Quick Answer: How secure is cookie based authentication?

Is cookie-based authentication safe?

It’s very secure. Session ID is simply a random number. You don’t have to worry about compromised key or salt. The cookie can be easily revoked from server.

Are cookies more secure than JWT?

1 Answer. There are several reasons people say JWTs are more secure. … JWT can either be stored in a cookie or Web Storage( local/session Storage ). If you are not storing your JWTs in a cookie, then you are not vulnerable to CSRF.

How do you protect authentication cookies?


  1. Limit the amount of sensitive information stored in the cookie.
  2. Limit the subdomains and paths to prevent interception by another application.
  3. Enforce SSL so the cookie isn’t sent in cleartext.
  4. Make the cookie HttpOnly so its not accessible to javascript.

Is it safe to store token in cookie?

Local storage is vulnerable because it’s easily accessible using JavaScript and an attacker can retrieve your access token and use it later. However, while httpOnly cookies are not accessible using JavaScript, this doesn’t mean that by using cookies, you are safe from XSS attacks involving your access token.

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How do Auth cookies work?

Cookie Authentication

  1. The client sends a login request to the server.
  2. On the successful login, the server response includes the Set-Cookie header that contains the cookie name, value, expiry time and some other info. …
  3. The client needs to send this cookie in the Cookie header in all subsequent requests to the server.

Is JWT better than session?

In modern web applications, JWTs are widely used as it scales better than that of a session-cookie based because tokens are stored on the client-side while the session uses the server memory to store user data, and this might be an issue when a large number of users are accessing the application at once.

What is the problem when using cookies for authentication?

Limitations of cookie-based authentication

It is vulnerable to Cross-site request forgery attack. It often needs other security measures such as CSRF tokens for protection. You need to store the session data in a database or keep it in memory on the server.

Are cookies safer than localStorage?

Although cookies still have some vulnerabilities, it’s preferable compared to localStorage whenever possible. … Both localStorage and cookies are vulnerable to XSS attacks, but it’s harder for the attacker to do the attack when you’re using httpOnly cookies.

Which is more secure cookies or session?

Actually, technically cookies are more secure than sessions are. Since sessions are based on cookies they can only be as secure as cookies are, and almost always less secure than that. However, unless you have a very good implementation, sessions will be safer for you.

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How can you tell if a flag is Secure?

Press F12, go to the network tab, and then press Start Capturing. Back in IE then open the page you want to view. Back in the F12 window you show see all the individual HTTP requests, select the one that’s the page or asset you’re checking the cookies on and double click on it.

How do I check if my Chrome cookie is Secure?

Inspect Cookies in Google Chrome

  1. Choose ‘Inspect. ‘ After you right-click, a window will appear giving you several options. …
  2. Choose the Applications tab. …
  3. Select ‘Cookies. …
  4. Check installed cookies. …
  5. Choose ‘Inspect Element. …
  6. Click on ‘Cookies.

Do cookies need to be Secure?

Servers that require a higher level of security SHOULD use the Cookie and Set-Cookie headers only over a secure channel. When using cookies over a secure channel, servers SHOULD set the Secure attribute (see Section 4.1. 2.5) for every cookie.

Can JWT be stored in cookie?

A JWT needs to be stored in a safe place inside the user’s browser. … To keep them secure, you should always store JWTs inside an httpOnly cookie. This is a special kind of cookie that’s only sent in HTTP requests to the server. It’s never accessible (both for reading or writing) from JavaScript running in the browser.

Which is better LocalStorage or cookie?

While these storage options have their positives and negatives, they both have applications in modern web development. Cookies are smaller and send server information back with every HTTP request, while LocalStorage is larger and can hold information on the client side.

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Should I save access token database?

A lot of these answers are outdated as they were written before the widespread adoption of JSON Web Tokens (JWT). You should treat an access_token as good as having an email/password pair in hand, so it needs to be stored and transmitted securely.