Microsoft CVE-2017-0144: Windows SMB Remote Code Execution Vulnerability

Description

A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 1.0 (SMBv1) server handles certain requests. An attacker who successfully exploited the vulnerability could gain the ability to execute code on the target server.To exploit the vulnerability, in most situations, an unauthenticated attacker could send a specially crafted packet to a targeted SMBv1 server.The security update addresses the vulnerability by correcting how SMBv1 handles these specially crafted requests.

This vulnerability is exploited through EternalBlue and used in the WannaCry/WannaCrypt/WNCRY and NotPetya ransomware.