE-653Improper Isolation or Compartmentalization
• CWE-668Exposure of Resource to Wrong Sphere
• CWE-1189Improper Isolation of Shared Resources on System-on-a-Chip (SoC)