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CWE-1253

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CWE-1253

Incorrect Selection of Fuse Values

Base
Draft

Description

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

{"xhtml:p":["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."]}

Parent Weaknesses (ChildOf)

Common Consequences

Scope

Access Control
Authorization

Impact

Bypass Protection Mechanism, Gain Privileges or Assume Identity

Scope

Availability

Impact

DoS: Crash, Exit, or Restart

Scope

Confidentiality

Impact

Read Memory

Scope

Integrity

Impact

Modify Memory, Execute Unauthorized Code or Commands

Potential Mitigations

Architecture and Design

Logic should be designed in a way that blown fuses do not put the product into an insecure state that can be leveraged by an attacker.

Applicable Platforms

Not Language-Specific

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