CVE-2024-9602

8.8 HIGH

📋 TL;DR

This vulnerability is a type confusion flaw in Chrome's V8 JavaScript engine that allows attackers to write data outside intended memory bounds. Attackers can exploit this by tricking users into visiting malicious websites, potentially leading to arbitrary code execution. All users running vulnerable Chrome versions are affected.

💻 Affected Systems

Products:
  • Google Chrome
  • Chromium-based browsers
Versions: Versions prior to 129.0.6668.100
Operating Systems: Windows, macOS, Linux, Android, iOS
Default Config Vulnerable: ⚠️ Yes
Notes: All default Chrome configurations are vulnerable. Chromium-based browsers like Edge, Brave, etc. may also be affected if using vulnerable V8 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...

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⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution with full system compromise, allowing attackers to install malware, steal data, or create persistent backdoors.

🟠

Likely Case

Browser crash leading to denial of service, or limited memory corruption that could be leveraged for further exploitation.

🟢

If Mitigated

Browser sandboxing may contain the damage to the browser process, preventing full system compromise.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: MEDIUM

Exploitation requires user interaction (visiting malicious site) but no authentication. Type confusion vulnerabilities in V8 have historically been exploited in the wild.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 129.0.6668.100

Vendor Advisory: https://chromereleases.googleblog.com/2024/10/stable-channel-update-for-desktop_8.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 JavaScript

all

Prevents exploitation by disabling JavaScript execution, but breaks most website functionality.

Use Site Isolation

all

Enable Chrome's Site Isolation feature to limit impact of renderer process compromises.

🧯 If You Can't Patch

  • Restrict access to untrusted websites using web filtering or proxy controls.
  • Implement application allowlisting to prevent execution of unauthorized binaries.

🔍 How to Verify

Check if Vulnerable:

Check Chrome version: If version is below 129.0.6668.100, the system is vulnerable.

Check Version:

chrome://version/

Verify Fix Applied:

Confirm Chrome version is 129.0.6668.100 or higher after update.

📡 Detection & Monitoring

Log Indicators:

  • Chrome crash reports with V8-related errors
  • Unexpected Chrome process termination

Network Indicators:

  • Connections to suspicious domains followed by Chrome crashes

SIEM Query:

source="chrome_crash_reports" AND (message="V8" OR message="type confusion")

🔗 References

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