89 lines
3.3 KiB
PowerShell
89 lines
3.3 KiB
PowerShell
function Test-RestrictOutlookAddins {
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[CmdletBinding()]
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param (
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# Parameters could include credentials or other necessary data
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)
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begin {
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# Initialization code
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$auditResult = [CISAuditResult]::new()
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$customPolicyFailures = @()
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$defaultPolicyFailureDetails = @()
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$relevantRoles = @('My Custom Apps', 'My Marketplace Apps', 'My ReadWriteMailbox Apps')
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}
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process {
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# Main functionality
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# 6.3.1 (L2) Ensure users installing Outlook add-ins is not allowed
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# Check all mailboxes for custom policies with unallowed add-ins
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$roleAssignmentPolicies = Get-EXOMailbox | Select-Object -Unique RoleAssignmentPolicy
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if ($roleAssignmentPolicies.RoleAssignmentPolicy) {
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foreach ($policy in $roleAssignmentPolicies) {
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if ($policy.RoleAssignmentPolicy) {
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$rolePolicyDetails = Get-RoleAssignmentPolicy -Identity $policy.RoleAssignmentPolicy
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$foundRoles = $rolePolicyDetails.AssignedRoles | Where-Object { $_ -in $relevantRoles }
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if ($foundRoles) {
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$customPolicyFailures += "Policy: $($policy.RoleAssignmentPolicy): Roles: $($foundRoles -join ', ')"
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}
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}
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}
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}
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# Check Default Role Assignment Policy
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$defaultPolicy = Get-RoleAssignmentPolicy "Default Role Assignment Policy"
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$defaultPolicyRoles = $defaultPolicy.AssignedRoles | Where-Object { $_ -in $relevantRoles }
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if ($defaultPolicyRoles) {
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$defaultPolicyFailureDetails = $defaultPolicyRoles
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}
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}
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end {
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# Prepare result object
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$auditResult.Rec = "6.3.1"
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$auditResult.CISControl = "9.4"
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$auditResult.CISDescription = "Restrict Unnecessary or Unauthorized Browser and Email Client Extensions"
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$auditResult.ELevel = "E3"
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$auditResult.ProfileLevel = "L2"
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$auditResult.IG1 = $false
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$auditResult.IG2 = $true
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$auditResult.IG3 = $true
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$auditResult.RecDescription = "Ensure users installing Outlook add-ins is not allowed"
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$detailsString = ""
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if ($customPolicyFailures) {
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$detailsString += "Custom Policy Failures: | "
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# Use pipes or tabs here instead of newlines
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$detailsString += ($customPolicyFailures -join " | ")
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}
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else {
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$detailsString += "Custom Policy Failures: None | "
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}
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$detailsString += "Default Role Assignment Policy: "
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if ($defaultPolicyFailureDetails) {
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$detailsString += ($defaultPolicyFailureDetails -join ', ')
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}
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else {
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$detailsString += "Compliant"
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}
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if ($customPolicyFailures -or $defaultPolicyFailureDetails) {
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$auditResult.Result = $false
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$auditResult.Status = "Fail"
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$auditResult.Details = $detailsString
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$auditResult.FailureReason = "Unauthorized Outlook add-ins found in custom or default policies."
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}
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else {
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$auditResult.Result = $true
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$auditResult.Status = "Pass"
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$auditResult.Details = "No unauthorized Outlook add-ins found in custom or default policies."
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$auditResult.FailureReason = "N/A"
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}
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# Return auditResult
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return $auditResult
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}
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} |