Do you know you can mitigate most common XSS attacks using HttpOnly and Secure flag with your cookie?
XSS is dangerous. By looking at an increasing number of XSS attacks daily, you must consider securing your web applications.
Without having HttpOnly and Secure flag in the HTTP response header, it is possible to steal or manipulate web application sessions and cookies.
It’s better to manage this within the application code. However, due to developers’ unawareness, it comes to Web Server administrators.
Implementation Procedure in Apache
Ensure you have mod_headers.so enabled in Apache HTTP server
Add following entry in httpd.conf
Header edit Set-Cookie ^(.*)$ $1;HttpOnly;Secure
Restart Apache HTTP server to test
Note: Header edit is not compatible with lower than Apache 2.2.4 version.
You can use the following to set the HttpOnly and Secure flag in lower than 2.2.4 version.
Header set Set-Cookie HttpOnly;Secure
Verification
You can either leverage the browser’s inbuilt developer tools to check the response header or use an online tool.
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