Microsoft 'HiveNightmare' Vulnerability (CVE-2021-36934)
Microsoft has disclosed yet another critical vulnerability not long since PrintNightmare was disclosed. This privilege elevation vulnerability lies in the overly permissive Access Control Lists (ACLs) on the important and sensitive Security Accounts Manager (SAM) database, SYSTEM and SECURITY registry hives. This means that an attacker with a standard non-administrative account can in theory achieve local privilege escalation, masquerade as other users and/or achieve the following: