CVE-2020-27900 : What You Need to Know

An issue existed in the handling of snapshots in macOS, which was resolved with improved permissions logic. This vulnerability allowed a malicious application to preview files it did not have access to.

Understanding CVE-2020-27900

This CVE details a security vulnerability in macOS that could be exploited by a malicious application to view unauthorized files.

What is CVE-2020-27900?

The vulnerability in the handling of snapshots in macOS allowed unauthorized file preview by a malicious application.

The Impact of CVE-2020-27900

The vulnerability could lead to unauthorized access to sensitive files on the affected system, potentially compromising user privacy and data security.

Technical Details of CVE-2020-27900

This section provides technical details of the vulnerability.

Vulnerability Description

The issue in macOS allowed a malicious application to preview files it did not have permission to access.

Affected Systems and Versions

Affected Product: macOS
Vendor: Apple
Affected Versions: Less than 11.0 (specific version unspecified)

Exploitation Mechanism

The vulnerability could be exploited by a malicious application to gain unauthorized access to files on the system.

Mitigation and Prevention

Protecting systems from CVE-2020-27900 requires immediate action and long-term security practices.

Immediate Steps to Take

Update macOS to version 11.0.1 or later to mitigate the vulnerability.
Avoid downloading and running untrusted applications.
Regularly monitor system activity for any suspicious behavior.

Long-Term Security Practices

Implement robust access control mechanisms to restrict unauthorized file access.
Educate users about the risks of downloading and running untrusted applications.

Patching and Updates

Apply security patches and updates provided by Apple to address the vulnerability in macOS.