mcp-server-semgrep/semgrep-rules/php/laravel/security/laravel-cookie-same-site.yaml

MCP Server for Semgrep Integration - static code analysis with AI

rules:
- id: laravel-cookie-same-site
  patterns:
  - pattern: |
      'cookie'
  - pattern-inside: |
      return [
        ...,
        'cookie' => env(...),
        ...
      ];
  - pattern-not-inside: |
      return [
        ...,
        'same_site' => 'lax',
        ...
      ];
  - pattern-not-inside: |
      return [
        ...,
        'same_site' => 'strict',
        ...
      ];
  - pattern-not-inside: |
      return [
        ...,
        'same_site' => env('$NAME', $DEFAULT),
        ...
      ];
  paths:
    include:
    - '*session.php'
  message: >-
    Found a configuration file where the same_site attribute is not set to 'lax' or 'strict'.
    Setting 'same_site' to 'lax' or 'strict' restricts cookies to a first-party or same-site context,
    which will protect your cookies and prevent CSRF.
  languages:
  - php
  severity: ERROR
  metadata:
    category: security
    cwe:
    - 'CWE-1275: Sensitive Cookie with Improper SameSite Attribute'
    owasp:
    - A01:2021 - Broken Access Control
    technology:
    - php
    - laravel
    references:
    - https://github.com/OWASP/CheatSheetSeries/blob/master/cheatsheets/Laravel_Cheat_Sheet.md
    subcategory:
    - audit
    likelihood: LOW
    impact: LOW
    confidence: LOW