Szczegóły CWE-369

The product divides a value by zero.

This weakness typically occurs when an unexpected value is provided to the product, or if an error occurs that is not properly detected. It frequently occurs in calculations involving physical dimensions such as size, length, width, and height.

Sposoby wprowadzenia

Implementation

Odpowiednie platformy

Język

Class: Not Language-Specific (Undetermined)

Typowe konsekwencje

Zaobserwowane przykłady

Metody wykrywania

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.)
Skuteczność : High

Fuzzing

Fuzz testing (fuzzing) is a powerful technique for generating large numbers of diverse inputs - either randomly or algorithmically - and dynamically invoking the code with those inputs. Even with random inputs, it is often capable of generating unexpected results such as crashes, memory corruption, or resource consumption. Fuzzing effectively produces repeatable test cases that clearly indicate bugs, which helps developers to diagnose the issues.
Skuteczność : High

Uwagi dotyczące mapowania podatności

Uzasadnienie : 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.
Komentarz : 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.

Odniesienia

REF-371

Handling Errors Exceptionally Well in C++
Alex Allain.
https://www.cprogramming.com/tutorial/exceptions.html

REF-372

Exceptions and Exception Handling (C# Programming Guide)
Microsoft.
https://msdn.microsoft.com/pl-pl/library/ms173160(v=vs.100).aspx

Zgłoszenie

Modyfikacje