{"id":208158,"date":"2023-12-12T09:01:57","date_gmt":"2023-12-12T09:01:57","guid":{"rendered":"https:\/\/www.ninjaone.com\/script-hub\/configurare-una-archiviazione-di-lm-hash-con-powershell-2\/"},"modified":"2024-03-04T18:42:16","modified_gmt":"2024-03-04T18:42:16","slug":"configurare-una-archiviazione-di-lm-hash-con-powershell-2","status":"publish","type":"script_hub","link":"https:\/\/www.ninjaone.com\/it\/script-hub\/configurare-una-archiviazione-di-lm-hash-con-powershell-2\/","title":{"rendered":"Come configurare una archiviazione di LM hash in locale, in modo efficiente, con PowerShell"},"content":{"rendered":"

Configurare una archiviazione di LM hash in locale<\/strong> \u00e8 un\u2019operazione fondamentale nei sistemi basati su Windows. Per i professionisti IT, la configurazione di questa archiviazione pu\u00f2 influire notevolmente sulla sicurezza del sistema. Lo script PowerShell fornito semplifica in modo elegante il processo di attivazione o disattivazione di questa funzione. Approfondiamo il suo significato e il suo funzionamento.<\/p>\n

Background<\/h2>\n

L’LM hash LM, o LAN Manager hash, \u00e8 in circolazione da qualche tempo ed \u00e8 noto per le sue vulnerabilit\u00e0. Nel corso del tempo, molti esperti di sicurezza hanno consigliato di disabilitare gli LM hash per rafforzare la sicurezza del sistema. Tuttavia, le configurazioni manuali possono essere noiose, ed \u00e8 per questo che strumenti e script, come quello fornito, diventano risorse preziose per i professionisti IT e i Managed Service Provider (MSP)<\/a>.<\/p>\n

Lo script per configurare una archiviazione di LM hash<\/h2>\n
#Requires -Version 5.1\r\n\r\n<#\r\n.SYNOPSIS\r\n    Disable or Enable Local LM Hash Storage\r\n.DESCRIPTION\r\n    Disable or Enable Local LM Hash Storage\r\n.EXAMPLE\r\n    -Enable\r\n    Enable Local LM Hash Storage\r\n.EXAMPLE\r\n    -Disable\r\n    Disable Local LM Hash Storage\r\n.EXAMPLE\r\n    PS C:> Disable-LMHash.ps1 -Disable\r\n    Disable Local LM Hash Storage\r\n.OUTPUTS\r\n    None\r\n.NOTES\r\n    Minimum OS Architecture Supported: Windows 10, Windows Server 2016\r\n    Release Notes:\r\n    Initial Release\r\nBy using this script, you indicate your acceptance of the following legal terms as well as our Terms of Use at https:\/\/www.ninjaone.com\/terms-of-use.\r\n    Ownership Rights: NinjaOne owns and will continue to own all right, title, and interest in and to the script (including the copyright). NinjaOne is giving you a limited license to use the script in accordance with these legal terms. \r\n    Use Limitation: You may only use the script for your legitimate personal or internal business purposes, and you may not share the script with another party. \r\n    Republication Prohibition: Under no circumstances are you permitted to re-publish the script in any script library or website belonging to or under the control of any other software provider. \r\n    Warranty Disclaimer: The script is provided \u201cas is\u201d and \u201cas available\u201d, without warranty of any kind. NinjaOne makes no promise or guarantee that the script will be free from defects or that it will meet your specific needs or expectations. \r\n    Assumption of Risk: Your use of the script is at your own risk. You acknowledge that there are certain inherent risks in using the script, and you understand and assume each of those risks. \r\n    Waiver and Release: You will not hold NinjaOne responsible for any adverse or unintended consequences resulting from your use of the script, and you waive any legal or equitable rights or remedies you may have against NinjaOne relating to your use of the script. \r\n    EULA: If you are a NinjaOne customer, your use of the script is subject to the End User License Agreement applicable to you (EULA).\r\n.COMPONENT\r\n    ProtocolSecurity\r\n#>\r\n\r\n[CmdletBinding(DefaultParameterSetName = \"Disable\")]\r\nparam (\r\n    [Parameter(Mandatory, ParameterSetName = \"Disable\")]\r\n    [switch]\r\n    $Disable,\r\n    [Parameter(Mandatory, ParameterSetName = \"Enable\")]\r\n    [switch]\r\n    $Enable\r\n)\r\n\r\nbegin {\r\n    function Test-IsElevated {\r\n        $id = [System.Security.Principal.WindowsIdentity]::GetCurrent()\r\n        $p = New-Object System.Security.Principal.WindowsPrincipal($id)\r\n        if ($p.IsInRole([System.Security.Principal.WindowsBuiltInRole]::Administrator))\r\n        { Write-Output $true }\r\n        else\r\n        { Write-Output $false }\r\n    }\r\n    function Set-ItemProp {\r\n        param (\r\n            $Path,\r\n            $Name,\r\n            $Value,\r\n            [ValidateSet(\"DWord\", \"QWord\", \"String\", \"ExpandedString\", \"Binary\", \"MultiString\", \"Unknown\")]\r\n            $PropertyType = \"DWord\"\r\n        )\r\n        New-Item -Path $Path -Force -ErrorAction SilentlyContinue | Out-Null\r\n        if ((Get-ItemProperty -Path $Path -Name $Name -ErrorAction SilentlyContinue)) {\r\n            Set-ItemProperty -Path $Path -Name $Name -Value $Value -Force -Confirm:$false | Out-Null\r\n        }\r\n        else {\r\n            New-ItemProperty -Path $Path -Name $Name -Value $Value -PropertyType $PropertyType -Force -Confirm:$false | Out-Null\r\n        }\r\n    }\r\n}\r\nprocess {\r\n    if (-not (Test-IsElevated)) {\r\n        Write-Error -Message \"Access Denied. Please run with Administrator privileges.\"\r\n        exit 1\r\n    }\r\n    $Path = \"HKLM:SYSTEMCurrentControlSetControlLsa\"\r\n    $Name = \"NoLMHash\"\r\n    $Value = if ($Enable) { 1 }elseif ($Disable) { 0 }else { throw \"No Param used.\" }\r\n    # Sets NoLMHash to 1\r\n    try {\r\n        Set-ItemProp -Path $Path -Name $Name -Value $Value\r\n    }\r\n    catch {\r\n        Write-Error $_\r\n        exit 1\r\n    }\r\n    Write-Host \"Set $Path$Name to $Value\"\r\n}\r\nend {}<\/pre>\n
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Analisi dettagliata<\/h2>\n
Lo script per configurare una archiviazione di LM hash in locale inizia impostando i requisiti della versione 5.1 di PowerShell. Ecco una descrizione passo per passo del suo funzionamento:<\/p>\n