Einrichten von Baselines für Sicherheitsrisikobewertungen für Azure SQL-Datenbanken

Dieses PowerShell-Skript richtet Baselines basierend auf den neuesten Überprüfungsergebnissen der Sicherheitsrisikobewertung für alle Datenbanken auf einem Azure SQL Server-Computer ein.

Für dieses Beispiel ist mindestens Azure PowerShell Az 1.0 erforderlich. Führen Sie Get-Module -ListAvailable Az aus, um die installierten Versionen zu ermitteln. Wenn Sie die Installation ausführen müssen, finden Sie unter Installieren des Azure PowerShell-Moduls Informationen dazu.

Führen Sie zum Anmelden bei Azure Connect-AzAccount aus.

Wenn Sie kein Azure-Abonnement haben, erstellen Sie ein kostenloses Azure-Konto, bevor Sie beginnen.

Beispielskript

<#
.SYNOPSIS
    This script sets the results of the last successful scan as baseline for each database under the selected Azure SQL Server.

.DESCRIPTION
    This script check if the selected Azure SQL Server uses Vulnerability Assessment Express Configuration, iterates through all user databases under a server and sets the latest scan results as a baseline.

#>


$SubscriptionId     = "<subscriptionid>"                         # The Subscription id that the server belongs to.
$ResourceGroupName  = "<resource group>"                         # The Resource Group that the server belongs to.
$ServerName         = "<server name>"                            # The SQL server name that we want to apply the new SQL Vulnerability Assessment policy to (short name, without suffix).
$APIVersion         = "2022-05-01-preview"




###### New SQL Vulnerability Assessment Commands ######
#######################################################


function GetExpressConfigurationStatus($SubscriptionId, $ResourceGroupName, $ServerName){
    $Uri  = "https://management.azure.com/subscriptions/$SubscriptionId/resourceGroups/$ResourceGroupName/providers/Microsoft.Sql/servers/$ServerName/sqlVulnerabilityAssessments/Default?api-version=" + $APIVersion
    SendRestRequest -Method "GET" -Uri $Uri
}


function SetLastScanAsBaselineOnSystemDatabase($SubscriptionId, $ResourceGroupName, $ServerName){
    $Uri  = "https://management.azure.com/subscriptions/$SubscriptionId/resourceGroups/$ResourceGroupName/providers/Microsoft.Sql/servers/$ServerName/sqlVulnerabilityAssessments/default/baselines/default?systemDatabaseName=master&api-version=" + $APIVersion
    $Body = "{properties: {latestScan: true,results: {}}}"
    SendRestRequest -Method "PUT" -Uri $Uri -Body $Body
}

function SetLastScanAsBaselineOnUserDatabase($SubscriptionId, $ResourceGroupName, $ServerName, $DatabaseName){
    $Uri  = "https://management.azure.com/subscriptions/$SubscriptionId/resourceGroups/$ResourceGroupName/providers/Microsoft.Sql/servers/$ServerName/databases/$DatabaseName/sqlVulnerabilityAssessments/default/baselines/default?api-version=" + $APIVersion
    $Body = "{properties: {latestScan: true,results: {}}}"
    SendRestRequest -Method "PUT" -Uri $Uri -Body $Body
}


function SendRestRequest(
    [Parameter(Mandatory=$True)]
    [string] $Method, 
    [Parameter(Mandatory=$True)]
    [string] $Uri, 
    [parameter( Mandatory=$false )]
    [string] $Body = "DEFAULT")
{  
    $AccessToken = Get-AzAccessToken
    $Token = "Bearer $($AccessToken.Token)"

    $headers = @{
        'Authorization' = $Token
    }

    $Params = @{
         Method = $Method
         Uri = $Uri
         Headers = $headers
         ContentType = "application/json"
    }

    if(!($Body -eq "DEFAULT"))
    {
      $Params = @{
         Method = $Method
         Uri = $Uri
         Body = $Body
         Headers = $headers
         ContentType = "application/json"
         }
    }
   
    Invoke-RestMethod @Params
}

#######################################################



# Connect
Connect-AzAccount
Set-AzContext $SubscriptionId

# Check if Express Configuration is enabled
$ECState = (GetExpressConfigurationStatus -SubscriptionId $SubscriptionId -ResourceGroupName $ResourceGroupName -ServerName $ServerName).properties.State

Write-Host "Express Configuration status: " $ECState

if ($ECState -eq "Enabled")
{
    # Get list of databases
    $databases = Get-AzSqlDatabase -ResourceGroupName $ResourceGroupName -ServerName $ServerName | where {$_.DatabaseName -ne "master"}

    # Set latest scan results as baseline on all user databases
    foreach ($database in $Databases)
    {
        Write-Host "Set baseline on database: '$($database.DatabaseName)'"
        SetLastScanAsBaselineOnUserDatabase -SubscriptionId $SubscriptionId -ResourceGroupName $ResourceGroupName -ServerName $ServerName -DatabaseName $database.DatabaseName    
    }

    Write-Host "Set baseline on 'master' database"
    SetLastScanAsBaselineOnSystemDatabase -SubscriptionId $SubscriptionId -ResourceGroupName $ResourceGroupName -ServerName $ServerName
}
else
{
    Write-Host "The specified server does not have VA Express Configuration enabled therefore bulk baseline operations were not performed."
    return
}

Nächste Schritte

Weitere Informationen zum Azure PowerShell-Modul finden Sie in der Azure PowerShell-Dokumentation.