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M365FoundationsCISReport/source/tests/Test-ExternalSharingCalendars.ps1

83 lines
3.3 KiB
PowerShell

function Test-ExternalSharingCalendars {
[CmdletBinding()]
[OutputType([CISAuditResult])]
param (
# Aligned
# Parameters can be added if needed
)
begin {
# Dot source the class script if necessary
#. .\source\Classes\CISAuditResult.ps1
# Initialization code, if needed
$recnum = "1.3.3"
# Conditions for 1.3.3 (L2) Ensure 'External sharing' of calendars is not available (Automated)
#
# Validate test for a pass:
# - Confirm that the automated test results align with the manual audit steps outlined in the CIS benchmark.
# - Specific conditions to check:
# - Condition A: In the Microsoft 365 admin center, external calendar sharing is disabled.
# - Condition B: Using the Exchange Online PowerShell Module, the `OrganizationConfig` property `ExternalSharingEnabled` is set to `False`.
#
# Validate test for a fail:
# - Confirm that the failure conditions in the automated test are consistent with the manual audit results.
# - Specific conditions to check:
# - Condition A: In the Microsoft 365 admin center, external calendar sharing is enabled.
# - Condition B: Using the Exchange Online PowerShell Module, the `OrganizationConfig` property `ExternalSharingEnabled` is set to `True`.
}
process {
try {
# Step: Retrieve sharing policies related to calendar sharing
$sharingPolicies = Get-CISExoOutput -Rec $recnum
# Step (Condition A & B: Pass/Fail): Check if calendar sharing is disabled in all applicable policies
$isExternalSharingDisabled = $true
$sharingPolicyDetails = @()
foreach ($policy in $sharingPolicies) {
if ($policy.Enabled -eq $true) {
$isExternalSharingDisabled = $false
$sharingPolicyDetails += "$($policy.Name): Enabled"
}
}
# Step: Prepare failure reasons and details based on compliance (Condition A & B: Fail)
$failureReasons = if (-not $isExternalSharingDisabled) {
"Calendar sharing with external users is enabled in one or more policies."
}
else {
"N/A"
}
# Step: Prepare details for the audit result (Condition A & B: Pass/Fail)
$details = if ($isExternalSharingDisabled) {
"Calendar sharing with external users is disabled."
}
else {
"Enabled Sharing Policies: $($sharingPolicyDetails -join ', ')"
}
# Step: Create and populate the CISAuditResult object
$params = @{
Rec = $recnum
Result = $isExternalSharingDisabled
Status = if ($isExternalSharingDisabled) { "Pass" } else { "Fail" }
Details = $details
FailureReason = $failureReasons
}
$auditResult = Initialize-CISAuditResult @params
}
catch {
$LastError = $_
$auditResult = Get-TestError -LastError $LastError -recnum $recnum
}
}
end {
# Return the audit result
return $auditResult
}
}