CVE-2020-24431 Explained : Impact and Mitigation

Acrobat Reader DC for macOS Dynamic Library Injection Vulnerability

Understanding CVE-2020-24431

Acrobat Reader DC for macOS versions 2020.012.20048 and earlier, 2020.001.30005 and earlier, and 2017.011.30175 and earlier are affected by a security feature bypass leading to dynamic library code injection.

What is CVE-2020-24431?

This CVE identifies a vulnerability in Acrobat Reader DC for macOS that allows for dynamic library code injection by the Adobe Reader process, requiring user interaction through opening a malicious file.

The Impact of CVE-2020-24431

The vulnerability has a CVSS base score of 4.4, with medium severity. It could result in unauthorized code execution and potential compromise of confidentiality and integrity.

Technical Details of CVE-2020-24431

Vulnerability Description

The vulnerability in Acrobat Reader DC for macOS allows for dynamic library code injection, potentially leading to unauthorized code execution.

Affected Systems and Versions

Acrobat Reader DC for macOS versions 2020.012.20048 and earlier
Acrobat Reader DC for macOS versions 2020.001.30005 and earlier
Acrobat Reader DC for macOS versions 2017.011.30175 and earlier

Exploitation Mechanism

Exploitation requires user interaction by opening a malicious file
Attack complexity is low, with a local attack vector

Mitigation and Prevention

Immediate Steps to Take

Update Acrobat Reader DC to the latest version
Avoid opening files from untrusted or unknown sources

Long-Term Security Practices

Regularly update software and operating systems
Implement security awareness training to educate users on safe practices

Patching and Updates

Adobe has released security updates to address this vulnerability