How to securely set a cookie on another?
I’m aware of a few approaches: hub sets the cookie on example.com This works, but the cookie propagates to other subdomains. Also a risky subdomain like lab could set the cookie. learn provides a setCookie controller.
What’s the best way to protect your cookies?
Strict option prevents sending cookies from different origin altogether. While this is safe, it can be really painful for the users. For example, if you click a link to a social media or GitHub, you would be redirected there without being logged in and you would need to authenticate again. The second option, lax, is more forgiving.
How does cross-site request forgery ( CSRF ) attack work?
Cross-Site Request Forgery (CSRF) is a type of attack that occurs when a malicious web site, email, blog, instant message, or program causes a user’s web browser to perform an unwanted action on a trusted site when the user is authenticated. A CSRF attack works because browser requests automatically include all cookies including session cookies.
How is SameSite used to mitigate CSRF attacks?
SameSite is a cookie attribute (similar to HTTPOnly, Secure etc.) which aims to mitigate CSRF attacks. It is defined in RFC6265bis. This attribute helps the browser decide whether to send cookies along with cross-site requests. Possible values for this attribute are Lax, Strict, or None.
Is it possible to set cookies for another domain?
Setting cookies for another domain is not possible. If you want to pass data to another domain, you can encode this into the url. In case you have a.my-company.com and b.my-company.com instead of just a.com and b.com you can issue a cookie for .my-company.com domain – it will be accepted and sent to both of the domains.
When do cookies become session cookies in http?
The maximum lifetime of the cookie as an HTTP-date timestamp. See Date for the required formatting. If unspecified, the cookie becomes a session cookie. A session finishes when the client shuts down, and session cookies will be removed.
How are cookies sent from the server to the user?
The Set-Cookie HTTP response header is used to send cookies from the server to the user agent, so the user agent can send them back to the server later. For more information, see the guide on HTTP cookies. A can be any US-ASCII characters, except control characters, spaces, or tabs.