CVE-2024-5499

8.8 HIGH

📋 TL;DR

This vulnerability is an out-of-bounds write in Chrome's Streams API that allows remote attackers to execute arbitrary code within the browser's sandbox via a malicious HTML page. All users running Google Chrome versions prior to 125.0.6422.141 are affected. The vulnerability enables remote code execution with high severity.

💻 Affected Systems

Products:
  • Google Chrome
  • Chromium-based browsers
Versions: All versions prior to 125.0.6422.141
Operating Systems: Windows, macOS, Linux, ChromeOS
Default Config Vulnerable: ⚠️ Yes
Notes: All standard Chrome installations are vulnerable. Chromium-based browsers may also be affected depending on their Streams API implementation.

📦 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 compromise of the browser sandbox leading to arbitrary code execution, potential system compromise if combined with other vulnerabilities, and data exfiltration.

🟠

Likely Case

Remote code execution within the browser sandbox, enabling attackers to steal sensitive data, install malware, or perform actions on behalf of the user.

🟢

If Mitigated

Limited impact due to Chrome's sandboxing, potentially containing the exploit to the browser process only.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires user interaction (visiting a malicious webpage). The vulnerability is in the Streams API which handles data streams in web applications.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 125.0.6422.141

Vendor Advisory: https://chromereleases.googleblog.com/2024/05/stable-channel-update-for-desktop_30.html

Restart Required: Yes

Instructions:

1. Open Chrome. 2. Click the three-dot menu. 3. Go to Help > About Google Chrome. 4. Chrome will automatically check for and install updates. 5. Click Relaunch to restart Chrome with the updated version.

🔧 Temporary Workarounds

Disable JavaScript

all

Temporarily disable JavaScript to prevent exploitation via malicious web pages

chrome://settings/content/javascript

Use Browser Extensions

all

Install script-blocking extensions like NoScript or uBlock Origin to control JavaScript execution

🧯 If You Can't Patch

  • Restrict access to untrusted websites and implement web filtering
  • Use application whitelisting to prevent unauthorized browser execution

🔍 How to Verify

Check if Vulnerable:

Check Chrome version in Settings > About Chrome. If version is below 125.0.6422.141, the system is vulnerable.

Check Version:

google-chrome --version

Verify Fix Applied:

Verify Chrome version is 125.0.6422.141 or higher in Settings > About Chrome.

📡 Detection & Monitoring

Log Indicators:

  • Chrome crash reports
  • Unusual process spawns from Chrome
  • Memory access violation logs

Network Indicators:

  • Requests to known malicious domains hosting exploit code
  • Unusual outbound connections from Chrome processes

SIEM Query:

source="chrome" AND (event_type="crash" OR process_name="chrome.exe" AND parent_process!="explorer.exe")

🔗 References

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