CWE-11 Variante Borrador

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.

Definición

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 en el mundo real

Real-world CVEs caused by CWE-11

Todavía no hay CVEs públicos enlazados a esta CWE en el catálogo de MITRE.

Cómo lo explotan los atacantes

Ruta del atacante paso a paso

  1. 1

    Identifica una ruta de código que maneje entrada no confiable sin validación.

  2. 2

    Crea un payload que ejercite el comportamiento inseguro — inyección, traversal, overflow o abuso de lógica.

  3. 3

    Envía el payload a través de una solicitud normal y observa la reacción de la aplicación.

  4. 4

    Itera hasta que la respuesta filtre datos, ejecute código del atacante o escale privilegios.

Ejemplo de código vulnerable

Vulnerable XML

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

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

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.
Señales de detección

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.

Preguntas frecuentes

Frequently asked questions

¿Qué es 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.

¿Qué gravedad tiene CWE-11?

MITRE no ha publicado una calificación de probabilidad de explotación para esta debilidad. Trátala como de impacto medio hasta que tu modelo de amenazas demuestre lo contrario.

¿Qué lenguajes o plataformas se ven afectados por CWE-11?

MITRE lists the following affected platforms: ASP.NET.

¿Cómo puedo prevenir CWE-11?

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

¿Cómo detecta y corrige Plexicus CWE-11?

El motor SAST de Plexicus detecta la firma de flujo de datos para CWE-11 en cada commit. Cuando hay coincidencia, nuestro agente Codex Remedium abre un PR de corrección con el código corregido, las pruebas y un resumen de una línea para el revisor.

¿Dónde puedo aprender más sobre CWE-11?

MITRE publica la definición canónica en https://cwe.mitre.org/data/definitions/11.html. También puedes consultar la documentación de OWASP y NIST para guías relacionadas.

¿Listo para validar lo que importa?

Listo para validar lo que importa.

Plexicus es Proof-Driven AppSec: hallazgos validados, comprensión contextual y remediación revisada — anclada en evidencia, acotada contigo.

Calificación

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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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