Files
M365FoundationsCISReport/source/tests/Test-DisallowInfectedFilesDownload.ps1

86 lines
3.8 KiB
PowerShell

function Test-DisallowInfectedFilesDownload {
[CmdletBinding()]
[OutputType([CISAuditResult])]
param (
# Aligned
# Define your parameters here if needed
)
begin {
# Dot source the class script if necessary
#. .\source\Classes\CISAuditResult.ps1
# Initialization code, if needed
$recnum = "7.3.1"
}
process {
try {
# 7.3.1 (L2) Ensure Office 365 SharePoint infected files are disallowed for download
#
# 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: The `DisallowInfectedFileDownload` setting is set to `True`.
# - Condition B: The setting prevents users from downloading infected files as detected by Defender for Office 365.
# - Condition C: Verification using the PowerShell command confirms that the setting is correctly configured.
#
# 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: The `DisallowInfectedFileDownload` setting is not set to `True`.
# - Condition B: The setting does not prevent users from downloading infected files.
# - Condition C: Verification using the PowerShell command indicates that the setting is incorrectly configured.
# Retrieve the SharePoint tenant configuration
$SPOTenantDisallowInfectedFileDownload = Get-CISSpoOutput -Rec $recnum
# Condition A: The `DisallowInfectedFileDownload` setting is set to `True`
$isDisallowInfectedFileDownloadEnabled = $SPOTenantDisallowInfectedFileDownload.DisallowInfectedFileDownload
# Prepare failure reasons and details based on compliance
$failureReasons = if (-not $isDisallowInfectedFileDownloadEnabled) {
"Downloading infected files is not disallowed." # Condition B: The setting does not prevent users from downloading infected files
}
else {
"N/A"
}
$details = if ($isDisallowInfectedFileDownloadEnabled) {
"DisallowInfectedFileDownload: True" # Condition C: Verification confirms the setting is correctly configured
}
else {
"DisallowInfectedFileDownload: False" # Condition C: Verification indicates the setting is incorrectly configured
}
# Create and populate the CISAuditResult object
$params = @{
Rec = $recnum
Result = $isDisallowInfectedFileDownloadEnabled
Status = if ($isDisallowInfectedFileDownloadEnabled) { "Pass" } else { "Fail" }
Details = $details
FailureReason = $failureReasons
}
$auditResult = Initialize-CISAuditResult @params
}
catch {
Write-Error "An error occurred during the test: $_"
# Retrieve the description from the test definitions
$testDefinition = $script:TestDefinitionsObject | Where-Object { $_.Rec -eq $recnum }
$description = if ($testDefinition) { $testDefinition.RecDescription } else { "Description not found" }
$script:FailedTests.Add([PSCustomObject]@{ Rec = $recnum; Description = $description; Error = $_ })
# Call Initialize-CISAuditResult with error parameters
$auditResult = Initialize-CISAuditResult -Rec $recnum -Failure
}
}
end {
# Return the audit result
return $auditResult
}
}