Is it secure to attach the password field to a data object property in Vue.js?

This particular inquiry has been bothering me lately.

Imagine I aim to create a login element for my application (using Vue), containing 2 specific input fields - one for the userID and the other for the password. The focus here is on the security of the password input field.

<input id="password" type="password" class="field-input">

I am aware that you can establish two-way binding with v-model (and one-way binding with v-bind), but the question at hand concerns whether it is advisable - or safe - to bind the password in that manner to the data object. Does this method entail storing the password as plain text in the data object? If this presents a security risk, is there an alternative approach?

Answer №1

How do you securely bind a password to a data object?

Certainly! As stated in the Vue guide

V-model is essentially a convenient shorthand for updating data on user input events, with special considerations for different input elements. For text and textarea types, it uses the value property and input event.

The following code example demonstrates using the data property:

data() {
  return {
    password: '',
  }
}

Essentially,

<input type="password" v-model="password">
is simplified notation for
<input type="password" v-bind:value="password" v-on:input="password = event.target.value">

This equates to instructing the system,

When there's an input event, update the value of the password property.

This approach only retains the password temporarily in memory until submission via a form (presumably).

Is this method secure?

Absolutely! By employing additional measures like utilizing input type as password to prevent eavesdropping during password entry, implementing HTTPS encryption for secure data transmission between client and server, submitting the password through a POST request with proper safeguards such as sanitization (trimming excess characters, escaping for protection against injection attacks), rigorous validation (creating complex passwords to deter guessing), hashing techniques (e.g., bcrypt or other reliable systems) for added security, storing the password in the server-side database, and adhering to best practices endorsed by OWASP, the process should remain safe.

To delve deeper into OWASP's authentication recommendations, refer to [this resource] ()

Doesn't this signify that the password resides in plain text within the data object?

Though stored momentarily in memory, unauthorized access is thwarted if transmitted through a well-validated and sanitized POST request over HTTPS, following the aforementioned precautions.

Answer №2

While it is technically possible, it is not recommended to store passwords on the client side.

Instead, consider using tokens for authentication. You can use JWT for added complexity and security measures. Generate a secure string of bytes, encode it as a string, then store it as a cookie or in localStorage on the client side. Send this token with all your requests.

When a user enters their username and password, send the credentials to an authorization API endpoint. If the credentials are valid, create a session in your database and link it to the secure token you generated. When a request is made, verify the session's validity and user association for authentication purposes.

Furthermore, make sure to utilize HTTPS and familiarize yourself with the concepts of authorization versus authentication.

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