CVE-2021-34850 : What You Need to Know
Learn about CVE-2021-34850, a critical vulnerability in Foxit PDF Reader 11.0.0.49893 that allows remote attackers to execute arbitrary code. Understand the impact and mitigation steps.
CVE-2021-34850 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader version 11.0.0.49893. The issue arises from a lack of validating the existence of an object prior to performing operations on the object, specifically within the handling of Annotation objects.
Understanding CVE-2021-34850
This section provides an overview of the vulnerability details and its potential impact.
What is CVE-2021-34850?
CVE-2021-34850 is a security flaw in Foxit PDF Reader 11.0.0.49893 that enables remote attackers to execute arbitrary code by exploiting a vulnerability in the handling of Annotation objects. User interaction is necessary for the exploit to occur.
The Impact of CVE-2021-34850
The vulnerability has a high severity impact, with attackers being able to execute code in the context of the current process. Confidentiality, integrity, and availability of affected systems are at risk.
Technical Details of CVE-2021-34850
In this section, we delve into the technical aspects of the vulnerability.
Vulnerability Description
The vulnerability stems from a lack of object validation within the Annotation objects handling, allowing for code execution by malicious actors.
Affected Systems and Versions
Foxit PDF Reader version 11.0.0.49893 is the specific version impacted by this vulnerability.
Exploitation Mechanism
To exploit this vulnerability, attackers need to entice a user to visit a malicious page or open a malicious file, triggering the execution of arbitrary code.
Mitigation and Prevention
Understanding how to mitigate and prevent the exploitation of this vulnerability is crucial for maintaining system security.
Immediate Steps to Take
Users should refrain from interacting with unknown or suspicious files or links to mitigate the risk of exploitation.
Long-Term Security Practices
Regularly updating software and maintaining awareness of security bulletins can help prevent similar exploits in the future.
Patching and Updates
Foxit PDF Reader users should install security patches provided by the vendor to address the vulnerability promptly.