Contents
- 1 How do you make Aspxauth cookies secure?
- 2 How can I set the secure flag on an ASP net session cookie?
- 3 How do I mark session cookies secure?
- 4 What is Requiressl true?
- 5 What is HttpOnly cookie?
- 6 How to set the Secure flag for cookies in an ASP.NET MVC website?
- 7 Why is the Secure flag not set to cookies?
- 8 How to restrict forms authentication cookies to SSL channels?
To prevent forms authentication cookies from being captured and tampered with while crossing the network, ensure that you use SSL with all pages that require authenticated access and restrict forms authentication tickets to SSL channels by setting requireSSL=”true” on the element.
- +1 To clarify, this is what you should add to the web.config to set the secure flag on the auth cookie to true – Tr1stan Apr 20 ’11 at 13:22.
- Note that this depends on your (server-level) configuration.
How do you set the secure and HttpOnly flag for all cookies in C#?
2 Answers
- Enable HttpOnly Flag in IIS. Edit the web.config file of your web application and add the following:
- Enable Secure Flag in IIS. It is better to use URL Rewrite and add the following to your web.config file:
Mark cookies as Secure Cookies. Add( new HttpCookie(“key”, “value”) { Secure = true, }); That’s it! Cookies are now only sent over HTTPS, making it impossible to intercept any cookies accidentally sent over HTTP (you still want to eliminate those calls if any).
What is Requiressl true?
Property Value true if SSL is required to return the forms-authentication cookie to the server; otherwise, false . The default is false .
What is cookie no HttpOnly flag?
Description: Cookie without HttpOnly flag set If the HttpOnly attribute is set on a cookie, then the cookie’s value cannot be read or set by client-side JavaScript.
An HttpOnly Cookie is a tag added to a browser cookie that prevents client-side scripts from accessing data. It provides a gate that prevents the specialized cookie from being accessed by anything other than the server.
How can I set the ‘secure’ flag for cookies in an ASP.NET MVC website? When I hit the website using an HTTP connection, it redirects to my login page (specifying the scheme as HTTPS). When the browser fetches this page, the response sets some cookies (the ASP.NET session cookie, and the request verification token for my login form):
Is the authentication cookie marked as secure in aspxauth?
One of the vulnerabilities reported was ASPXAUTH is not secure. When I checked on the cookie inspector, there are some cookies with Secure flag. But ASPXAUTH was not one of them. I did a bit of research, and set these flags below on the web.config Despite these settings, the authentication cookie is not marked as secure.
The additional information (e.g. the secure flag) is not sent. Those are instructions from the server to the client, and there is no need for the client to repeat the instructions back to the server.
To restrict forms authentication cookies to SSL channels set requireSSL=”true” on the element, as shown in the following code: By setting requireSSL=”true”, you set the secure cookie property that determines whether browsers should send the cookie back to the server.