Received the following email:
Hello Team,
I have identified a security issue in your system related to the
vulnerability 'Missing X-Frame-Options Header Vulnerability'.
Vulnerability Details:
- Vulnerability Type: Missing X-Frame-Options Header Vulnerability
- Affected URL: https://helth.app/
- Severity: Medium
Description: A security vulnerability has been detected in your
system. This vulnerability is related to 'Missing X-Frame-Options
Header Vulnerability', which may expose your system to potential
issues.
Impact: Impact:
- Clickjacking: Attackers may embed your website in a malicious frame
and trick users into interacting with it.
- Data Theft: Sensitive information might be exposed through
malicious user interactions.
- Loss of Trust: Users may lose trust in your site's security if exploited.
Recommendation: Recommendation:
- Add the 'X-Frame-Options' HTTP header to prevent embedding your
site in a frame.
- Configure it to 'DENY' or 'SAMEORIGIN' to block all or limit the
framing to the same origin.
- Test your site's security headers using tools like securityheaders.com.
Proof of Concept (PoC):
Here is an HTML code to demonstrate the vulnerability:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Clickjacking PoC</title>
<style>
/* Full-screen iframe */
iframe {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
opacity: 0.01; /* Invisible iframe */
}
.content {
position: relative;
z-index: 999; /* Visible content on top */
text-align: center;
margin-top: 100px;
}
</style>
</head>
<body>
<div class="content">
<h1>Welcome to My Site</h1>
<p>If you click the button below, you're actually clicking
a hidden button on another website!
Click Me
<!-- Malicious iframe embedding the vulnerable site -->
<iframe src="helth.app" frameborder="0"></iframe> <!--
Replace with the vulnerable domain -->
Best Regards,
Security Team
Seems spammy but it's not wrong. To prevent this, I could do something in +layout.ts like:
import type {LayoutLoad} from './$types';
export const prerender = true;
export const ssr = false;
export const csr = true;
export const load: LayoutLoad = ({ setHeaders ]) => {
setHeaders({
'X-Frame-Options': 'DENY'
});
}
But this would require a backend and the site is completely prerendered. I'd have to disable the prerendering and enable SSR which kind of goes against the whole thing with this app.
Received the following email:
Seems spammy but it's not wrong. To prevent this, I could do something in
+layout.tslike:But this would require a backend and the site is completely prerendered. I'd have to disable the prerendering and enable SSR which kind of goes against the whole thing with this app.