CWE-922 Classe Incompleto

Insecure Storage of Sensitive Information

This vulnerability occurs when an application stores sensitive data—like credentials, personal information, or encryption keys—without enforcing proper access controls, allowing unauthorized users…

Definição

What is CWE-922?

This vulnerability occurs when an application stores sensitive data—like credentials, personal information, or encryption keys—without enforcing proper access controls, allowing unauthorized users to read or modify it.
When read permissions are too permissive, attackers can easily exfiltrate confidential data, leading to data breaches and compliance violations. Conversely, insufficient write controls let attackers alter or destroy critical information, which can corrupt application logic, cause service outages, or enable further system compromise. Preventing this requires implementing strict access policies, encrypting sensitive data at rest, and regularly auditing storage configurations. While SAST tools can flag insecure storage patterns, Plexicus uses AI to analyze context and generate precise remediation code, helping teams fix these flaws efficiently across their entire application portfolio.
Impacto no mundo real

Real-world CVEs caused by CWE-922

  • CVE-2009-2272

    password and username stored in cleartext in a cookie

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-922

  • 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.
Sinais de deteção

How to detect CWE-922

Automated Static Analysis High

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.)

Correção automática do Plexicus

O Plexicus deteta automaticamente o CWE-922 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-922?

This vulnerability occurs when an application stores sensitive data—like credentials, personal information, or encryption keys—without enforcing proper access controls, allowing unauthorized users to read or modify it.

Qual a gravidade do CWE-922?

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-922?

A MITRE não especificou as plataformas afetadas por este CWE — pode aplicar-se à maioria das stacks de aplicações.

Como posso prevenir o CWE-922?

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.

Como é que o Plexicus deteta e corrige o CWE-922?

O motor SAST do Plexicus correlaciona a assinatura de fluxo de dados do CWE-922 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-922?

A MITRE publica a definição canónica em https://cwe.mitre.org/data/definitions/922.html. Pode também consultar a documentação da OWASP e do NIST para orientações adjacentes.

Fraquezas relacionadas

Weaknesses related to CWE-922

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This vulnerability occurs when a program fails to properly close or release a system resource—like a file handle, database connection, or…

Recursos

Further reading

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