CVE-2024-6100 – This vulnerability is a type confusion flaw in ... (How to Fix)

Q: What is the severity of CVE-2024-6100?

CVE-2024-6100 has a CVSS score of 8.8 (HIGH). This vulnerability is a type confusion flaw in Chrome's V8 JavaScript engine that allows a remote attacker to execute arbitrary code by tricking a user into visiting a malicious webpage. It affects all users running vulnerable versions of Google Chrome or Chromium-based browsers. Successful exploitation could lead to complete system compromise.

📋 TL;DR

This vulnerability is a type confusion flaw in Chrome's V8 JavaScript engine that allows a remote attacker to execute arbitrary code by tricking a user into visiting a malicious webpage. It affects all users running vulnerable versions of Google Chrome or Chromium-based browsers. Successful exploitation could lead to complete system compromise.

💻 Affected Systems

Products:

Google Chrome
Chromium-based browsers

Versions: Prior to 126.0.6478.114

Operating Systems: Windows, macOS, Linux, Android, iOS

Default Config Vulnerable: ⚠️ Yes

Notes: All default configurations are vulnerable. Affects both desktop and mobile versions.

📦 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

Remote code execution leading to full system compromise, data theft, ransomware deployment, or persistent backdoor installation.

🟠

Likely Case

Drive-by compromise where users visiting malicious websites get malware installed without interaction.

🟢

If Mitigated

Limited impact if browser sandboxing works correctly, potentially escaping sandbox to execute code with user privileges.

🌐 Internet-Facing: HIGH

🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: LIKELY

Unauthenticated Exploit: ⚠️ Yes

Complexity: MEDIUM

Exploitation requires user to visit malicious webpage. No authentication needed.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 126.0.6478.114 or later

Vendor Advisory: https://chromereleases.googleblog.com/2024/06/stable-channel-update-for-desktop_18.html

Restart Required: Yes

Instructions:

Open Chrome
Click three-dot menu → Help → About Google Chrome
Browser will check for updates and install if available
Click 'Relaunch' to restart Chrome

🔧 Temporary Workarounds

Disable JavaScript

all

Temporarily disable JavaScript to prevent exploitation, but will break most websites

chrome://settings/content/javascript → Block

🧯 If You Can't Patch

Use alternative browser temporarily
Implement network filtering to block malicious sites
Enable enhanced browser security settings

🔍 How to Verify

Check if Vulnerable:

Check Chrome version in About Google Chrome page

Check Version:

chrome://version/

Verify Fix Applied:

Verify version is 126.0.6478.114 or higher

📡 Detection & Monitoring

Log Indicators:

Chrome crash reports
Unusual process spawning from Chrome
Suspicious network connections from browser

Network Indicators:

Connections to known malicious domains
Unusual outbound traffic patterns from user workstations

SIEM Query:

process_name:chrome.exe AND (event_id:1000 OR suspicious_child_process)

📊 Metadata

CVE ID: CVE-2024-6100

CVSS v3 Score: 8.8 (HIGH)

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE: CWE-843

Published: June 20, 2024

Last Updated: November 21, 2024

🔗 References

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🔗 Related Vulnerabilities

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