Controls/EDCA-IAC-023.json

{
  "id": "EDCA-IAC-023",
  "title": "Mobile device mailbox policy requires a device password",
  "description": "The PasswordEnabled property on the default mobile device mailbox policy MUST be True. Requiring a password prevents unauthorised access to the device and the Exchange mailbox data on it. The CIS benchmark requires device passwords to be mandatory.",
  "verify": true,
  "subject": "Organization",
  "category": "Identity and Access Control",
  "severity": "High",
  "severityWeight": 8,
  "frameworks": [
    "Best Practice",
    "CIS"
  ],
  "references": [
    {
      "name": "CIS 3.10 (L1): Ensure Require password is set to True",
      "url": "https://www.cisecurity.org/benchmark/microsoft_exchange_server"
    },
    {
      "name": "Mobile device mailbox policies in Exchange Server",
      "url": "https://learn.microsoft.com/exchange/clients/exchange-activesync/mobile-device-mailbox-policies"
    }
  ],
  "remediation": {
    "automatable": true,
    "description": "Require a device password in the default mobile device mailbox policy.",
    "scriptTemplate": "# Require a device password in the default mobile device mailbox policy.\nSet-MobileDeviceMailboxPolicy -Identity Default -PasswordEnabled $true"
  },
  "considerations": "Requiring a password on mobile devices may cause friction for users who previously had no PIN. Communicate this change in advance and provide instructions for setting a compliant password.",
  "roles": [
    "Mailbox"
  ]
}