CWE-1357 Classe Incompleto

Reliance on Insufficiently Trustworthy Component

This weakness occurs when a system integrates a component that cannot be fully trusted to meet security, reliability, and maintenance standards, creating risk for the entire product.

Definição

What is CWE-1357?

This weakness occurs when a system integrates a component that cannot be fully trusted to meet security, reliability, and maintenance standards, creating risk for the entire product.
Modern products are often assembled from various third-party components, like open-source libraries or supplier hardware. Each part must be trustworthy; otherwise, it introduces risks like unfixable vulnerabilities, hidden malware, or components that can't be updated when security flaws are discovered. Even internally developed components can become untrustworthy if their source code is lost or their original developers are no longer available. Trust is subjective—different teams and stakeholders have varying criteria for security, safety, and cost. This means architects must make conscious trade-offs, understanding that relying on an insufficiently vetted component can compromise the entire system's integrity, regardless of where that component originated.
Impacto no mundo real

Real-world CVEs caused by CWE-1357

  • CVE-2020-9054

    Chain: network-attached storage (NAS) device has a critical OS command injection (CWE-78) vulnerability that is actively exploited to place IoT devices into a botnet, but some products are "end-of-support" and cannot be patched (CWE-1277). [REF-1097]

Como os atacantes a exploram

Trajeto do atacante passo a passo

  1. 1

    Identificar um caminho de código que trata input não confiável sem validação.

  2. 2

    Criar um payload que explora o comportamento inseguro — injeção, traversal, overflow ou abuso de lógica.

  3. 3

    Entregar o payload através de um pedido normal e observar a reação da aplicação.

  4. 4

    Iterar até que a resposta exponha dados, execute código do atacante ou escale privilégios.

Exemplo de código vulnerável

Vulnerable pseudo

A MITRE não publicou um exemplo de código para este CWE. O padrão abaixo é ilustrativo — consulte os Recursos para referências canónicas.

Vulnerável pseudo 
// Example pattern — see MITRE for the canonical references.
function handleRequest(input) {
  // Untrusted input flows directly into the sensitive sink.
  return executeUnsafe(input);
}
Exemplo de código seguro

Secure pseudo

Seguro pseudo 
// Validate, sanitize, or use a safe API before reaching the sink.
function handleRequest(input) {
  const safe = validateAndEscape(input);
  return executeWithGuards(safe);
}
What changed: the unsafe sink is replaced (or the input is validated/escaped) so the same payload no longer triggers the weakness.
Lista de verificação de prevenção

How to prevent CWE-1357

  • Requirements / Architecture and Design / Implementation For each component, ensure that its supply chain is well-controlled with sub-tier suppliers using best practices. For third-party software components such as libraries, ensure that they are developed and actively maintained by reputable vendors.
  • Architecture and Design / Implementation / Integration / Manufacturing Maintain a Bill of Materials for all components and sub-components of the product. For software, maintain a Software Bill of Materials (SBOM). According to [REF-1247], "An SBOM is a formal, machine-readable inventory of software components and dependencies, information about those components, and their hierarchical relationships."
  • Operation / Patching and Maintenance Continue to monitor changes in each of the product's components, especially when the changes indicate new vulnerabilities, end-of-life (EOL) plans, supplier practices that affect trustworthiness, etc.
Sinais de deteção

How to detect CWE-1357

SAST High

Executar análise estática (SAST) na base de código à procura do padrão inseguro no fluxo de dados.

DAST Moderate

Executar testes dinâmicos de segurança de aplicações (DAST) contra o endpoint em execução.

Runtime Moderate

Monitorizar os registos em tempo de execução para traços de exceção invulgares, input malformado ou tentativas de contornar a autorização.

Code review Moderate

Revisão de código: sinalizar qualquer novo código que trate input desta superfície sem usar os ajudantes validados do framework.

Correção automática do Plexicus

O Plexicus deteta automaticamente o CWE-1357 e abre um PR de correção em menos de 60 segundos.

O Codex Remedium analisa cada commit, identifica esta fraqueza exata e entrega um pull request pronto para revisão com o patch. Sem tickets. Sem transferências.

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Perguntas frequentes

Frequently asked questions

O que é o CWE-1357?

This weakness occurs when a system integrates a component that cannot be fully trusted to meet security, reliability, and maintenance standards, creating risk for the entire product.

Qual a gravidade do CWE-1357?

A MITRE não publicou uma classificação de probabilidade de exploração para esta fraqueza. Trate-a como impacto médio até o seu modelo de ameaças provar o contrário.

Que linguagens ou plataformas são afetadas pelo CWE-1357?

MITRE lists the following affected platforms: Not Architecture-Specific, Not Technology-Specific, ICS/OT.

Como posso prevenir o CWE-1357?

For each component, ensure that its supply chain is well-controlled with sub-tier suppliers using best practices. For third-party software components such as libraries, ensure that they are developed and actively maintained by reputable vendors. Maintain a Bill of Materials for all components and sub-components of the product. For software, maintain a Software Bill of Materials (SBOM). According to [REF-1247], "An SBOM is a formal, machine-readable inventory of software components and…

Como é que o Plexicus deteta e corrige o CWE-1357?

O motor SAST do Plexicus correlaciona a assinatura de fluxo de dados do CWE-1357 em cada commit. Quando é encontrada uma correspondência, o nosso agente Codex Remedium abre um PR de correção com o código corrigido, testes e um resumo de uma linha para o revisor.

Onde posso saber mais sobre o CWE-1357?

A MITRE publica a definição canónica em https://cwe.mitre.org/data/definitions/1357.html. Pode também consultar a documentação da OWASP e do NIST para orientações adjacentes.

Fraquezas relacionadas

Weaknesses related to CWE-1357

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Architecture with Number of Horizontal Layers Outside of Expected Range

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Invokable Control Element with Large Number of Outward Calls

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Insufficient Technical Documentation

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CWE-1061 Irmão

Insufficient Encapsulation

This weakness occurs when a software component exposes too much of its internal workings, such as data structures or implementation logic.…

CWE-1065 Irmão

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 Irmão

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 Irmão

Inconsistency Between Implementation and Documented Design

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

Recursos

Further reading

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