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23 lines
879 B
HTML
23 lines
879 B
HTML
<!doctype html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<title>Worker WebSocket SSRF</title>
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</head>
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<body>
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<h1>Worker WebSocket SSRF</h1>
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<script type="application/javascript">
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// A Web Worker is a separate CDP target, so its WebSocket handshake is
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// not observed by listenForEventWebSocketCreated (which listens on the
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// page target). Enforcement must therefore not rely on that listener:
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// the pinning proxy sees every handshake regardless of the originating
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// context and severs the connection.
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const source =
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'new WebSocket("ws://127.0.0.1:9999/ws-from-worker");' +
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'new WebSocket("ws://169.254.169.254:80/ws-from-worker-metadata");';
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const blob = new Blob([source], { type: "application/javascript" });
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new Worker(URL.createObjectURL(blob));
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</script>
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</body>
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</html>
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