CVE-2021-45979 : Exploit Details and Defense Strategies

Foxit PDF Reader and PDF Editor version 11.1 and earlier on macOS are vulnerable to remote code execution via app.launchURL in the JavaScript API.

Understanding CVE-2021-45979

What is CVE-2021-45979?

The CVE-2021-45979 vulnerability allows remote attackers to execute arbitrary code by exploiting a specific feature in Foxit PDF Reader and PDF Editor on macOS.

The Impact of CVE-2021-45979

The vulnerability poses a significant risk as attackers can remotely execute malicious code on the affected system, potentially leading to unauthorized access or data manipulation.

Technical Details of CVE-2021-45979

Vulnerability Description

Foxit PDF Reader and PDF Editor versions prior to 11.1 for macOS are susceptible to remote code execution through the app.launchURL function in the JavaScript API.

Affected Systems and Versions

Product: Foxit PDF Reader and PDF Editor
Versions affected: All versions before 11.1

Exploitation Mechanism

Attackers can exploit the vulnerability by using the app.launchURL function in the JavaScript API, enabling them to execute arbitrary code remotely.

Mitigation and Prevention

Immediate Steps to Take

Update Foxit PDF Reader and PDF Editor to version 11.1 or newer.
Exercise caution when opening PDF files from untrusted sources.

Long-Term Security Practices

Regularly update software and applications to patch known vulnerabilities.
Implement network security measures to detect and prevent malicious activities.

Patching and Updates

Apply security patches and updates provided by Foxit to mitigate the CVE-2021-45979 vulnerability.