CVE-2020-0896 Explained : Impact and Mitigation

An elevation of privilege vulnerability exists when Windows improperly handles hard links, known as 'Windows Hard Link Elevation of Privilege Vulnerability'.

Understanding CVE-2020-0896

This CVE concerns an elevation of privilege vulnerability in Windows operating systems.

What is CVE-2020-0896?

An elevation of privilege flaw in Windows related to hard links
Unique from CVE-2020-0840, CVE-2020-0841, and CVE-2020-0849

The Impact of CVE-2020-0896

Allows attackers to execute arbitrary code with elevated privileges
Potential for unauthorized access and control of affected systems

Technical Details of CVE-2020-0896

This section delves into the technical specifics of the vulnerability.

Vulnerability Description

Improper handling of hard links in Windows
Enables unauthorized privilege escalation

Affected Systems and Versions

Windows 10 versions 1607, 1709, 1803, 1809, 1903, and 1909
Windows Server 2016, 2019, and versions 1803, 1903, 1909

Exploitation Mechanism

Attackers create hard links to exploit and escalate privileges

Mitigation and Prevention

Protective measures to address CVE-2020-0896.

Immediate Steps to Take

Implement the provided security updates from Microsoft
Monitor system logs for unusual activities
Enforce the principle of least privilege

Long-Term Security Practices

Regularly update systems with the latest patches
Conduct security audits and penetration testing
Educate users on security best practices

Patching and Updates

Apply patches provided by Microsoft to fix the vulnerability