COMMON WEAKNESS ENUMERATIONDraft

CWE-474

Use of Function with Inconsistent Implementations

The code uses a function that has inconsistent implementations across operating systems and versions.

Soyutlama

Base

Yapı

Simple

Sömürü İhtimali

Medium

Problemi anla

Problem nedir?

The code uses a function that has inconsistent implementations across operating systems and versions.

Genişletilmiş açıklama

The use of inconsistent implementations can cause changes in behavior when the code is ported or built under a different environment than the programmer expects, which can lead to security problems in some cases. The implementation of many functions varies by platform, and at times, even by different versions of the same platform. Implementation differences can include: - Slight differences in the way parameters are interpreted leading to inconsistent results. - Some implementations of the function carry significant security risks. - The function might not be defined on all platforms. - The function might change which return codes it can provide, or change the meaning of its return codes.

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?

Architecture and Design · Requirements

Birden fazla yaşam döngüsü evresinde uygulanacak savunma

Detay
Do not accept inconsistent behavior from the API specifications when the deviant behavior increase the risk level.

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.)