CWE-1061 Classe Incomplet

Insufficient Encapsulation

This weakness occurs when a software component exposes too much of its internal workings, such as data structures or implementation logic. This lack of proper boundaries allows other parts of the…

Définition

What is CWE-1061?

This weakness occurs when a software component exposes too much of its internal workings, such as data structures or implementation logic. This lack of proper boundaries allows other parts of the system to interact with it in unintended ways, potentially leading to corrupted data, unexpected behavior, or hidden dependencies.
Insufficient encapsulation creates a fragile codebase where changes in one module can have unpredictable ripple effects across the system. This directly increases maintenance costs and complexity, as developers must spend extra time tracing these unintended couplings instead of focusing on core functionality or security fixes. From a security perspective, this architectural flaw indirectly introduces risk. It becomes harder to identify and patch vulnerabilities because the code's behavior is less predictable and more scattered. Furthermore, the constant need to work around these exposed internals makes it easier for developers to accidentally introduce new security bugs during routine maintenance or feature development.
Impact réel

Real-world CVEs caused by CWE-1061

  • variables declared public allow remote read of system properties such as user name and home directory.

Comment les attaquants l'exploitent

Parcours de l'attaquant étape par étape

  1. 1

    Identifier un chemin de code qui traite des entrées non fiables sans validation.

  2. 2

    Élaborer une charge utile qui exploite le comportement non sécurisé — injection, traversal, débordement ou abus de logique.

  3. 3

    Délivrer la charge utile via une requête normale et observer la réaction de l'application.

  4. 4

    Itérer jusqu'à ce que la réponse divulgue des données, exécute le code de l'attaquant ou élève les privilèges.

Exemple de code vulnérable

Vulnerable C++

The following example shows a basic user account class that includes member variables for the username and password as well as a public constructor for the class and a public method to authorize access to the user account.

Vulnérable C++
#define MAX_PASSWORD_LENGTH 15
  #define MAX_USERNAME_LENGTH 15
  class UserAccount
  {
  		public:
  				UserAccount(char *username, char *password)
  				{
  					if ((strlen(username) > MAX_USERNAME_LENGTH) ||
  					(strlen(password) > MAX_PASSWORD_LENGTH)) {
  						ExitError("Invalid username or password");
  					}
  					strcpy(this->username, username);
  					strcpy(this->password, password);
  				}
  		int authorizeAccess(char *username, char *password)
  		{
  				if ((strlen(username) > MAX_USERNAME_LENGTH) ||
  				(strlen(password) > MAX_PASSWORD_LENGTH)) {
  					ExitError("Invalid username or password");
  				}
```
// if the username and password in the input parameters are equal to* 
  				
  				
  				 *// the username and password of this account class then authorize access* 
  				if (strcmp(this->username, username) ||
  				strcmp(this->password, password))
  				```
  					return 0;
```
// otherwise do not authorize access* 
  				else
  				```
  					return 1;
  		}
  		char username[MAX_USERNAME_LENGTH+1];
  		char password[MAX_PASSWORD_LENGTH+1];
  };
Exemple de code sécurisé

Secure C++

However, the member variables username and password are declared public and therefore will allow access and changes to the member variables to anyone with access to the object. These member variables should be declared private as shown below to prevent unauthorized access and changes.

Sécurisé C++
class UserAccount
  {
  public:
  	...
  private:
  	char username[MAX_USERNAME_LENGTH+1];
  	char password[MAX_PASSWORD_LENGTH+1];
  };
What changed: the unsafe sink is replaced (or the input is validated/escaped) so the same payload no longer triggers the weakness.
Liste de contrôle de prévention

How to prevent CWE-1061

  • Architecture Use safe-by-default frameworks and APIs that prevent the unsafe pattern from being expressible.
  • Implementation Validate input at trust boundaries; use allowlists, not denylists.
  • Implementation Apply the principle of least privilege to credentials, file paths, and runtime permissions.
  • Testing Cover this weakness in CI: SAST rules + targeted unit tests for the data flow.
  • Operation Monitor logs for the runtime signals listed in the next section.
Signaux de détection

How to detect CWE-1061

SAST High

Exécuter une analyse statique (SAST) sur le code source à la recherche du motif non sécurisé dans le flux de données.

DAST Moderate

Exécuter des tests de sécurité applicative dynamique (DAST) contre le point de terminaison en ligne.

Runtime Moderate

Surveiller les journaux runtime pour détecter des traces d'exception inhabituelles, des entrées malformées ou des tentatives de contournement d'autorisation.

Code review Moderate

Revue de code : signaler tout nouveau code qui traite les entrées de cette surface sans utiliser les helpers du framework validés.

Correction automatique Plexicus

Plexicus détecte automatiquement CWE-1061 et ouvre une PR de correction en moins de 60 secondes.

Codex Remedium analyse chaque commit, identifie cette faiblesse précise et livre une pull request prête à être relue avec le correctif. Pas de tickets. Pas de transferts.

Questions fréquentes

Frequently asked questions

Qu'est-ce que CWE-1061 ?

This weakness occurs when a software component exposes too much of its internal workings, such as data structures or implementation logic. This lack of proper boundaries allows other parts of the system to interact with it in unintended ways, potentially leading to corrupted data, unexpected behavior, or hidden dependencies.

Quelle est la gravité de CWE-1061 ?

MITRE n'a pas publié de note de probabilité d'exploitation pour cette faiblesse. Traitez-la comme un impact moyen jusqu'à ce que votre modèle de menace prouve le contraire.

Quels langages ou plateformes sont affectés par CWE-1061 ?

MITRE n'a pas spécifié les plateformes affectées pour ce CWE — il peut s'appliquer à la plupart des stacks applicatives.

Comment puis-je prévenir CWE-1061 ?

Use safe-by-default frameworks, validate untrusted input at trust boundaries, and apply the principle of least privilege. Cover the data-flow signature in CI with SAST.

Comment Plexicus détecte et corrige CWE-1061 ?

Le moteur SAST de Plexicus reconnaît la signature de flux de données de CWE-1061 à chaque commit. Lorsqu'une correspondance est trouvée, notre agent Codex Remedium ouvre une PR de correction avec le code corrigé, les tests et un résumé d'une ligne pour le relecteur.

Où puis-je en savoir plus sur CWE-1061 ?

MITRE publie la définition canonique à https://cwe.mitre.org/data/definitions/1061.html. Vous pouvez également consulter la documentation OWASP et NIST pour des conseils adjacents.

Faiblesses associées

Weaknesses related to CWE-1061

CWE-710 Parent

Improper Adherence to Coding Standards

This weakness occurs when developers don't consistently follow established coding standards and best practices, which can introduce…

CWE-1041 Frère

Use of Redundant Code

This weakness occurs when a codebase contains identical or nearly identical logic duplicated across multiple functions, methods, or…

CWE-1044 Frère

Architecture with Number of Horizontal Layers Outside of Expected Range

This occurs when a software system is built with either too many or too few distinct architectural layers, falling outside a recommended…

CWE-1048 Frère

Invokable Control Element with Large Number of Outward Calls

This weakness occurs when a single function, method, or callable code block makes an excessively high number of calls to other objects or…

CWE-1059 Frère

Insufficient Technical Documentation

This weakness occurs when a software or hardware product lacks comprehensive technical documentation. Missing or incomplete details about…

CWE-1065 Frère

Runtime Resource Management Control Element in a Component Built to Run on Application Servers

This weakness occurs when an application built to run on a managed application server bypasses the server's high-level APIs and instead…

CWE-1066 Frère

Missing Serialization Control Element

This weakness occurs when a class or data structure is marked as serializable but lacks the required control methods to properly handle…

CWE-1068 Frère

Inconsistency Between Implementation and Documented Design

This weakness occurs when the actual code implementation deviates from the intended design described in its official documentation,…

CWE-1076 Frère

Insufficient Adherence to Expected Conventions

This weakness occurs when software code, design, documentation, or other components fail to follow established industry or…

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