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// graph-permissions · AppRoleAssignment

AppRoleAssignment.ReadWrite.AllMicrosoft Graph permission · Critical risk

Allows the app to manage permission grants for application permissions to any API (including Microsoft Graph) and application assignments for any app, without a signed-in user.

Application permission

Critical risk

Manage app permission grants and app role assignments. Allows the app to manage permission grants for application permissions to any API (including Microsoft Graph) and application assignments for any app, without a signed-in user.

ID06b708a9-e830-4db3-a914-8e69da51d44f
ConsentAlways needs admin consent
RiskCan be used to take over the tenant or grant itself more access. Grant only to tightly controlled, well-known apps.

Delegated permission

Critical risk

Manage app permission grants and app role assignments. Allows the app to manage permission grants for application permissions to any API (including Microsoft Graph) and application assignments for any app, on behalf of the signed-in user.

ID84bccea3-f856-4a8a-967b-dbe0a3d53a64
ConsentNeeds admin consent
RiskCan be used to take over the tenant or grant itself more access. Grant only to tightly controlled, well-known apps.

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 "06b708a9-e830-4db3-a914-8e69da51d44f"

Ask for it when signing in

Delegated permissions act as the signed-in user, so the app can never do more than that user can.

powershell1 line
Connect-MgGraph -Scopes "AppRoleAssignment.ReadWrite.All"

Which apps already have it?

powershell6 lines
# Apps that hold AppRoleAssignment.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 "06b708a9-e830-4db3-a914-8e69da51d44f" |
    Select-Object PrincipalDisplayName, PrincipalId, CreatedDateTime
powershell6 lines
# Apps with delegated consent for AppRoleAssignment.ReadWrite.All
Connect-MgGraph -Scopes "Application.Read.All", "Directory.Read.All"
$graph = Get-MgServicePrincipal -Filter "appId eq '00000003-0000-0000-c000-000000000000'"
Get-MgOauth2PermissionGrant -All |
    Where-Object { $_.ResourceId -eq $graph.Id -and ($_.Scope -split " ") -contains "AppRoleAssignment.ReadWrite.All" } |
    Select-Object ClientId, ConsentType, PrincipalId

Check every app in your tenant → Permission explainer

Sources