Missing Authentication for Critical Function (CWE-306)

Missing Authentication for Critical Function

The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

As data traverses trust boundaries, the data should be validated before being processed. When authentication is not applied to critical functions, attackers can invoke these functions without proving their identity.

普及度

高

頻繁に悪用される

影響度

ハイ

6 件の重大度ハイのルール

予防

文書化済み

6 件の修正例

2 予防

この脆弱性の修正方法

🐍 Python すべて表示 Python 詳細 →

Django View Missing Authentication HIGH

Add @login_required or @permission_required decorator to all protected views

+7 -5 python

- from django.http import JsonResponse
- from .models import Document
- 
- def delete_document(request, doc_id):
-     doc = Document.objects.get(id=doc_id)
+ from django.contrib.auth.decorators import login_required
+ from django.http import JsonResponse
+ from .models import Document
+ 
+ @login_required
+ def delete_document(request, doc_id):
+     doc = Document.objects.get(id=doc_id, owner=request.user)
      doc.delete()
      return JsonResponse({'status': 'deleted'})

FastAPI Endpoint Missing Authentication HIGH

Add authentication using FastAPI Depends() dependency injection

+10 -6 python

- from fastapi import FastAPI
- 
- app = FastAPI()
- 
- @app.delete("/users/{user_id}")
- async def delete_user(user_id: int):
+ from fastapi import FastAPI, Depends
+ from myapp.auth import get_current_user
+ 
+ app = FastAPI()
+ 
+ @app.delete("/users/{user_id}")
+ async def delete_user(
+     user_id: int,
+     current_user: User = Depends(get_current_user)
+ ):
      await User.filter(id=user_id).delete()
      return {"deleted": user_id}

🐹 Go すべて表示 Go 詳細 →

Echo Missing JWT Middleware HIGH

Add Echo JWT middleware to protect API endpoints

+13 -5 go

  package main
  
- import "github.com/labstack/echo/v4"
- 
- func main() {
-     e := echo.New()
-     e.POST("/api/transfer", transferHandler)
+ import (
+     "os"
+     "github.com/labstack/echo/v4"
+     echojwt "github.com/labstack/echo-jwt/v4"
+ )
+ 
+ func main() {
+     e := echo.New()
+     api := e.Group("/api")
+     api.Use(echojwt.WithConfig(echojwt.Config{
+         SigningKey: []byte(os.Getenv("JWT_SECRET")),
+     }))
+     api.POST("/transfer", transferHandler)
      e.Start(":8080")
  }

Fiber Missing JWT Middleware HIGH

Add Fiber JWT middleware to protect API endpoints

+13 -5 go

  package main
  
- import "github.com/gofiber/fiber/v2"
- 
- func main() {
-     app := fiber.New()
-     app.Post("/api/transfer", transferHandler)
+ import (
+     "os"
+     "github.com/gofiber/fiber/v2"
+     jwtware "github.com/gofiber/contrib/jwt"
+ )
+ 
+ func main() {
+     app := fiber.New()
+     api := app.Group("/api")
+     api.Use(jwtware.New(jwtware.Config{
+         SigningKey: jwtware.SigningKey{Key: []byte(os.Getenv("JWT_SECRET"))},
+     }))
+     api.Post("/transfer", transferHandler)
      app.Listen(":3000")
  }

Gin Missing JWT Middleware HIGH

Add JWT authentication middleware to protect API endpoints

+15 -5 go

  package main
  
- import "github.com/gin-gonic/gin"
- 
- func main() {
-     r := gin.Default()
-     r.POST("/api/transfer", transferHandler)
+ import (
+     "os"
+     "github.com/gin-gonic/gin"
+     jwt "github.com/appleboy/gin-jwt/v2"
+ )
+ 
+ func main() {
+     r := gin.Default()
+     auth, _ := jwt.New(&jwt.GinJWTMiddleware{
+         Realm: "api",
+         Key:   []byte(os.Getenv("JWT_SECRET")),
+     })
+     api := r.Group("/api")
+     api.Use(auth.MiddlewareFunc())
+     api.POST("/transfer", transferHandler)
      r.Run(":8080")
  }

🟨 JavaScript すべて表示 JavaScript 詳細 →

NestJS Endpoint Missing Authentication Guard HIGH

Add @UseGuards decorator with authentication guard at controller or method level

+5 -3 javascript

- import { Controller, Get, Post, Body, Param } from '@nestjs/common';
- 
- @Controller('users')
+ import { Controller, Get, Post, Body, Param, UseGuards } from '@nestjs/common';
+ import { JwtAuthGuard } from '../auth/jwt-auth.guard';
+ 
+ @Controller('users')
+ @UseGuards(JwtAuthGuard)
  export class UsersController {
    @Get(':id')
    findOne(@Param('id') id: string) {
      return this.usersService.findOne(id);
    }
  
    @Post()
    create(@Body() dto: CreateUserDto) {
      return this.usersService.create(dto);
    }
  }

3 検出

コードの脆弱性を見つける

Shoulderを使用してコードのMissing Authentication for Critical Functionパターンをスキャンしましょう。 6 ルール.

ターミナル

# Scan with Shoulder CLI
npx @shoulderdev/cli trust --cwe=306

# Or scan entire project
npx @shoulderdev/cli trust .

検出ルール (6)

🐹 Go 3 rules

Echo Missing JWT Middleware HIGH

API endpoints lack JWT authentication middleware protection.

Fiber Missing JWT Middleware HIGH

API endpoints lack JWT authentication middleware protection.

Gin Missing JWT Middleware HIGH

API endpoints lack JWT authentication middleware protection.

🐍 Python 2 rules

Django View Missing Authentication HIGH

Detects Django views that should require authentication but lack @login_required, @permission_required, or other authentication decorators.

FastAPI Endpoint Missing Authentication HIGH

Detects FastAPI endpoints that perform sensitive operations without authentication via Depends() dependency injection.

🔷 Typescript 1 rules

NestJS Endpoint Missing Authentication Guard HIGH

Endpoints without @UseGuards or @Public decorators are accessible to unauthenticated users, enabling unauthorized access.

4 警告サイン

コードレビューで注目すべき点

これらのパターンはMissing Authentication for Critical Functionの潜在的な脆弱性を示しています。コードレビューとセキュリティ監査中に探してください。

🟠

View handles sensitive operations without authentication decorator django-missing-authentication

🟠

Django views that should require authentication but lack @login_required, @permission_required, or o django-missing-authentication

🟠

Endpoint performs sensitive operations without Depends(get_current_user) or similar auth fastapi-missing-authentication

🟠

FastAPI endpoints that perform sensitive operations without authentication via Depends() dependency fastapi-missing-authentication

🟠

Gin application missing JWT authentication middleware go-gin-missing-jwt

🟠

NestJS endpoint has no @UseGuards() decorator for authentication nestjs-missing-auth-guard

🔍

コードベースをスキャン: Missing Authentication for Critical Function

Shoulder CLI はコードベース全体から脆弱なパターンを見つけます。

npx shoulder trust すべてのルールを表示