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← cd ~/roles
// roles/entra

Attribute Definition ReaderMicrosoft Entra built-in role

Read the definition of custom security attributes.

Role ID1d336d2c-4ae8-42ef-9711-b3604ce3fc2c
PrivilegedNo
Permissions2

What it can do

PermissionWhat it allows
microsoft.directory/attributeSets/allProperties/readRead all properties of attribute sets
microsoft.directory/customSecurityAttributeDefinitions/allProperties/readRead all properties of custom security attribute definitions

Assign it

The role ID is the same in every tenant, so these work as they are. Make it eligible through PIM:

powershell13 lines
Connect-MgGraph -Scopes "RoleEligibilitySchedule.ReadWrite.Directory"
$user = Get-MgUser -UserId "jane.doe@contoso.com"
New-MgRoleManagementDirectoryRoleEligibilityScheduleRequest -BodyParameter @{
    Action           = "AdminAssign"
    Justification    = "Needs Attribute Definition Reader for <reason>"
    RoleDefinitionId = "1d336d2c-4ae8-42ef-9711-b3604ce3fc2c"
    DirectoryScopeId = "/"
    PrincipalId      = $user.Id
    ScheduleInfo     = @{
        StartDateTime = (Get-Date).ToUniversalTime().ToString("o")
        Expiration    = @{ Type = "afterDuration"; Duration = "P180D" }
    }
}

Who already has it?

powershell3 lines
Connect-MgGraph -Scopes "RoleManagement.Read.Directory"
Get-MgRoleManagementDirectoryRoleAssignment -Filter "roleDefinitionId eq '1d336d2c-4ae8-42ef-9711-b3604ce3fc2c'" -ExpandProperty Principal |
    ForEach-Object { $_.Principal.AdditionalProperties.displayName }

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