COMMON WEAKNESS ENUMERATIONDraft

CWE-397

Declaration of Throws for Generic Exception

The product throws or raises an overly broad exceptions that can hide important details and produce inappropriate responses to certain conditions.

Soyutlama

Base

Yapı

Simple

Sömürü İhtimali

Medium

Problemi anla

Problem nedir?

The product throws or raises an overly broad exceptions that can hide important details and produce inappropriate responses to certain conditions.

Genişletilmiş açıklama

Declaring a method to throw Exception or Throwable promotes generic error handling procedures that make it difficult for callers to perform proper error handling and error recovery. For example, Java's exception mechanism makes it easy for callers to anticipate what can go wrong and write code to handle each specific exceptional circumstance. Declaring that a method throws a generic form of exception defeats this system.

Kök neden

Problem nasıl ve ne zaman oluşur?

Yaşam döngüsü evresi

Implementation

Risk

Başarılı sömürü neye yol açar?

Hide ActivitiesAlter Execution Logic

Etkilenen güvenlik alanları: Non-Repudiation, Other

Throwing a generic exception can hide details about unexpected adversary activities by making it difficult to properly troubleshoot error conditions during execution.

Savunma

Nasıl önlenir ve çözülür?

  • Follow secure coding guidelines for input handling and boundary checking.
  • Enforce strict security reviews and automated static analysis (SAST) checks.

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.)