CVE-2021-31453 : Security Advisory and Response

A detailed overview of CVE-2021-31453, a vulnerability found in Foxit Reader version 10.1.1.37576 allowing remote code execution.

Understanding CVE-2021-31453

This CVE identifies a critical vulnerability in Foxit Reader version 10.1.1.37576 that enables attackers to execute arbitrary code remotely.

What is CVE-2021-31453?

CVE-2021-31453 is a flaw in Foxit Reader version 10.1.1.37576 that allows remote attackers to run malicious code on the system by exploiting vulnerabilities in XFA Forms' handling.

The Impact of CVE-2021-31453

The impact of this vulnerability is rated as high, with a CVSS base score of 7.8, affecting confidentiality, integrity, and availability of the system. Attackers require user interaction to trigger the exploit.

Technical Details of CVE-2021-31453

Exploring the technical aspects of CVE-2021-31453 to understand its implications better.

Vulnerability Description

The vulnerability arises due to the lack of validating object existence before operations in Foxit Reader, allowing attackers to execute code in the current process.

Affected Systems and Versions

Foxit Reader version 10.1.1.37576 is specifically impacted by this vulnerability, potentially affecting systems with this version installed.

Exploitation Mechanism

To exploit this vulnerability, attackers need users to visit a malicious page or open a corrupted file containing the malicious code.

Mitigation and Prevention

Taking necessary steps to mitigate the risks associated with CVE-2021-31453 and prevent potential exploitation.

Immediate Steps to Take

Users should avoid opening files from untrusted or unknown sources and regularly update their Foxit Reader software to the latest secure version.

Long-Term Security Practices

Implementing strong security practices like network segmentation, using robust antivirus software, and educating users on safe browsing habits can help bolster overall security.

Patching and Updates

Vendor-issued patches and updates should be promptly applied to ensure that known vulnerabilities are fixed.