(CVE-2024-21336) Microsoft Edge Vulnerability Report

CVE-2024-21336 is a spoofing vulnerability discovered in Microsoft Edge (Chromium-based). This vulnerability allows an attacker to spoof user interface elements or content within the browser. The severity of this vulnerability is considered low, with a Common Vulnerability Scoring System (CVSS) v3 base score of 2.5.

What is a Spoofing Vulnerability

A spoofing vulnerability refers to a security weakness that allows an attacker to impersonate or mimic something or someone else. This can involve deceiving systems or users by disguising malicious actions as legitimate ones. In the context of CVE-2024-21336, which affects Microsoft Edge (Chromium-based), the vulnerability allows an attacker to spoof user interface elements or web content within the browser. Essentially, this means the attacker could manipulate how web pages or interface components appear to the user, potentially misleading them or hiding malicious activities. This type of vulnerability can be particularly dangerous as it can trick users into sharing sensitive information or interacting with malicious content under false pretenses.

Vulnerability Details

Affected System:

• Microsoft Edge (Chromium-based)

How it is exploited:

• The specific technical details of how CVE-2024-21336 is exploited are not provided in the sources. However, generally, a spoofing vulnerability in a web browser could be exploited by an attacker to mislead the user by altering the appearance of web pages or interface elements. This could be done, for example, by creating a fake login page that looks like a legitimate website to capture sensitive information such as usernames and passwords.

Vulnerability Tips

Defense against the vulnerability:

1. Apply Updates: The primary defense against this vulnerability is to apply any available security updates from Microsoft for the Edge browser. Microsoft regularly releases patches to address such vulnerabilities, and keeping the software up-to-date is crucial for security.

2. Use Security Software: Employing good security software that can detect and block malicious websites and phishing attempts is beneficial.

3. User Awareness: Educating users about the risks of spoofing attacks and training them to recognize suspicious web content or user interface changes can help prevent successful exploits.

4. Regular Monitoring: Regularly monitoring network traffic and system logs for unusual activity can help in early detection of potential exploits.

It’s important to consult Microsoft’s Security Update Guide or other reputable cybersecurity sources for the most current information and guidance specific to CVE-2024-21336​