CVE-2021-34835 : What You Need to Know
Learn about CVE-2021-34835, a vulnerability in Foxit PDF Reader version 11.0.0.49893 allowing remote code execution. Understand the impact, affected systems, and mitigation steps.
This article discusses the CVE-2021-34835 vulnerability in Foxit PDF Reader version 11.0.0.49893, allowing remote attackers to execute arbitrary code. User interaction is required for exploitation by visiting a malicious page or opening a malicious file.
Understanding CVE-2021-34835
This section delves into the details of the CVE-2021-34835 vulnerability found in Foxit PDF Reader.
What is CVE-2021-34835?
The CVE-2021-34835 vulnerability in Foxit PDF Reader version 11.0.0.49893 enables remote attackers to run arbitrary code through a lack of validating the existence of an object when performing operations on it.
The Impact of CVE-2021-34835
The impact of this vulnerability is significant, with high confidentiality, integrity, and availability impacts, requiring user interaction for exploitation.
Technical Details of CVE-2021-34835
This section provides technical details of the CVE-2021-34835 vulnerability.
Vulnerability Description
The flaw in handling Annotation objects allows attackers to execute code within the current process, posing a severe security risk.
Affected Systems and Versions
Foxit PDF Reader version 11.0.0.49893 is affected by this vulnerability, making installations of this version susceptible to exploitation.
Exploitation Mechanism
Remote attackers can exploit this vulnerability by tricking users into accessing a malicious page or opening a corrupted file, thereby executing arbitrary code.
Mitigation and Prevention
Protecting systems from CVE-2021-34835 is crucial to ensure security and prevent potential exploitation.
Immediate Steps to Take
Users should update Foxit PDF Reader to a secure version, avoid visiting suspicious websites, and refrain from opening unknown or untrusted files.
Long-Term Security Practices
Maintaining up-to-date software, practicing safe browsing habits, and exercising caution while interacting with files and links can enhance overall security.
Patching and Updates
Regularly checking for security patches and updates from Foxit can help address vulnerabilities and enhance system protection.