COMMON WEAKNESS ENUMERATIONDraft

CWE-471

Modification of Assumed-Immutable Data (MAID)

The product does not properly protect an assumed-immutable element from being modified by an attacker.

Soyutlama

Base

Yapı

Simple

Sömürü İhtimali

Medium

Problemi anla

Problem nedir?

The product does not properly protect an assumed-immutable element from being modified by an attacker.

Genişletilmiş açıklama

This occurs when a particular input is critical enough to the functioning of the application that it should not be modifiable at all, but it is. Certain resources are often assumed to be immutable when they are not, such as hidden form fields in web applications, cookies, and reverse DNS lookups.

Kök neden

Problem nasıl ve ne zaman oluşur?

Yaşam döngüsü evresi

Implementation

Yaşam döngüsü evresi

Architecture and Design

Risk

Başarılı sömürü neye yol açar?

Modify Application Data

Etkilenen güvenlik alanları: Integrity

Common data types that are attacked are environment variables, web application parameters, and HTTP headers.
Unexpected State

Etkilenen güvenlik alanları: Integrity

Savunma

Nasıl önlenir ve çözülür?

Architecture and Design · Operation · Implementation

Birden fazla yaşam döngüsü evresinde uygulanacak savunma

Detay
When the data is stored or transmitted through untrusted sources that could modify the data, implement integrity checks to detect unauthorized modification, or store/transmit the data in a trusted location that is free from external influence.