mcp-server-semgrep/semgrep-rules/csharp/lang/security/stacktrace-disclosure.yaml

MCP Server for Semgrep Integration - static code analysis with AI

rules:
- id: stacktrace-disclosure
  patterns:
  - pattern: $APP.UseDeveloperExceptionPage(...);
  - pattern-not-inside: |
      if ($ENV.IsDevelopment(...)) {
        ...
      }
  message: >-
    Stacktrace information is displayed in a non-Development environment.
    Accidentally disclosing sensitive stack trace information in a production
    environment aids an attacker in reconnaissance and information gathering.
  metadata:
    category: security
    technology:
    - csharp
    owasp:
    - A06:2017 - Security Misconfiguration
    - A04:2021 - Insecure Design
    cwe:
    - 'CWE-209: Generation of Error Message Containing Sensitive Information'
    references:
    - https://cwe.mitre.org/data/definitions/209.html
    - https://owasp.org/Top10/A04_2021-Insecure_Design/
    subcategory:
    - audit
    likelihood: LOW
    impact: LOW
    confidence: HIGH
  languages:
  - csharp
  severity: WARNING