SecureFlag

= Overview =

The secure flag is an option that can be set by the application server when sending a new cookie to the user within an HTTP Response. The purpose of the secure flag is to prevent cookies from being observed by unauthorized parties due to the transmission of a the cookie in clear text.

To accomplish this goal, browsers which support the secure flag will only send cookies with the secure flag when the request is going to a HTTPS page. Said in another way, the browser will not send a cookie with the secure flag set over an unencrypted HTTP request.

By setting the secure flag, the browser will prevent the transmission of a cookie over an unencrypted channel.

= Setting the Secure Flag =

ASP.NET


= Testing for the Secure Flag =

= Related Articles =

Testing for Cookie Attributes http://www.troyhunt.com/2011/11/owasp-top-10-for-net-developers-part-9.html