TMA-M365-5.2.3.2
Ensure custom banned passwords lists are used
Descripción
With Entra Password Protection, default global banned password lists are automatically applied to all users in an Entra ID tenant. To support business and security needs, custom banned password lists can be defined. When users change or reset their passwords, these banned password lists are checked to enforce the use of strong passwords. A custom banned password list should include some of the following examples: - Brand names - Product names - Locations, such as company headquarters - Company-specific internal terms - Abbreviations that have specific company meaning Creating a new password can be difficult regardless of one's technical background. It is common to look around one's environment for suggestions when building a password, however, this may include picking words specific to the organization as inspiration for a password. An adversary may employ what is called a 'mangler' t...
Cómo se verifica
Método de auditoría: Revisión manual
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To audit using the UI: 1. Navigate to Microsoft Entra admin center https://entra.microsoft.com/ 2. Expand Entra ID > Authentication methods and select Password protection. 3. Verify that Enforce custom list is set to Yes 4. Verify that Custom banned password list contains entries specific to the organization or matches a pre-determined list. To audit using PowerShell: 1. Connect to Microsoft Graph using Connect-MgGraph -Scopes "Directory.Read.All" 2. Run the following commands: $PwRuleSettings = '5cf42378-d67d-4f36-ba46-e8b86229381d' Get-MgGroupSetting | Where-Object TemplateId -eq $PwRuleSettings | Select-Object -ExpandProperty Values 3. Verify that EnableBannedPasswordCheck is True and BannedPasswordList is populated.
Cómo se corrige
Método de corrección: Guía o parche de infraestructura
To remediate using the UI: 1. Navigate to Microsoft Entra admin center https://entra.microsoft.com/ 2. Expand Entra ID > Authentication methods and select Password protection. 3. Set Enforce custom list to Yes 4. In Custom banned password list create a list using suggestions outlined in this document. 5. Click Save Note: Below is a list of examples that can be used as a starting place. The references section contains more suggestions. - Brand names - Product names - Locations, such as company headquarters - Company-specific internal terms - Abbreviations that have specific company meaning
Propiedades
- Sistemas operativos
- Cualquiera
- Etiquetas
- authm365saas
- Referencia
- CIS Microsoft 365 Foundations Benchmark v7.0.0 - 5.2.3.2 Ensure custom banned passwords lists are used