GIAC Foundational Cybersecurity Technologies Practice Test

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What are the values that can be set in the X-Frame Options header?

Allow-FROM, Same Origin, Deny
Allow, Deny, Deny-ALL
Same Origin, Cross Origin, Allow-All
Origin, Allow, Deny

The correct answer is: Allow-FROM, Same Origin, Deny

The X-Frame-Options header is a security feature used to control whether a browser should be allowed to render a page in a `<frame>` or `<iframe>`. This header is important for defending against clickjacking attacks, which can trick users into interacting with a hidden interface. The values that can be set for the X-Frame-Options header include: - **DENY**: This value prevents any domain from framing the content, meaning that the page cannot be displayed in a frame at all. - **SAMEORIGIN**: This allows the page to be framed only if the request comes from the same origin as the content itself. This means that the content can be safely displayed in frames on the same site. - **ALLOW-FROM uri**: This option allows control over which domain can frame the content. However, it's worth noting that this value is less commonly supported across browsers than the other two. Recognizing these allowed values reinforces the understanding that the X-Frame-Options header is an essential mechanism for enhancing web application security, enabling developers to specify framing behavior effectively. The reference to "Allow-FROM" in the correct answer correctly aligns with one of the standard values with its proper context, despite limited support.