CVE-2020-1356 Explained : Impact and Mitigation

Windows iSCSI Target Service Elevation of Privilege Vulnerability

Understanding CVE-2020-1356

What is CVE-2020-1356?

An elevation of privilege vulnerability in the Windows iSCSI Target Service's file operation handling.

The Impact of CVE-2020-1356

This vulnerability could allow an attacker to elevate privileges on the affected system.

Technical Details of CVE-2020-1356

Vulnerability Description

The vulnerability arises from the improper handling of file operations by the Windows iSCSI Target Service.

Affected Systems and Versions

The following Microsoft Windows Server versions are impacted:

Windows Server, version 2004 (Server Core installation)
Windows Server 2019
Windows Server 2016
Windows Server 2012
Windows Server 2012 R2
Windows Server, version 1909 (Server Core installation)
Windows Server, version 1903 (Server Core installation)

Exploitation Mechanism

The vulnerability allows an attacker to elevate their privileges by manipulating file operations within the iSCSI Target Service.

Mitigation and Prevention

Immediate Steps to Take

Apply the Microsoft security update associated with CVE-2020-1356.
Monitor for any suspicious activity on the network.

Long-Term Security Practices

Regularly update systems with the latest security patches.
Implement the principle of least privilege to restrict user access.

Patching and Updates

Ensure all Windows Servers are updated with the latest security patches to mitigate the vulnerability.