It was observed that the application was not sending security directives to the client's browser like Content Security Policy (1), X-XSS Protection (2), HSTS (HTTP Strict Transport Security) (3), and X-Content-Type-Options (4).
Mainly, the control of these headers is maintained and configured at the Web Server level such as IIS (5) and Apache (6).
Siteminder doesn't have a direct and specific configuration to implement:
Content Security Policy:
The content-security-policy HTTP header provides an additional layer of security. This policy helps prevent attacks such as Cross Site Scripting (XSS) and other code injection attacks by defining content sources which are approved and thus allowing the browser to load them.
The X-XSS-protection header is designed to enable the cross-site scripting (XSS) filter built into modern web browsers. This is usually enabled by default but using it will enforce it. It is supported by Internet Explorer 8+, Chrome, and Safari.
HTTP Strict Transport Security (HSTS):
The strict-transport-security header is a security enhancement that restricts web browsers to access web servers solely over HTTPS. This ensures the connection cannot be establish through an insecure HTTP connection which could be susceptible to attacks.
The x-content-type-options header prevents Internet Explorer and Google Chrome from sniffing a response away from the declared content-type. This helps reduce the danger of drive-by downloads and helps treat the content properly.