ADObjectPermissionEntry: The object name has bad syntax when configuring OU which requires escaped character

[Borgquite]

Details of the scenario you tried and the problem that is occurring

When using ADObjectPermissionEntry to configure an ACL on a Path that requires escaping (comma, backslash, hash, plus etc), the command fails with 'The object name has bad syntax'

Verbose logs showing the problem

PowerShell DSC resource MSFT_ADObjectPermissionEntry failed to execute Test-TargetResource functionality with error message: The object name has bad syntax

Suggested solution to the issue

Appears to be a known error in Get-ACL when using the AD PSDrive provider since 1809: https://www.reddit.com/r/PowerShell/comments/ce4f2x/getacl_on_ad_object_bug_in_1809/eu08hae/

Under ActiveDirectoryDsc/source/DSCResources/MSFT_ADObjectPermissionEntry/MSFT_ADObjectPermissionEntry.psm1, the two Get-ACL commands (line 87, 213) and the Set-ACL command later on should have:
Get-Acl -Path "AD:$Path"
replaced with:
'Get-Acl -Path "Microsoft.ActiveDirectory.Management.dll\ActiveDirectory:://RootDSE/$Path"`

It looks like whoever wrote it originally may have known this - it appears to have reverted in 2.25.0.0 (https://github.com/dsccommunity/ActiveDirectoryDsc/blob/main/HISTORIC_CHANGELOG.md#22500)

This will need to stay like this until Microsoft fix the AD PSDrive bug.

The DSC configuration that is used to reproduce the issue (as detailed as possible)

              ADOrganizationalUnit "TestOU"
              {
                  Name = "Test+OU"
                  Path = "DC=domain,DC=name=DC=here"
                  Ensure = "Present"
              }
              ADObjectPermissionEntry $("Test2")
              {
                  Path = "OU=Test+OU,DC=domain,DC=name=DC=here"
                  IdentityReference = "DomainName\Administrators"
                  AccessControlType = "Allow"
                  ObjectType = "00000000-0000-0000-0000-000000000000"
                  ActiveDirectorySecurityInheritance = "All"
                  InheritedObjectType = "00000000-0000-0000-0000-000000000000"
                  Ensure = "Present"
              }

The operating system the target node is running

OsName : Microsoft Windows Server 2019 Datacenter
OsOperatingSystemSKU : DatacenterServerEdition
OsArchitecture : 64-bit
WindowsVersion : 1809
WindowsBuildLabEx : 17763.1.amd64fre.rs5_release.180914-1434
OsLanguage : en-US
OsMuiLanguages : {en-US}

Version and build of PowerShell the target node is running

PSVersion 5.1.17763.2268
PSEdition Desktop
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0...}
BuildVersion 10.0.17763.2268
CLRVersion 4.0.30319.42000
WSManStackVersion 3.0
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1

Version of the DSC module that was used

6.0.1