<!-- CVE-2025-12728 PoC - UI Spoofing in Omnibox (Android)
This is a demonstration of UI spoofing vulnerability in Chrome Android Omnibox.
Note: This PoC is for educational and security testing purposes only.
Vulnerability: Inappropriate implementation in Omnibox allows UI spoofing
Attack Vector: Crafted HTML page + specific UI gestures
Target: Google Chrome on Android prior to 142.0.7444.137
-->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>CVE-2025-12728 UI Spoofing PoC</title>
<style>
body {
font-family: Arial, sans-serif;
padding: 20px;
background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
color: white;
min-height: 100vh;
margin: 0;
}
.container {
max-width: 800px;
margin: 0 auto;
background: rgba(255,255,255,0.1);
padding: 30px;
border-radius: 15px;
backdrop-filter: blur(10px);
}
h1 {
text-align: center;
margin-bottom: 30px;
}
.warning {
background: rgba(255,0,0,0.3);
border-left: 4px solid #ff4444;
padding: 15px;
margin: 20px 0;
border-radius: 5px;
}
.spoof-indicator {
display: none;
position: fixed;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
background: white;
color: #333;
padding: 40px;
border-radius: 10px;
text-align: center;
box-shadow: 0 10px 40px rgba(0,0,0,0.3);
z-index: 10000;
}
.spoof-indicator.show {
display: block;
}
.instructions {
background: rgba(0,0,0,0.2);
padding: 20px;
border-radius: 10px;
margin: 20px 0;
}
.instructions h3 {
margin-top: 0;
}
button {
background: #4CAF50;
color: white;
border: none;
padding: 15px 30px;
font-size: 16px;
border-radius: 5px;
cursor: pointer;
margin: 10px 5px;
transition: background 0.3s;
}
button:hover {
background: #45a049;
}
button.secondary {
background: #2196F3;
}
button.secondary:hover {
background: #1976D2;
}
</style>
</head>
<body>
<div class="container">
<h1>🔒 CVE-2025-12728 PoC</h1>
<h2>Omnibox UI Spoofing - Google Chrome Android</h2>
<div class="warning">
⚠️ <strong>Educational Purpose Only</strong><br>
This PoC demonstrates the UI spoofing vulnerability in Chrome Android Omnibox.
Do not use for malicious purposes.
</div>
<div class="instructions">
<h3>Vulnerability Details</h3>
<ul>
<li><strong>CVE ID:</strong> CVE-2025-12728</li>
<li><strong>Component:</strong> Omnibox in Google Chrome on Android</li>
<li><strong>Severity:</strong> Medium (CVSS 4.2)</li>
<li><strong>Affected:</strong> Chrome Android < 142.0.7444.137</li>
<li><strong>Attack Type:</strong> UI Spoofing via crafted HTML + specific UI gestures</li>
</ul>
</div>
<div class="instructions">
<h3>How to Test</h3>
<ol>
<li>Open this page in Google Chrome on Android</li>
<li>Click the "Trigger UI Spoof" button below</li>
<li>Perform the requested UI gestures</li>
<li>Observe the Omnibox address bar behavior</li>
<li>Check if the URL displayed matches the actual page origin</li>
</ol>
<p><em>Note: The actual exploitation requires specific gesture sequences that trigger the Omnibox vulnerability. This PoC demonstrates the attack surface.</em></p>
</div>
<button onclick="simulateSpoof()">Trigger UI Spoof Demo</button>
<button class="secondary" onclick="showInstructions()">View Technical Details</button>
<button onclick="resetDemo()">Reset</button>
<div id="status"></div>
</div>
<div id="spoofIndicator" class="spoof-indicator">
<h2>🔐 Secure Login</h2>
<p>Please verify your identity:</p>
<div style="text-align: left; margin: 20px 0;">
<p>👤 Username: <input type="text" placeholder="Enter username" style="padding: 8px; border-radius: 4px; border: 1px solid #ccc;"></p>
<p>🔑 Password: <input type="password" placeholder="Enter password" style="padding: 8px; border-radius: 4px; border: 1px solid #ccc;"></p>
</div>
<button onclick="collectData()">Login</button>
<p style="font-size: 12px; color: #666; margin-top: 15px;">
Note: In actual attack, Omnibox would show fake URL like https://google.com
</p>
</div>
<script>
// Simulate the UI spoofing attack mechanism
// In real attack, this would manipulate Omnibox via browser vulnerabilities
let gestureCount = 0;
const requiredGestures = 3;
function simulateSpoof() {
gestureCount++;
const status = document.getElementById('status');
status.innerHTML = `
<div style="background: rgba(255,255,255,0.2); padding: 15px; border-radius: 5px; margin-top: 20px;">
<p>🎯 Gesture ${gestureCount}/${requiredGestures} recorded</p>
<p>Please perform: ${getNextGesture()}</p>
<div style="margin-top: 10px;">
<button onclick="performGesture('scroll')">📜 Scroll Down</button>
<button onclick="performGesture('tap')">👆 Double Tap</button>
<button onclick="performGesture('pinch')">🤏 Pinch Zoom</button>
</div>
</div>
`;
if (gestureCount >= requiredGestures) {
triggerSpoof();
}
}
function getNextGesture() {
const gestures = ['Fast scroll down', 'Double tap anywhere', 'Pinch to zoom out'];
return gestures[gestureCount % gestures.length];
}
function performGesture(type) {
// Simulate gesture recognition
simulateSpoof();
}
function triggerSpoof() {
// Display fake login form (simulating the spoofed UI)
document.getElementById('spoofIndicator').classList.add('show');
document.getElementById('status').innerHTML = `
<div style="background: rgba(255,0,0,0.3); padding: 15px; border-radius: 5px; margin-top: 20px;">
<h3>⚠️ UI Spoofing Attack Simulated</h3>
<p>The fake login form above demonstrates what an attacker could display.</p>
<p>In a real attack on vulnerable Chrome Android:</p>
<ul>
<li>Omnibox would show fake URL (e.g., https://google.com)</li>
<li>User would believe they're on legitimate site</li>
<li>Credentials entered would be stolen</li>
</ul>
</div>
`;
}
function collectData() {
alert('This is a PoC. In a real attack, credentials would be sent to attacker server.');
}
function showInstructions() {
alert('CVE-2025-12728 Technical Details:\n\n' +
'1. Attacker creates malicious HTML page\n' +
'2. User visits page in vulnerable Chrome Android\n' +
'3. Page triggers specific UI gesture sequences\n' +
'4. Omnibox displays spoofed URL\n' +
'5. User tricked into entering sensitive data\n\n' +
'Fix: Update Chrome Android to version 142.0.7444.137 or later');
}
function resetDemo() {
gestureCount = 0;
document.getElementById('spoofIndicator').classList.remove('show');
document.getElementById('status').innerHTML = '';
}
// Track user interaction for PoC demonstration
document.addEventListener('touchstart', function(e) {
// Track touch events as potential gesture input
console.log('Touch event detected for gesture analysis');
});
document.addEventListener('scroll', function(e) {
// Track scroll events
console.log('Scroll event detected');
});
</script>
</body>
</html>