CVE-2021-34846 Explained : Impact and Mitigation

A critical vulnerability has been discovered in Foxit PDF Reader version 11.0.0.49893 that allows remote attackers to execute arbitrary code. User interaction is required for exploitation, making it a high-risk issue.

Understanding CVE-2021-34846

This vulnerability in Foxit PDF Reader 11.0.0.49893 poses a significant security threat due to its potential for remote code execution.

What is CVE-2021-34846?

CVE-2021-34846 is a critical vulnerability in Foxit PDF Reader 11.0.0.49893 that enables remote attackers to execute arbitrary code. The flaw lies in the handling of Annotation objects, allowing attackers to exploit this issue with user interaction.

The Impact of CVE-2021-34846

The impact of this vulnerability is severe, with high confidentiality, integrity, and availability impacts. Attackers can leverage this flaw to execute code within the current process, posing a serious threat to affected systems.

Technical Details of CVE-2021-34846

The technical details of CVE-2021-34846 shed light on the vulnerability description, affected systems, versions, and exploitation mechanism.

Vulnerability Description

The vulnerability arises from the lack of object validation within Foxit PDF Reader 11.0.0.49893, specifically in the handling of Annotation objects. This oversight allows attackers to execute arbitrary code.

Affected Systems and Versions

Foxit PDF Reader version 11.0.0.49893 is the specific version impacted by CVE-2021-34846. Users of this version are at risk of remote code execution if they interact with malicious content.

Exploitation Mechanism

To exploit CVE-2021-34846, remote attackers must trick a target into visiting a malicious page or opening a harmful file. This interaction triggers the execution of arbitrary code within the context of the current process.

Mitigation and Prevention

Taking immediate steps and implementing long-term security practices are crucial to mitigating the risks associated with CVE-2021-34846.

Immediate Steps to Take

Users are advised to update Foxit PDF Reader to a non-vulnerable version and exercise caution while interacting with files from untrusted sources.

Long-Term Security Practices

Regularly updating software, practicing safe browsing habits, and staying informed about security vulnerabilities are essential for maintaining a secure digital environment.

Patching and Updates

Foxit PDF Reader users should prioritize installing patches released by the vendor to address the vulnerability and enhance overall system security.