A newly discovered security vulnerability in Microsoft Edge, which is based on Chromium, has been reported and assigned CVE-2024-38103. This vulnerability could allow an attacker to access sensitive data and disclose information. This blog post will explain the exploit details, provide references to original sources, and share a relevant code snippet regarding the matter.

Exploit Details

The critical vulnerability, identified as CVE-2024-38103, is found in the Chromium-based Microsoft Edge web browser. It allows an attacker to potentially gather sensitive user information by exploiting a weakness in the rendering engine. This type of security vulnerability is known as an information disclosure issue.

A remote attacker can take advantage of this bug by crafting a web page that triggers the vulnerability and convinces a user to visit the page. The attacker can then collect sensitive data such as authentication cookies, security tokens, and other private information. This could lead to additional attacks against the user and even potentially against the organization where the user works.

Here's a simplified proof-of-concept (POC) code demonstrating the vulnerability

<!DOCTYPE html>
<html>
<head>
  <script>
    function exploit() {
      // Trigger the vulnerability here
    }
  </script>
</head>
<body onload="exploit()">
  <h1>CVE-2024-38103 POC</h1>
</body>
</html>

Please note that this example is for demonstration purposes only and not intended to be used maliciously.

Original References

1. Chromium Project - Original report regarding the vulnerability can be found here: Chromium Issue Tracker Link - CVE-2024-38103

2. Microsoft Security Response Center - Official Microsoft security advisory about this vulnerability: MSRC Advisory Link - CVE-2024-38103

Mitigation and Solution

Users are advised to update their Microsoft Edge (Chromium-based) web browsers immediately to the latest version, which includes a patch that addresses this vulnerability. Microsoft has published an update fixing the issue, and you can download it from the following link: Microsoft Edge Update Download Link

Conclusion

In conclusion, CVE-2024-38103 is a crucial information disclosure vulnerability in Microsoft Edge, based on Chromium. It poses a significant risk to users and organizations that can result in unauthorized access to sensitive data. Promptly apply available patches and follow recommended security practices to minimize the impact of this vulnerability on your organization and personal use.

Timeline

Published on: 07/25/2024 22:15:08 UTC
Last modified on: 08/05/2024 13:43:28 UTC