CVE-2024-5274

9.6 CRITICAL

📋 TL;DR

This is a type confusion vulnerability in Chrome's V8 JavaScript engine that allows remote attackers to execute arbitrary code within the browser's sandbox by tricking users into visiting a malicious webpage. All users of affected Chrome versions are vulnerable when browsing untrusted websites. The vulnerability bypasses Chrome's sandbox protections to achieve code execution.

💻 Affected Systems

Products:
  • Google Chrome
  • Chromium-based browsers
Versions: All versions prior to 125.0.6422.112
Operating Systems: Windows, macOS, Linux, Android, iOS
Default Config Vulnerable: ⚠️ Yes
Notes: All default Chrome configurations are vulnerable. Chromium-based browsers like Microsoft 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

Complete system compromise through sandbox escape leading to arbitrary code execution with user privileges, potentially enabling malware installation, data theft, or ransomware deployment.

🟠

Likely Case

Remote code execution within the browser context allowing session hijacking, credential theft, cryptocurrency mining, or browser-based attacks against the user's system.

🟢

If Mitigated

Limited impact if browser sandbox holds, potentially only browser crash or denial of service without 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 page) but no authentication. Type confusion vulnerabilities in V8 are frequently exploited in the wild.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 125.0.6422.112

Vendor Advisory: https://chromereleases.googleblog.com/2024/05/stable-channel-update-for-desktop_23.html

Restart Required: Yes

Instructions:

1. Open Chrome. 2. Click three-dot menu → Help → About Google Chrome. 3. Chrome will automatically check for and install update. 4. Click 'Relaunch' to restart Chrome with the fix.

🔧 Temporary Workarounds

Disable JavaScript

all

Temporarily disable JavaScript execution in Chrome to prevent exploitation

chrome://settings/content/javascript → Block

Use Site Isolation

all

Ensure site isolation is enabled for additional protection

chrome://flags/#site-isolation-trial-opt-out → Disabled

🧯 If You Can't Patch

  • Use alternative browser temporarily
  • Implement network filtering to block malicious websites

🔍 How to Verify

Check if Vulnerable:

Check Chrome version in About Google Chrome page

Check Version:

google-chrome --version

Verify Fix Applied:

Verify Chrome version is 125.0.6422.112 or later

📡 Detection & Monitoring

Log Indicators:

  • Chrome crash reports
  • Unusual process spawns from Chrome
  • Memory access violations

Network Indicators:

  • Connections to known malicious domains
  • Unusual JavaScript execution patterns

SIEM Query:

process_name:chrome.exe AND (event_id:1000 OR event_id:1001) AND version < 125.0.6422.112

🔗 References

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