CVE-2023-32664 : Exploit Details and Defense Strategies

A type confusion vulnerability in Foxit Reader 12.1.2.15332 could allow remote code execution by processing specially crafted Javascript code within a malicious PDF file.

Understanding CVE-2023-32664

Foxit Reader 12.1.2.15332 is impacted by a type confusion flaw in its Javascript checkThisBox method, which could be exploited to trigger memory corruption and potentially execute remote code when a user interacts with a malicious PDF.

What is CVE-2023-32664?

The vulnerability stems from improper handling of types in the Javascript code of Foxit Reader, allowing an attacker to craft a malicious PDF with specially designed Javascript that could lead to memory corruption and the execution of arbitrary code on the victim's system.

The Impact of CVE-2023-32664

The impact of this CVE is rated as HIGH due to the potential for an attacker to exploit the vulnerability by enticing a user to open a malicious PDF file, leading to unauthorized remote code execution with elevated privileges.

Technical Details of CVE-2023-32664

The following technical aspects outline the details of the vulnerability.

Vulnerability Description

The type confusion vulnerability in the Javascript checkThisBox method of Foxit Reader 12.1.2.15332 can result in memory corruption when processing malicious Javascript code within a PDF document.

Affected Systems and Versions

Vendor: Foxit
Product: Foxit Reader
Affected Version: 12.1.2.15332

Exploitation Mechanism

By enticing a user to open a crafted PDF file containing malicious Javascript code, an attacker can trigger the vulnerability, leading to memory corruption and potential remote code execution on the target system.

Mitigation and Prevention

To address and prevent the exploitation of CVE-2023-32664, consider the following mitigation strategies and best practices.

Immediate Steps to Take

Users are advised to refrain from opening PDF files from untrusted or unknown sources, especially those received via unfamiliar emails or websites to minimize the risk of exploitation.

Long-Term Security Practices

Regularly update Foxit Reader to the latest version provided by the vendor to patch known vulnerabilities and enhance overall security posture.

Patching and Updates

Stay informed about security advisories and updates from Foxit to promptly apply patches and fixes addressing critical vulnerabilities like the type confusion flaw discovered in Foxit Reader 12.1.2.15332.