CVE-2021-28562 : Vulnerability Insights and Analysis
Learn about CVE-2021-28562, a high-severity vulnerability in Adobe Acrobat Reader versions that could allow arbitrary code execution. Find mitigation steps and preventive measures here.
This article provides details about CVE-2021-28562, a Use After Free vulnerability affecting Adobe Acrobat Reader, potentially leading to arbitrary code execution.
Understanding CVE-2021-28562
CVE-2021-28562 is a Use After Free vulnerability impacting Adobe Acrobat Reader versions, allowing an attacker to execute arbitrary code.
What is CVE-2021-28562?
Adobe Acrobat Reader versions 2021.001.20150, 2020.001.30020, and 2017.011.30194 are affected by a Use After Free vulnerability. An attacker could exploit this to achieve arbitrary code execution within the current user's context.
The Impact of CVE-2021-28562
The vulnerability has a CVSS base score of 8.8, indicating a high severity issue. It requires user interaction, as the victim must open a malicious file for exploitation.
Technical Details of CVE-2021-28562
This section covers the technical aspects of CVE-2021-28562.
Vulnerability Description
CVE-2021-28562 involves a Use After Free flaw in Adobe Acrobat Reader, triggered when executing Javascript search queries, potentially leading to arbitrary code execution.
Affected Systems and Versions
Acrobat Reader versions 2021.001.20150, 2020.001.30020, and 2017.011.30194 are confirmed to be impacted by this vulnerability.
Exploitation Mechanism
To exploit CVE-2021-28562, an attacker would need to trick a user into opening a malicious file, allowing the execution of arbitrary code.
Mitigation and Prevention
Protecting systems against CVE-2021-28562 is crucial for security. Here are some mitigation strategies.
Immediate Steps to Take
Users should update Adobe Acrobat Reader to the latest secure version to mitigate the risk of exploitation.
Long-Term Security Practices
Implementing security best practices such as user awareness training, network segmentation, and access controls can enhance overall security posture.
Patching and Updates
Regularly updating software and applying security patches is essential to address known vulnerabilities and protect systems from exploitation.