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// graph-permissions · Device

Device.ReadWrite.AllMicrosoft Graph permission · High risk

Allows the app to read and write all device properties without a signed in user. Does not allow device creation, device deletion or update of device alternative security identifiers.

Application permission

High risk

Read and write devices. Allows the app to read and write all device properties without a signed in user. Does not allow device creation, device deletion or update of device alternative security identifiers.

ID1138cb37-bd11-4084-a2b7-9f71582aeddb
ConsentAlways needs admin consent
RiskCan change data across the whole tenant.

Grant it to an app

In the portal: App registrations › your app › API permissions › Add a permission › Microsoft Graph › Application permissions, then grant admin consent. Or with Graph PowerShell:

powershell5 lines
Connect-MgGraph -Scopes "Application.Read.All", "AppRoleAssignment.ReadWrite.All"
$graph = Get-MgServicePrincipal -Filter "appId eq '00000003-0000-0000-c000-000000000000'"
$app   = Get-MgServicePrincipal -Filter "appId eq '<your app's client id>'"
New-MgServicePrincipalAppRoleAssignment -ServicePrincipalId $app.Id `
    -PrincipalId $app.Id -ResourceId $graph.Id -AppRoleId "1138cb37-bd11-4084-a2b7-9f71582aeddb"

Which apps already have it?

powershell6 lines
# Apps that hold Device.ReadWrite.All as an application permission
Connect-MgGraph -Scopes "Application.Read.All"
$graph = Get-MgServicePrincipal -Filter "appId eq '00000003-0000-0000-c000-000000000000'"
Get-MgServicePrincipalAppRoleAssignedTo -ServicePrincipalId $graph.Id -All |
    Where-Object AppRoleId -eq "1138cb37-bd11-4084-a2b7-9f71582aeddb" |
    Select-Object PrincipalDisplayName, PrincipalId, CreatedDateTime

Other Device permissions

Check every app in your tenant → Permission explainer

Sources