azureblog.co.uk
← cd ~/graph-permissions
// graph-permissions · RoleManagement

RoleManagement.ReadWrite.ExchangeMicrosoft Graph permission · Medium risk

Allows the app to read and manage the role-based access control (RBAC) settings for your organization's Exchange Online service, without a signed-in user. This includes reading, creating, updating, and deleting Exchange management role definitions, role groups, role group membership, role assignments, management scopes, and role assignment policies.

Application permission

Medium risk

Read and write Exchange Online RBAC configuration. Allows the app to read and manage the role-based access control (RBAC) settings for your organization's Exchange Online service, without a signed-in user. This includes reading, creating, updating, and deleting Exchange management role definitions, role groups, role group membership, role assignments, management scopes, and role assignment policies.

ID025d3225-3f02-4882-b4c0-cd5b541a4e80
ConsentAlways needs admin consent
RiskCan make changes. Check the scope is as narrow as possible.

Delegated permission

Medium risk

Read and write Exchange Online RBAC configuration. Allows the app to read and manage the role-based access control (RBAC) settings for your organization's Exchange Online service, on behalf of the signed-in user. This includes reading, creating, updating, and deleting Exchange management role definitions, role groups, role group membership, role assignments, management scopes, and role assignment policies.

IDc1499fe0-52b1-4b22-bed2-7a244e0e879f
ConsentNeeds admin consent
RiskCan make changes. Check the scope is as narrow as possible.

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 "025d3225-3f02-4882-b4c0-cd5b541a4e80"

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 "RoleManagement.ReadWrite.Exchange"

Which apps already have it?

powershell6 lines
# Apps that hold RoleManagement.ReadWrite.Exchange 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 "025d3225-3f02-4882-b4c0-cd5b541a4e80" |
    Select-Object PrincipalDisplayName, PrincipalId, CreatedDateTime
powershell6 lines
# Apps with delegated consent for RoleManagement.ReadWrite.Exchange
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 "RoleManagement.ReadWrite.Exchange" } |
    Select-Object ClientId, ConsentType, PrincipalId

Other RoleManagement permissions

Check every app in your tenant → Permission explainer

Sources