CWE-11 Variante Rascunho

ASP.NET Misconfiguration: Creating Debug Binary

Deploying an ASP.NET application with debug binaries enabled exposes detailed system information, which attackers can use to map your infrastructure and plan targeted exploits.

Definição

What is CWE-11?

Deploying an ASP.NET application with debug binaries enabled exposes detailed system information, which attackers can use to map your infrastructure and plan targeted exploits.
ASP.NET applications can be compiled into debug binaries, which are packed with internal diagnostic messages, stack traces, and sensitive system details. While invaluable for developers during the testing phase, these binaries become a significant liability if accidentally deployed to a live production server. In a production environment, these debug messages act as a roadmap for attackers, revealing application logic, server paths, and potential weak points. To maintain security, you must ensure your release builds are configured to compile without debug flags before deploying to any public-facing server.
Impacto no mundo real

Real-world CVEs caused by CWE-11

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 XML

The file web.config contains the debug mode setting. Setting debug to "true" will let the browser display debugging information.

Vulnerável XML
<?xml version="1.0" encoding="utf-8" ?>
  <configuration>
  	<system.web>
  		<compilation
  		defaultLanguage="c#"
  		debug="true"
  		/>
  		...
  	</system.web>
  </configuration>
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-11

  • System Configuration Avoid releasing debug binaries into the production environment. Change the debug mode to false when the application is deployed into production.
Sinais de deteção

How to detect CWE-11

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.)

CWE-11

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-11?

Deploying an ASP.NET application with debug binaries enabled exposes detailed system information, which attackers can use to map your infrastructure and plan targeted exploits.

Qual a gravidade do CWE-11?

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-11?

MITRE lists the following affected platforms: ASP.NET.

Como posso prevenir o CWE-11?

Avoid releasing debug binaries into the production environment. Change the debug mode to false when the application is deployed into production.

Como é que o Plexicus deteta e corrige o CWE-11?

O motor SAST do Plexicus correlaciona a assinatura de fluxo de dados do CWE-11 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-11?

A MITRE publica a definição canónica em https://cwe.mitre.org/data/definitions/11.html. Pode também consultar a documentação da OWASP e do NIST para orientações adjacentes.

Pronto para validar o que importa?

Pronto para validar o que importa.

O Plexicus é Proof-Driven AppSec: achados validados, compreensão contextual e remediação revisada — ancorada em evidência, escopada com você.

Qualificação

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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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