COMMON WEAKNESS ENUMERATIONIncomplete

CWE-1242

Inclusion of Undocumented Features or Chicken Bits

The device includes chicken bits or undocumented features that can create entry points for unauthorized actors.

Soyutlama

Base

Yapı

Simple

Sömürü İhtimali

Medium

Problemi anla

Problem nedir?

The device includes chicken bits or undocumented features that can create entry points for unauthorized actors.

Genişletilmiş açıklama

A common design practice is to use undocumented bits on a device that can be used to disable certain functional security features. These bits are commonly referred to as "chicken bits". They can facilitate quick identification and isolation of faulty components, features that negatively affect performance, or features that do not provide the required controllability for debug and test. Another way to achieve this is through implementation of undocumented features.

Kök neden

Problem nasıl ve ne zaman oluşur?

Yaşam döngüsü evresi

Architecture and Design

Yaşam döngüsü evresi

Implementation

Yaşam döngüsü evresi

Documentation

Risk

Başarılı sömürü neye yol açar?

Modify MemoryRead MemoryExecute Unauthorized Code or CommandsGain Privileges or Assume IdentityBypass Protection Mechanism

Etkilenen güvenlik alanları: Confidentiality, Integrity, Availability, Access Control

An attacker might exploit these interfaces for unauthorized access.

Savunma

Nasıl önlenir ve çözülür?

Architecture and Design · Implementation

Birden fazla yaşam döngüsü evresinde uygulanacak savunma

Detay
The implementation of chicken bits in a released product is highly discouraged. If implemented at all, ensure that they are disabled in production devices. All interfaces to a device should be documented.

Etkinlik: High