6.1.3.4 Blocking Implicit Owner Rights
The Owner of a security descriptor is implicitly granted READ_CONTROL and WRITE_DAC rights by default. For servers running specific operating systems, these implicit rights are blocked when the following are TRUE:
The BlockOwnerImplicitRights dsHeuristic is set to 1 (section 6.1.1.2.4.1.2).
The requester is a member of neither the Domain Administrators (section 6.1.1.6.5) or the Enterprise Administrators (section 6.1.1.6.10) group.
The objectClass being added or modified is either of type computer or is derived from type computer.
Note: For servers running the operating systems specified in [MSFT-CVE-2021-42291], each with the related MSKB article download installed, implicit rights granted by default to the owner of the security descriptor are blocked when the specified conditions are TRUE.