What is the HttpOnly setting on cookies primarily used for?

What is the HttpOnly setting on cookies primarily used for?

An HttpOnly Cookie is a tag added to a browser cookie that prevents client-side scripts from accessing data. Using the HttpOnly tag when generating a cookie helps mitigate the risk of client-side scripts accessing the protected cookie, thus making these cookies more secure.

How do you implement HttpOnly cookies?

Implementation Procedure in Apache

1. Ensure you have mod_headers.so enabled in Apache HTTP server.
2. Add following entry in httpd.conf. Header edit Set-Cookie ^(.*)$ $1;HttpOnly;Secure;SameSite=None.
3. Restart Apache HTTP server to test.

How do you fix cookie does not contain the secure attribute?

To prevent this, a “secure” flag can be set on the cookie and the flag will tell the browser to only transmit cookies over HTTPS connection, not over HTTP connection. Now if you scan your application again, the Information Disclosure vulnerability warning should go away.

Why are HttpOnly and secure flags not added for the second cookie?

The second one does not have httponly and secure flags set. Please refer to the below output: Why are the httponly and secure flags not added for the second cookie? Setting the JSESSIONID is the responsibility of whatever servlet container is running your web application.

How to set HttpOnly and session cookie for Java Web?

If you’re using Servlets 3.0, you can actually instruct the app server to ensure that all session cookies are HttpOnly and Secure with the following fragments: This is a better approach than manually hacking on the cookies with a filter.

Which is the most important cookie in HttpOnly?

However, in many webapps, the most important cookie is the session identifier, which is automatically set by the container as the JSESSIONID cookie. If you only use this cookie, you can write a ServletFilter to re-set the cookies on the way out, forcing JSESSIONID to HttpOnly.

How to overwrite the Set Cookie response header in Java?

For Java Enterprise Edition versions prior to JEE 6 a common workaround is to overwrite the SET-COOKIE HTTP response header with a session cookie value that explicitly appends the HttpOnly flag: In this context, overwriting, despite appropriate for the HttpOnly flag, is discouraged because the JSESSIONID may have been set with other flags.