TMA-IIS-4.11

Ensure 'Dynamic IP Address Restrictions' is enabled

보통레벨 1자동iis

설명

Dynamic IP address filtering allows administrators to configure the server to block access for IPs that exceed the specified number of requests or request frequency. Note: Ensure that you receive the Forbidden page once the block has been enforced. Dynamic IP Address Restrictions denyByConcurrentRequests must be enabled at server level (fails when the IP and Domain Restrictions feature is not installed). Tune maxConcurrentRequests to your traffic. PowerShell 5.1 with the WebAdministration module; run elevated. CIS marks this recommendation Manual; the automated check implements its audit procedure.

점검 방법

감사 방식: 셸 명령

shell

Import-Module WebAdministration -ErrorAction Stop; $c = Get-WebConfiguration -Filter 'system.webServer/security/dynamicIpSecurity/denyByConcurrentRequests' -PSPath 'MACHINE/WEBROOT/APPHOST' -ErrorAction Stop; if ($c.enabled -eq $true) { 'compliant' } else { 'noncompliant' }

예상 출력: compliant

조치 방법

조치 방식: 가이드 또는 인프라 패치

Set-WebConfigurationProperty -PSPath 'MACHINE/WEBROOT/APPHOST' -Filter system.webServer/security/dynamicIpSecurity/denyByConcurrentRequests -Name enabled -Value True; set maxConcurrentRequests as appropriate

속성

운영 체제: 모두
태그: iisdos
참고 자료: CIS Microsoft IIS 10 Benchmark v1.2.1 - 4.11 Ensure 'Dynamic IP Address Restrictions' is enabled

이 호스트 점검하기

감사 권한이 있는 시스템에서 실행하세요. 스캔은 읽기 전용입니다.

shell

tmaegis scan --target iis