SHELL/6.5.1.ps1

$CheckId = "6.5.1"
$Title = "Ensure modern authentication for Exchange Online is enabled"
$Level = "L1"
$BenchmarkType = "Automated"

try {
    $OrgConfig = Get-OrganizationConfig -ErrorAction Stop
    $OAuth2Enabled = [bool]$OrgConfig.OAuth2ClientProfileEnabled

    $Pass = $OAuth2Enabled
    $Status = if ($Pass) { "PASS" } else { "FAIL" }

    [pscustomobject]@{
        CheckId = $CheckId
        Title = $Title
        Level = $Level
        BenchmarkType = $BenchmarkType
        Status = $Status
        Pass = $Pass
        Evidence = [pscustomobject]@{
            OAuth2ClientProfileEnabled = $OAuth2Enabled
            SourceDocument = "CIS_Microsoft_365_Foundations_Benchmark_v6.0.1"
        }
        Error = if ($Pass) { $null } else { "OAuth2ClientProfileEnabled is False. It must be True." }
        Timestamp = Get-Date
    }
}
catch {
    [pscustomobject]@{
        CheckId = $CheckId
        Title = $Title
        Level = $Level
        BenchmarkType = $BenchmarkType
        Status = "ERROR"
        Pass = $null
        Evidence = [pscustomobject]@{
            SourceDocument = "CIS_Microsoft_365_Foundations_Benchmark_v6.0.1"
        }
        Error = $_.Exception.Message
        Timestamp = Get-Date
    }
}