CWE-546 Variante Rascunho

Suspicious Comment

This weakness occurs when code contains comments that flag potential issues, such as bugs, security gaps, or unfinished work, which can expose underlying problems or oversights.

Definição

What is CWE-546?

This weakness occurs when code contains comments that flag potential issues, such as bugs, security gaps, or unfinished work, which can expose underlying problems or oversights.
Comments like BUG, HACK, FIXME, TODO, or LITERAL are more than just notes; they act as red flags for developers and security reviewers. They often point directly to areas where security controls, input validation, or proper error handling are missing or incomplete, leaving the code vulnerable. While these comments are sometimes used during development, they become a risk if left in production code, as they can guide attackers to weak spots. Beyond security, these markers can indicate broader code quality issues, such as hard-coded credentials, performance bottlenecks, or the use of insecure methods like dynamic SQL instead of prepared statements. For a developer, systematically reviewing and addressing these comments is a critical step in hardening an application before release, as they serve as an internal map of potential weaknesses that need resolution.
Impacto no mundo real

Real-world CVEs caused by CWE-546

Ainda não há referências CVE públicas associadas a este CWE no catálogo da MITRE.

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 Java

The following excerpt demonstrates the use of a suspicious comment in an incomplete code block that may have security repercussions.

Vulnerável Java
if (user == null) {
```
// TODO: Handle null user condition.* 
  		}
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-546

  • Documentation Remove comments that suggest the presence of bugs, incomplete functionality, or weaknesses, before deploying the application.
Sinais de deteção

How to detect CWE-546

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.

CWE-546

Don't catalog this weakness. Prove it's reachable.

Plexicus turns CWE catalogs into evidence: every CWE-pattern is matched against your real code graph, reach is proven on a sandbox clone, and verified findings ship as reviewed PRs.

Perguntas frequentes

Frequently asked questions

O que é o CWE-546?

This weakness occurs when code contains comments that flag potential issues, such as bugs, security gaps, or unfinished work, which can expose underlying problems or oversights.

Qual a gravidade do CWE-546?

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-546?

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

Como posso prevenir o CWE-546?

Remove comments that suggest the presence of bugs, incomplete functionality, or weaknesses, before deploying the application.

Como é que o Plexicus deteta e corrige o CWE-546?

O motor SAST do Plexicus correlaciona a assinatura de fluxo de dados do CWE-546 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-546?

A MITRE publica a definição canónica em https://cwe.mitre.org/data/definitions/546.html. Pode também consultar a documentação da OWASP e do NIST para orientações adjacentes.

Fraquezas relacionadas

Weaknesses related to CWE-546

CWE-1078 Pai

Inappropriate Source Code Style or Formatting

This weakness occurs when source code violates established style guidelines for formatting, indentation, whitespace, or commenting, making…

CWE-1085 Irmão

Invokable Control Element with Excessive Volume of Commented-out Code

This weakness occurs when a callable function, method, or procedure contains a large amount of inactive, commented-out code within its…

CWE-1099 Irmão

Inconsistent Naming Conventions for Identifiers

This weakness occurs when a codebase uses mixed naming styles for elements like variables, functions, data types, or files, creating an…

CWE-1106 Irmão

Insufficient Use of Symbolic Constants

This weakness occurs when developers embed raw numbers or text strings directly in code instead of using named symbolic constants, making…

CWE-1107 Irmão

Insufficient Isolation of Symbolic Constant Definitions

This weakness occurs when a codebase uses symbolic constants (like named values for numbers or strings) but scatters their definitions…

CWE-1109 Irmão

Use of Same Variable for Multiple Purposes

This weakness occurs when a single variable is reused to handle multiple, unrelated tasks or to store different pieces of data throughout…

CWE-1113 Irmão

Inappropriate Comment Style

This weakness occurs when source code comments are written in a style or format that doesn't match the project's established standards or…

CWE-1114 Irmão

Inappropriate Whitespace Style

This weakness occurs when source code uses inconsistent or non-standard whitespace formatting, such as irregular indentation, spacing, or…

CWE-1115 Irmão

Source Code Element without Standard Prologue

This weakness occurs when source code files or modules lack a consistent, standardized header or prologue that the development team has…

Pronto para validar o que importa?

Pronto para validar o que importa.

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SAMPLE HANDOVER · ILLUSTRATIVE

Sample evidence handover

A trimmed view of what your team receives at the end of an AI Swarm Pentest engagement. Real engagements include full technical evidence, executive narrative, and a remediation plan.

VALIDATED FINDING Evidence attached

Server-Side Request Forgery in webhooks/receiver

demo-project/sample-app · src/webhooks/receiver.py:42

SeverityHigh CVSS 3.18.6 Priority79 Confirmedvia replay

Untrusted caller-supplied URLs reach an internal egress without an allowlist. Replayed in a sandbox against a fresh authorized target — the same control was validated to fail twice.

REVIEWER-READY REMEDIATION Merge-ready PR

Validate the target URL against an allowlist of permitted hostnames. Reject private/internal IP ranges. Enforce HTTPS only.

plexicus/remediation/webhooks-ssrf 3 changed · 0 new files
42resp = requests.get(target_url)
42+if not is_allowed_host(target_url):
43+  raise WebhookRejected(target_url)
44+resp = requests.get(target_url, timeout=5)
Every engagement hands over:
  • Executive briefing
  • Validated findings list
  • Merge-ready PRs
  • Compliance mapping (NIS2 · DORA · CRA)
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