{"id":208428,"date":"2024-01-31T13:11:40","date_gmt":"2024-01-31T13:11:40","guid":{"rendered":"https:\/\/www.ninjaone.com\/script-hub\/powershell-configurer-stockage-hachages-lm\/"},"modified":"2024-03-04T18:42:08","modified_gmt":"2024-03-04T18:42:08","slug":"powershell-configurer-stockage-hachages-lm","status":"publish","type":"script_hub","link":"https:\/\/www.ninjaonesandbox.dev\/fr\/script-hub\/powershell-configurer-stockage-hachages-lm\/","title":{"rendered":"Powershell\u00a0: comment configurer efficacement le stockage local des hachages LM\u00a0?"},"content":{"rendered":"

La configuration du stockage local des hachages LM<\/strong> joue un r\u00f4le essentiel dans les syst\u00e8mes bas\u00e9s sur Windows. Pour les professionnels de l’informatique, la configuration de ce stockage peut avoir une incidence consid\u00e9rable sur la s\u00e9curit\u00e9 du syst\u00e8me. Le script PowerShell fourni simplifie \u00e9l\u00e9gamment le processus d’activation ou de d\u00e9sactivation de cette fonctionnalit\u00e9. Voyons ce qu’il signifie et comment il fonctionne.<\/p>\n

Contexte<\/h2>\n

Le hachage LM (LAN Manager) existe depuis un certain temps et est connu pour ses vuln\u00e9rabilit\u00e9s. Au fil du temps, de nombreux sp\u00e9cialistes de la s\u00e9curit\u00e9 ont recommand\u00e9 de d\u00e9sactiver les hachages LM pour renforcer la s\u00e9curit\u00e9 du syst\u00e8me. Les configurations manuelles pouvant \u00eatre fastidieuses, les outils et les scripts (comme celui fourni ici) deviennent des atouts inestimables pour les professionnels de l’informatique et les fournisseurs de services g\u00e9r\u00e9s (MSP)<\/a>.<\/p>\n

Le script<\/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.ninjaonesandbox.dev\/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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Obtenir l’acc\u00e8s<\/a><\/p>\n<\/div>\n
Description d\u00e9taill\u00e9e<\/h2>\n
Le script commence par d\u00e9finir les conditions requises pour la version\u00a05.1 de PowerShell. Voici une description d\u00e9taill\u00e9e de son fonctionnement\u00a0:<\/p>\n