CWE-431 Detail

A handler is not available or implemented.

When an exception is thrown and not caught, the process has given up an opportunity to decide if a given failure or event is worth a change in execution.

Modes Of Introduction

Implementation

Piattaforme applicabili

Linguaggio

Classe: Not Language-Specific (Undetermined)

Conseguenze comuni

Esempi osservati

Potential Mitigations

Phases : Implementation
Handle all possible situations (e.g. error condition).
Phases : Implementation
If an operation can throw an Exception, implement a handler for that specific exception.

Detection Methods

Automated Static Analysis

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.)

Note sulla mappatura delle vulnerabilità

Giustificazione : This CWE entry is at the Base level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.
Commento : Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.

Riferimenti

REF-62

The Art of Software Security Assessment
Mark Dowd, John McDonald, Justin Schuh.

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