mcp-server-semgrep/semgrep-rules/kotlin/lang/security/cookie-missing-httponly.yaml

MCP Server for Semgrep Integration - static code analysis with AI

rules:
- id: cookie-missing-httponly
  metadata:
    cwe:
    - "CWE-1004: Sensitive Cookie Without 'HttpOnly' Flag"
    owasp:
    - A05:2021 - Security Misconfiguration
    source-rule-url: https://find-sec-bugs.github.io/bugs.htm#HTTPONLY_COOKIE
    category: security
    technology:
    - kt
    references:
    - https://owasp.org/Top10/A05_2021-Security_Misconfiguration
    subcategory:
    - audit
    likelihood: LOW
    impact: LOW
    confidence: LOW
  message: >-
    A cookie was detected without setting the 'HttpOnly' flag. The 'HttpOnly' flag
    for cookies instructs the browser to forbid client-side scripts from reading the
    cookie. Set the 'HttpOnly' flag by calling 'cookie.setHttpOnly(true);'
  severity: WARNING
  languages: [kt]
  patterns:
  - pattern-not-inside: |
      $COOKIE.setValue("")
      ...
  - pattern-either:
    - pattern: $COOKIE.setHttpOnly(false)
    - patterns:
      - pattern-not-inside: |
          $COOKIE.setHttpOnly(...)
          ...
      - pattern: $RESPONSE.addCookie($COOKIE)