CVE-2020-1521 Explained : Impact and Mitigation

A Windows Speech Runtime Elevation of Privilege Vulnerability was identified by Microsoft on August 11, 2020.

Understanding CVE-2020-1521

This CVE refers to a security flaw in Windows Speech Runtime that could allow malicious actors to elevate privileges on affected systems.

What is CVE-2020-1521?

An elevation of privilege vulnerability in the Windows Speech Runtime is due to improper memory handling. Attackers can exploit this by executing a specially crafted application to elevate their system privileges.

The Impact of CVE-2020-1521

The vulnerability is rated as HIGH severity with a CVSS base score of 7.8. If exploited, attackers could gain elevated privileges on the compromised system.

Technical Details of CVE-2020-1521

Vulnerability Description

The flaw arises from the improper memory handling in Windows Speech Runtime, enabling attackers to escalate their privileges.

Affected Systems and Versions

Windows 10 Version 1803, 1809, 1909, 1607, and 2004
Windows Server 2019, 2016
Windows Server 2019 (Server Core installation) and more

Exploitation Mechanism

To exploit, an attacker must first execute code on the target system and then run a specially crafted application for privilege escalation.

Mitigation and Prevention

Immediate Steps to Take

Apply the security update provided by Microsoft to address the vulnerability
Regularly monitor and restrict user permissions to mitigate potential risks

Long-Term Security Practices

Implement the principle of least privilege to limit potential impact of security flaws
Conduct regular security assessments and penetration testing to identify and address vulnerabilities

Patching and Updates

Keep systems up to date with the latest patches and security updates to protect against known vulnerabilities.