Microsoft Edge Remote Code Execution Flaw Allows Attackers to Gain Full Control of Systems

Introduction

A critical remote code execution (RCE) vulnerability has been identified in Microsoft Edge, posing a significant security risk. This vulnerability, assigned CVE-2024-38210, could allow attackers to take control of affected systems by executing arbitrary code remotely. The discovery highlights a serious flaw in the browser's security that could have wide-reaching implications if not addressed promptly.

Details of the Vulnerability

Vulnerability Identifier: CVE-2024-38210
The vulnerability is cataloged as CVE-2024-38210, reflecting its unique identifier in the Common Vulnerabilities and Exposures (CVE) system.

Severity Rating: Important
Microsoft has rated this vulnerability as “Important” on its severity scale, indicating that while it is not the highest severity, it still presents a significant risk that requires immediate attention.

Affected Versions:
The flaw affects Microsoft Edge (Stable) versions prior to 128.0.2739.42. Users on these versions are vulnerable to exploitation, while those on updated versions are protected against this specific issue.

Exploitation Methods

Direct System Access:
Attackers with direct access to the target system can exploit this vulnerability by running a specially crafted application designed to trigger the flaw. This method requires the attacker to already have physical or remote access to the affected system, which may be facilitated by other means.

Social Engineering:
A more common and potentially effective method involves social engineering tactics. Attackers may convince local users to open a malicious file, often distributed through phishing emails, instant messages, or other deceptive means. This file, once executed, can exploit the vulnerability and allow the attacker to execute arbitrary code on the system.

Potential Impact

Execution of Arbitrary Code:
If successfully exploited, this vulnerability enables attackers to execute arbitrary code on the targeted system. This capability could allow them to gain full control of the system, access sensitive data, and perform unauthorized actions.

User Interaction Requirement:
The attack vector requires user interaction to be effective. Victims must follow specific steps, such as opening a malicious file or application, which means that attackers rely on tricking users into performing these actions.

Mitigation and Recommendations

Update Recommendation:
To address the vulnerability, Microsoft has released an update that fixes the issue. Users are strongly advised to upgrade to Microsoft Edge (Stable) version 128.0.2739.42 or later. Updating to this version will patch the vulnerability and protect the system from potential exploits.

General Security Practices:

• Keep Software Up-to-Date: Regularly updating all software, including browsers and operating systems, ensures that you benefit from the latest security patches and fixes.
• Be Cautious with Unknown Files and Links: Avoid opening files or clicking on links from unknown or untrusted sources. Verify the legitimacy of emails and messages before taking action.
• Implement Robust Security Measures: Utilize security tools such as email filters to block phishing attempts and educate users about potential threats to enhance overall security.

Additional Information

Exploit Status:
Currently, there is no specific information about exploits for CVE-2024-38210. However, once a vulnerability is disclosed, it often attracts the attention of cybercriminals who may develop exploits quickly. Monitoring for any updates or reports of active exploitation is crucial.

Monitoring:
Organizations should regularly check official sources for updates on vulnerabilities. Microsoft’s security advisories and the Cybersecurity and Infrastructure Security Agency (CISA) KEV Catalog are reliable resources for the most current information on exploited vulnerabilities.

Version Check and Update Instructions

Checking Version:
To verify your Microsoft Edge version, follow these steps:

1. Open Microsoft Edge.
2. Click on the three-dot menu (…) in the top right corner.
3. Navigate to Help and Feedback > About Microsoft Edge.
4. The version number will be displayed on the page that opens.

Updating Edge:
If your version is older than 128.0.2739.42, you should update Edge to the latest version. Edge typically updates automatically, but you can manually check for updates by going to Help and Feedback > About Microsoft Edge and following the prompts.

Related Security Updates

Google Chrome Zero-Day:
Recently, a high-severity zero-day vulnerability was discovered in Google Chrome. This emphasizes the importance of keeping all Chromium-based browsers updated, not just Microsoft Edge.

Impact on Other Browsers:
Users of other Chromium-based browsers, such as Brave, Opera, and Vivaldi, should also apply the latest security updates. These browsers share the same underlying technology as Microsoft Edge and may be affected by similar vulnerabilities.