TMA-IIS-2.7

Ensure 'passwordFormat' is not set to clear

高レベル 1自動iis

説明

The <credentials> element of the <authentication> element allows optional definitions of name and password for IIS Manager User accounts within the configuration file. Forms based authentication also uses these elements to define the users. IIS Manager Users can use the administration interface to connect to sites and applications in which they've been granted authorization. Note ... forms credentials passwordFormat must not be Clear in the root web.config or any site. PowerShell 5.1 with the WebAdministration module; run elevated.

チェック方法

監査方法: シェルコマンド

shell

Import-Module WebAdministration -ErrorAction Stop; $paths = @('MACHINE/WEBROOT') + @(Get-Website | ForEach-Object { "IIS:\Sites\$($_.Name)" }); $bad = @($paths | Where-Object { $c = Get-WebConfiguration -Filter 'system.web/authentication/forms/credentials' -PSPath $_; [string]$c.passwordFormat -eq 'Clear' }); if ($bad.Count -eq 0) { 'compliant' } else { 'noncompliant' }

期待される出力: compliant

修正方法

修正方法: ガイダンスまたは IaC パッチ

Set-WebConfigurationProperty -PSPath 'MACHINE/WEBROOT/APPHOST/<site>' -Filter system.web/authentication/forms/credentials -Name passwordFormat -Value SHA1 (and replace clear-text passwords with hashes)

プロパティ

オペレーティングシステム: すべて
タグ: iisauthentication
参照: CIS Microsoft IIS 10 Benchmark v1.2.1 - 2.7 Ensure 'passwordFormat' is not set to clear

このホストをチェック

監査が許可されているマシンで実行してください。スキャンは読み取り専用です。

shell

tmaegis scan --target iis