CWE-1046 Detail

CWE-1046

Creation of Immutable Text Using String Concatenation
2019-01-03
00h00 +00:00
Incomplete
2026-10-28
00h00 +00:00
Notifiche per un CWE specifico
Rimani informato su qualsiasi modifica relativa a un CWE specifico.
Gestione notifiche

Nome: Creation of Immutable Text Using String Concatenation

The product creates an immutable text string using string concatenation operations.

General Informations

Modes Of Introduction

Implementation

Piattaforme applicabili

Linguaggio

Classe: Not Language-Specific (Undetermined)

Conseguenze comuni

Ambito Impatto Probabilità
OtherReduce Performance

Nota: When building a string via a looping feature (e.g., a FOR or WHILE loop), the use of += to append to the existing string will result in the creation of a new object with each iteration, which can be inefficient in comparison with use of text buffer data elements. This issue can make the product perform more slowly. If the relevant code is reachable by an attacker, then this could be influenced to create performance problems.

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.)
Effectiveness : High

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-959

Automated Source Code Performance Efficiency Measure (ASCPEM)
Object Management Group (OMG).
https://www.omg.org/spec/ASCPEM/

REF-1534

Automated Technical Debt Measure, Version 2
OMG.
https://www.omg.org/spec/ATDM2/1.0/PDF

Invio

Nome Organizzazione Data Data di rilascio Version
CWE Content Team MITRE 2018-07-02 +00:00 2019-01-03 +00:00 3.2

Modifiche

Nome Organizzazione Data Commento
CWE Content Team MITRE 2020-02-24 +00:00 updated Description, Relationships
CWE Content Team MITRE 2020-08-20 +00:00 updated Relationships
CWE Content Team MITRE 2023-01-31 +00:00 updated Description
CWE Content Team MITRE 2023-04-27 +00:00 updated References, Relationships
CWE Content Team MITRE 2023-06-29 +00:00 updated Mapping_Notes
CWE Content Team MITRE 2025-12-11 +00:00 updated Applicable_Platforms, Common_Consequences, Description, Time_of_Introduction
CWE Content Team MITRE 2026-10-28 +00:00 updated Common_Consequences, Description, Detection_Factors, References