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// graph-permissions · MutualTlsOauthConfiguration

MutualTlsOauthConfiguration.ReadWrite.AllMicrosoft Graph permission · High risk

Allows the app to read and update configuration used for OAuth 2.0 mutual-TLS client authentication, without a signed-in user. This includes reading and updating trusted certificate authorities.

Application permission

High risk

Read and write all configurations used for mutual-TLS client authentication.. Allows the app to read and update configuration used for OAuth 2.0 mutual-TLS client authentication, without a signed-in user. This includes reading and updating trusted certificate authorities.

ID78bbf8cf-07d8-45ba-b0eb-1a7b48efbcf1
ConsentAlways needs admin consent
RiskCan change data across the whole tenant.

Delegated permission

High risk

Read and write all configurations used for mutual-TLS client authentication.. Allows the app to read and update configuration used for OAuth 2.0 mutual-TLS client authentication, on behalf of the signed-in user. This includes adding and updating trusted certificate authorities.

IDa51115bc-f64f-498f-bcee-00dcd28f4a03
ConsentNeeds 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 "78bbf8cf-07d8-45ba-b0eb-1a7b48efbcf1"

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 "MutualTlsOauthConfiguration.ReadWrite.All"

Which apps already have it?

powershell6 lines
# Apps that hold MutualTlsOauthConfiguration.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 "78bbf8cf-07d8-45ba-b0eb-1a7b48efbcf1" |
    Select-Object PrincipalDisplayName, PrincipalId, CreatedDateTime
powershell6 lines
# Apps with delegated consent for MutualTlsOauthConfiguration.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 "MutualTlsOauthConfiguration.ReadWrite.All" } |
    Select-Object ClientId, ConsentType, PrincipalId

Other MutualTlsOauthConfiguration permissions

Check every app in your tenant → Permission explainer

Sources