CVE-2018-3924 : Exploit Details and Defense Strategies

A vulnerability in Foxit Software's Foxit PDF Reader version 9.1.5096 allows for remote code execution through a specially crafted PDF document.

Understanding CVE-2018-3924

This CVE involves a use-after-free vulnerability in the JavaScript engine of Foxit PDF Reader version 9.1.5096.

What is CVE-2018-3924?

The vulnerability enables arbitrary code execution by reusing a freed object in memory via a malicious PDF document.
Attackers can exploit this by tricking users into opening the malicious file or through the browser plugin extension.

The Impact of CVE-2018-3924

CVSS Score: 8.8 (High)
Attack Vector: Network
Attack Complexity: Low
User Interaction: Required
Confidentiality, Integrity, and Availability Impact: High

Technical Details of CVE-2018-3924

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The vulnerability allows attackers to execute arbitrary code by manipulating memory objects.

Affected Systems and Versions

Foxit Software's Foxit PDF Reader version 9.1.5096 is affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by creating a specially crafted PDF document to trigger the use-after-free condition.

Mitigation and Prevention

Protecting systems from CVE-2018-3924 requires immediate actions and long-term security practices.

Immediate Steps to Take

Disable the browser plugin extension if not essential.
Avoid opening PDF files from untrusted sources.
Regularly update Foxit PDF Reader to the latest version.

Long-Term Security Practices

Educate users on safe browsing habits and the risks associated with opening unknown files.
Implement network security measures to detect and block malicious PDF files.

Patching and Updates

Apply security patches provided by Foxit Software promptly to address this vulnerability.