CVE-2018-3994 : Exploit Details and Defense Strategies

Foxit PDF Reader version 9.2.0.9297 has a vulnerability in its JavaScript engine that allows for remote code execution when a specific PDF document triggers the reuse of a freed object in memory.

Understanding CVE-2018-3994

This CVE involves a critical vulnerability in Foxit PDF Reader version 9.2.0.9297 that can be exploited for remote code execution.

What is CVE-2018-3994?

The vulnerability in Foxit PDF Reader version 9.2.0.9297 allows an attacker to execute arbitrary code by manipulating a PDF document.
Attackers can exploit this vulnerability by deceiving users into opening a malicious file or by visiting a compromised website.

The Impact of CVE-2018-3994

CVSS Base Score: 8 (High)
Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: Required
Confidentiality, Integrity, and Availability Impact: High
This vulnerability poses a significant risk as it allows attackers to execute malicious code on affected systems.

Technical Details of CVE-2018-3994

Foxit PDF Reader version 9.2.0.9297 vulnerability details.

Vulnerability Description

An exploitable use-after-free vulnerability exists in the JavaScript engine of Foxit PDF Reader.
A specially crafted PDF document can trigger the reuse of a freed object in memory, leading to arbitrary code execution.

Affected Systems and Versions

Affected Product: Foxit PDF Reader
Vendor: Foxit Software
Affected Version: 9.2.0.9297

Exploitation Mechanism

Attackers exploit this vulnerability by tricking users into opening a manipulated PDF file or by directing them to a malicious website.

Mitigation and Prevention

Protecting systems from CVE-2018-3994.

Immediate Steps to Take

Disable the browser plugin extension for Foxit PDF Reader if not essential.
Be cautious when 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 activities.

Patching and Updates

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