CVE-2023-37939 : Exploit Details and Defense Strategies

A vulnerability has been identified in FortiClient products that could potentially expose sensitive information to unauthorized actors. This article provides an in-depth analysis of CVE-2023-37939.

Understanding CVE-2023-37939

This section delves into the details of the vulnerability, its impact, technical aspects, and mitigation strategies.

What is CVE-2023-37939?

The CVE-2023-37939 vulnerability involves an exposure of sensitive information to an unauthorized actor in FortiClient products for various versions across Windows, Mac, and Linux. The vulnerability may allow a local authenticated attacker to retrieve excluded files or folders from malware scanning.

The Impact of CVE-2023-37939

The impact of this vulnerability is considered low, with a CVSS base score of 3. It requires low privileges and user interaction, posing a risk of information disclosure to local attackers without administrative privileges.

Technical Details of CVE-2023-37939

This section provides detailed technical information about the vulnerability, including the description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in FortiClient products allows local authenticated attackers to access excluded files and folders from malware scanning, potentially leading to the exposure of sensitive information.

Affected Systems and Versions

FortiClient products affected by this vulnerability include FortiClient for Windows versions 7.2.0, 7.0, 6.4, 6.2, Linux versions 7.2.0, 7.0, 6.4, 6.2, and Mac versions 7.2.0 through 7.2.1, 7.0, 6.4, and 6.2.

Exploitation Mechanism

The vulnerability may be exploited by a local authenticated attacker with no administrative privileges, enabling them to retrieve the list of files or folders excluded from malware scanning.

Mitigation and Prevention

In response to CVE-2023-37939, it is essential to take immediate steps, implement long-term security practices, and ensure timely patching and updates.

Immediate Steps to Take

Updating FortiClient products to the following versions or above is recommended: FortiClientMac 7.2.2, FortiClientWindows 7.2.1, and FortiClientLinux 7.2.1.

Long-Term Security Practices

Implementing robust access controls, regular security assessments, and employee training on cybersecurity best practices can enhance overall security posture.

Patching and Updates

Regularly applying security patches and updates provided by Fortinet is crucial to address known vulnerabilities and enhance the security of FortiClient products.