CWE-1253—Incorrect Selection of Fuse Values

名称

Incorrect Selection of Fuse Values

描述

The logic level used to set a system to a secure state relies on a fuse being unblown.

Fuses are often used to store secret data, including security configuration data. When not blown, a fuse is considered to store a logic 0, and, when blown, it indicates a logic 1. Fuses are generally considered to be one-directional, i.e., once blown to logic 1, it cannot be reset to logic 0.

常见后果

范围：

Access Control, Authorization

影响：

Bypass Protection Mechanism, Gain Privileges or Assume Identity

注释：

If the logic used to determine system-security state (by leveraging the values sensed from the fuses) uses negative logic, an attacker might blow the fuse and drive the system to an insecure state.

范围：

Availability

影响：

DoS: Crash, Exit, or Restart

范围：

Confidentiality

影响：

Read Memory

范围：

Integrity

影响：

Modify Memory, Execute Unauthorized Code or Commands

相关 CWE

• CWE-693Protection Mechanism Failure