CVE-2021-31458 : Security Advisory and Response

A critical vulnerability, CVE-2021-31458, impacting Foxit Reader version 10.1.1.37576 has been discovered, allowing remote attackers to execute arbitrary code. This article provides insights into the nature of the vulnerability, its impact, and mitigation steps.

Understanding CVE-2021-31458

This section delves into the specifics of CVE-2021-31458, shedding light on the vulnerability affecting Foxit Reader.

What is CVE-2021-31458?

CVE-2021-31458 enables remote attackers to run arbitrary code on systems running Foxit Reader 10.1.1.37576, necessitating user interaction through visiting malicious sites or opening infected files. The flaw lies in the mishandling of Annotation objects due to the absence of pre-operation object validation.

The Impact of CVE-2021-31458

With a CVSS base score of 7.8 and a high severity rating, CVE-2021-31458 poses significant risks. Attackers can exploit this vulnerability to execute code within the current process, compromising confidentiality, integrity, and availability.

Technical Details of CVE-2021-31458

This section provides technical insights into CVE-2021-31458, including vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability stems from a Use After Free flaw, allowing attackers to execute arbitrary code on Foxit Reader installations. Lack of object validation prior to operations facilitates exploit.

Affected Systems and Versions

Foxit Reader version 10.1.1.37576 is confirmed to be impacted by this vulnerability. Users of this specific version are at risk of remote code execution.

Exploitation Mechanism

To exploit CVE-2021-31458, attackers can craft malicious web pages or files that leverage the mishandling of Annotation objects, prompting arbitrary code execution.

Mitigation and Prevention

In response to CVE-2021-31458, preventive measures and mitigation strategies can help safeguard systems against potential exploitation.

Immediate Steps to Take

Users are advised to exercise caution when interacting with untrusted web pages or files to reduce the risk of exploitation. Updating to a patched version or applying security updates is crucial.

Long-Term Security Practices

Regularly updating software, implementing security best practices, and maintaining awareness of emerging threats can enhance overall security posture.

Patching and Updates

Foxit Reader users are strongly recommended to install security patches provided by the vendor. Timely updates play a crucial role in addressing known vulnerabilities and enhancing system security.