CVE-2021-31444 : Exploit Details and Defense Strategies

This article provides detailed information about CVE-2021-31444, a vulnerability in Foxit Reader version 10.1.1.37576 that allows remote attackers to disclose sensitive information by exploiting U3D objects in PDF files.

Understanding CVE-2021-31444

This section delves into what CVE-2021-31444 entails, its impact, technical details, and mitigation strategies.

What is CVE-2021-31444?

CVE-2021-31444 is a vulnerability in Foxit Reader that permits remote attackers to access sensitive data by exploiting the mishandling of U3D objects in PDF files.

The Impact of CVE-2021-31444

The vulnerability in Foxit Reader version 10.1.1.37576 poses a risk of unauthorized disclosure of information, potentially enabling attackers to execute arbitrary code within the current process.

Technical Details of CVE-2021-31444

This segment outlines the specifics of the vulnerability, affected systems, and how attackers can exploit it.

Vulnerability Description

The flaw results from inadequate validation of user-supplied data, leading to a read past the end of an allocated object, facilitating information disclosure and potential code execution.

Affected Systems and Versions

Foxit Reader version 10.1.1.37576 is susceptible to this vulnerability, requiring user interaction through visiting a malicious page or opening a corrupted file.

Exploitation Mechanism

Attackers leverage the mishandling of U3D objects in PDF files to execute arbitrary code within the context of the victim's system.

Mitigation and Prevention

This section details immediate steps to enhance security and long-term practices to protect against CVE-2021-31444.

Immediate Steps to Take

Users should update Foxit Reader to a patched version, avoid visiting suspicious websites, and refrain from opening files from untrusted sources.

Long-Term Security Practices

Regularly update software, utilize security tools, and educate users on safe browsing habits to mitigate the risk of similar vulnerabilities. Implementing strong web filtering and endpoint protection are recommended.

Patching and Updates

Stay informed about security advisories from Foxit Software and apply patches promptly to safeguard systems against potential exploitation.