Is it secure to use Vue Router for navigation?

Question

Is it secure to use Vue Router for navigation?

I am currently working on a web project using Vue, and I have noticed that the following code snippet works when executed in the console:

document.getElementById('app').__vue__.$router.push("some_route")

Despite having meta tags defined in the beforeEach navigation guard (requireAuth), certain routes can still be accessed by unauthorized users. In my Flask API, I return a token and a role for validation purposes. While entering the URL directly in the address bar triggers authentication, accessing the same route through the console bypasses this verification process.

router.beforeEach(async (to, from, next) => {
  if(to.matched.some(record => record.meta.requiresAuth)){
    let user = JSON.parse(localStorage.getItem('user')) // User is a JSON with a JWT token

    if (user && user.token){
      
      await user_service.isLogged(to.path).then(response => {
       // Wait for a response from the server to validate the token
        switch (response.status){
          case 200:
            next()
            break;

          case 401:
            next({path: '/login'})
            break;
          
          case 403:
            next({path: '/403'})
            break;
        }
      })
    } else {
      next({path: '/login'})
    }

  }
  next()
})

Your feedback and suggestions are highly appreciated. Thank you!

javascript vue.js console vue-router

Answer 1

Answer №1

It's crucial to ensure that the final next() call is not obstructed, as it renders your navigation guard ineffective.

To address this, you can encapsulate it within an else clause, like so:

if(to.matched.some(record => record.meta.requiresAuth)) {
  // your code
} else {
  next()
}

Alternatively, modify your code to include appropriate exit points using return:

router.beforeEach(async (to, from, next) => {
  if(to.matched.some(record => record.meta.requiresAuth)){
    let user = JSON.parse(localStorage.getItem('user'))

    if (user && user.token){
      await user_service.isLogged(to.path).then(response => {
       //wait for a response from the server if the token is valid
        switch (response.status){
          case 200:
            return next()
          case 403:
            return next({path: '/403'})
          case 401:
          default:
            return next({path: '/login'})
        }
      })
    } else {
      return next({path: '/login'})
    }
  }
  next()
})

Answer 2

It's crucial to ensure that the final next() call is not obstructed, as it renders your navigation guard ineffective.

To address this, you can encapsulate it within an else clause, like so:

if(to.matched.some(record => record.meta.requiresAuth)) {
  // your code
} else {
  next()
}

Alternatively, modify your code to include appropriate exit points using return:

router.beforeEach(async (to, from, next) => {
  if(to.matched.some(record => record.meta.requiresAuth)){
    let user = JSON.parse(localStorage.getItem('user'))

    if (user && user.token){
      await user_service.isLogged(to.path).then(response => {
       //wait for a response from the server if the token is valid
        switch (response.status){
          case 200:
            return next()
          case 403:
            return next({path: '/403'})
          case 401:
          default:
            return next({path: '/login'})
        }
      })
    } else {
      return next({path: '/login'})
    }
  }
  next()
})

Is it secure to use Vue Router for navigation?

Answer №1

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