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🛡️ Microsoft Entra ID Guest Users are not reviewed on a regular basis🟢⚪

  • Contextual name: 🛡️ Guest Users are not reviewed on a regular basis🟢⚪
  • ID: /ce/ca/azure/microsoft-entra-id/guest-users-regular-review
  • Tags:
  • Policy Type: COMPLIANCE_POLICY
  • Policy Categories: SECURITY

Similar Policies​

Description​

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Description​

Microsoft Entra ID has native and extended identity functionality allowing you to invite people from outside your organization to be guest users in your cloud account and sign in with their own work, school, or social identities.

While an automated assessment procedure exists for this recommendation, the assessment status remains manual. Evaluating the appropriateness of guest users requires a manual review, as it depends on the specific needs and context of each organization and environment.

Rationale​

Guest users are typically added outside your employee on-boarding/off-boarding process and could potentially be overlooked indefinitely. To prevent this, guest users should be reviewed on a regular basis. During this audit, guest users should also be determined to not have administrative privileges.

Impact​

Before removing guest users, determine their use and scope. Like removing any user, there may be unforeseen consequences to systems if an account is removed without careful consideration.

Audit​

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Remediation​

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Remediating​

From Azure Portal​

  1. From Azure Home select the Portal Menu.
  2. Select Microsoft Entra ID.
  3. Under Manage, select Users.
  4. Click on Add filter.
  5. Select User type.
  6. Select Guest from the Value dropdown.
  7. Click Apply.
  8. Check the box next to all Guest users that are no longer required or are inactive.
  9. Click Delete.
  10. Click OK.

From Azure CLI​

Before deleting the user, set it to inactive using the ID from the Audit Procedure to determine if there are any dependent systems:

az ad user update --id <exampleaccountid@domain.com> --account-enabled {false}

After determining that there are no dependent systems delete the user:

Remove-AzureADUser -ObjectId <exampleaccountid@domain.com>

From Azure PowerShell​

Before deleting the user, set it to inactive using the ID from the Audit Procedure to determine if there are any dependent systems:

Set-AzureADUser -ObjectId "<exampleaccountid@domain.com>" -AccountEnabled false

After determining that there are no dependent systems delete the user:

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policy.yaml​

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Linked Framework Sections​

SectionSub SectionsInternal RulesPoliciesFlagsCompliance
💼 CIS Azure v5.0.0 → 💼 5.3.2 Ensure that guest users are reviewed on a regular basis (Manual)1no data
💼 Cloudaware Framework → 💼 User Account Management19no data