UserAuthenticationMethod.ReadWrite.AllMicrosoft Graph permission · Critical risk
Allows the application to read and write authentication methods of all users in your organization, without a signed-in user. Authentication methods include things like a user's phone numbers and Authenticator app settings. This does not allow the app to see secret information like passwords, or to sign-in or otherwise use the authentication methods
Application permission
Critical riskRead and write all users' authentication methods . Allows the application to read and write authentication methods of all users in your organization, without a signed-in user. Authentication methods include things like a user's phone numbers and Authenticator app settings. This does not allow the app to see secret information like passwords, or to sign-in or otherwise use the authentication methods
| ID | 50483e42-d915-4231-9639-7fdb7fd190e5 |
|---|---|
| Consent | Always needs admin consent |
| Risk | Can be used to take over the tenant or grant itself more access. Grant only to tightly controlled, well-known apps. |
Delegated permission
Critical riskRead and write all users' authentication methods. Allows the app to read and write authentication methods of all users in your organization that the signed-in user has access to. Authentication methods include things like a user's phone numbers and Authenticator app settings. This does not allow the app to see secret information like passwords, or to sign-in or otherwise use the authentication methods.
| ID | b7887744-6746-4312-813d-72daeaee7e2d |
|---|---|
| Consent | Needs admin consent |
| Risk | Can be used to take over the tenant or grant itself more access. Grant only to tightly controlled, well-known apps. |
Least-privilege alternative
If the app only reads methods, use UserAuthenticationMethod.Read.All.
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:
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 "50483e42-d915-4231-9639-7fdb7fd190e5"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.
Connect-MgGraph -Scopes "UserAuthenticationMethod.ReadWrite.All"Which apps already have it?
# Apps that hold UserAuthenticationMethod.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 "50483e42-d915-4231-9639-7fdb7fd190e5" |
Select-Object PrincipalDisplayName, PrincipalId, CreatedDateTime# Apps with delegated consent for UserAuthenticationMethod.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 "UserAuthenticationMethod.ReadWrite.All" } |
Select-Object ClientId, ConsentType, PrincipalId