COMMON WEAKNESS ENUMERATIONDraft

CWE-570

Expression is Always False

The product contains an expression that will always evaluate to false.

Soyutlama

Base

Yapı

Simple

Sömürü İhtimali

Medium

Problemi anla

Problem nedir?

The product contains an expression that will always evaluate to false.

Kök neden

Problem nasıl ve ne zaman oluşur?

Yaşam döngüsü evresi

Implementation

Risk

Başarılı sömürü neye yol açar?

Quality DegradationVaries by Context

Etkilenen güvenlik alanları: Other

Savunma

Nasıl önlenir ve çözülür?

Implementation

Refactoring

Detay
Consider refactoring the code, or determine if the code is not including a condition that could cause the expression to become false.

Doğrulama

Nasıl tespit edilir?

Automated Static Analysis

High
Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)