CVE-2019-1420 : What You Need to Know

A security flaw has been identified in the dssvc.dll module's handling of file creation, potentially allowing unauthorized access to privileged locations through file overwrite or creation. This vulnerability, known as 'Windows Elevation of Privilege Vulnerability', has a unique CVE ID distinct from CVE-2019-1422 and CVE-2019-1423.

Understanding CVE-2019-1420

This CVE pertains to a specific security vulnerability in Windows systems that could lead to an elevation of privilege attack.

What is CVE-2019-1420?

CVE-2019-1420 is an elevation of privilege vulnerability in the dssvc.dll file creation process, enabling unauthorized access to secure locations.

The Impact of CVE-2019-1420

The vulnerability could allow attackers to gain elevated privileges on affected systems, potentially leading to further exploitation and compromise of sensitive data.

Technical Details of CVE-2019-1420

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The flaw in dssvc.dll allows for file overwrite or creation in secured locations, creating a potential security risk for Windows systems.

Affected Systems and Versions

Windows 10 for 32-bit Systems, x64-based Systems
Windows 10 Version 1607, 1709, 1803, 1809 for various architectures
Windows Server 2016, 2019, and Core installations
Windows 10 Version 1903 for different system types

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the file creation process in dssvc.dll to gain unauthorized access to privileged areas.

Mitigation and Prevention

Protecting systems from CVE-2019-1420 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by Microsoft promptly.
Monitor system logs for any suspicious file creation activities.
Implement the principle of least privilege to restrict access.

Long-Term Security Practices

Regularly update and patch systems to prevent known vulnerabilities.
Conduct security training for users to recognize and report suspicious activities.

Patching and Updates

Microsoft may release security updates to address CVE-2019-1420. Ensure systems are regularly updated to mitigate the risk of exploitation.