CVE-2024-7021
📋 TL;DR
This vulnerability allows attackers to create fake autofill UI elements in Chrome that appear legitimate, tricking users into entering sensitive information. It affects Chrome users on Windows who haven't updated to version 124.0.6367.60 or later. The attack requires user interaction with a malicious webpage.
💻 Affected Systems
- Google Chrome
📦 What is this software?
Chrome by Google
Google Chrome is the world's most popular web browser, used by over 3 billion users globally across Windows, macOS, Linux, Android, and iOS platforms. As a Chromium-based browser developed by Google, Chrome dominates the browser market with approximately 65% market share, making it a critical compon...
Learn more about Chrome →⚠️ Risk & Real-World Impact
Worst Case
Users could be tricked into entering passwords, credit card details, or other sensitive information into attacker-controlled forms, leading to credential theft and financial fraud.
Likely Case
Phishing attacks become more convincing as attackers can mimic legitimate Chrome autofill prompts, increasing success rates for credential harvesting.
If Mitigated
With updated Chrome and user awareness training, the risk is minimal as users would see legitimate autofill behavior and be suspicious of unusual prompts.
🎯 Exploit Status
Exploitation requires crafting a malicious HTML page and convincing users to visit it, but no authentication is needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 124.0.6367.60
Vendor Advisory: https://chromereleases.googleblog.com/2024/04/stable-channel-update-for-desktop_16.html
Restart Required: Yes
Instructions:
1. Open Chrome. 2. Click the three-dot menu > Help > About Google Chrome. 3. Chrome will automatically check for and install updates. 4. Click 'Relaunch' to restart Chrome with the update.
🔧 Temporary Workarounds
Disable Autofill
allTemporarily disable Chrome's autofill feature to prevent UI spoofing attacks.
chrome://settings/autofill
Use Chrome on Non-Windows OS
allSwitch to using Chrome on Linux or macOS, which are not affected by this vulnerability.
🧯 If You Can't Patch
- Implement web filtering to block known malicious sites and restrict access to untrusted domains.
- Educate users to be cautious of autofill prompts on unfamiliar websites and verify URLs before entering sensitive information.
🔍 How to Verify
Check if Vulnerable:
Check Chrome version: if below 124.0.6367.60 on Windows, it is vulnerable.Check Version:
chrome://version/Verify Fix Applied:
Confirm Chrome version is 124.0.6367.60 or higher after update.📡 Detection & Monitoring
Log Indicators:
- Unusual autofill events from suspicious domains in Chrome logs or endpoint monitoring tools.
Network Indicators:
- HTTP requests to domains hosting crafted HTML pages with autofill-related scripts.
SIEM Query:
source="chrome_logs" AND event="autofill_triggered" AND url CONTAINS "suspicious_domain"