Cookies can have security attributes to protect them against various attacks. Let's evaluate each option to determine which attribute is not used to secure cookies:
* Option A ("HttpOnly"): The HttpOnly attribute prevents cookies from being accessed by JavaScript (e.g., via document.cookie). This mitigates XSS attacks that attempt to steal session cookies, making it a valid security attribute.
* Option B ("Secure"): The Secure attribute ensures that the cookie is only sent over HTTPS connections, preventing it from being transmitted over unencrypted HTTP. This protects against interception (e.g., in a man-in-the-middle attack), making it a valid security attribute.
* Option C ("Restrict"): There is no standard cookie attribute called Restrict. Cookie security attributes are well-defined (e.g., HttpOnly, Secure, SameSite), and Restrict does not exist in this context. This is not a valid attribute for securing cookies.
* Option D ("Same-Site"): The SameSite attribute (e.g., SameSite=Strict or SameSite=Lax)controls whether a cookie is sent with cross-site requests. It helps mitigate CSRF attacks by ensuring the cookie is only sent with same-site requests (or limited cross-site scenarios), making it a valid security attribute.
The correct answer is C, as Restrict is not a recognized cookie attribute, aligning with the CAP syllabus under
"Cookie Security" and "Session Management."References: SecOps Group CAP Documents - "Cookie Security Attributes," "Session Security," and "OWASP Session Management Cheat Sheet" sections.