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The system must be configured to prevent IP source routing.


Overview

Finding ID Version Rule ID IA Controls Severity
V-63559 WN10-CC-000025 SV-78049r1_rule Medium
Description
Configuring the system to disable IP source routing protects against spoofing.
STIG Date
Windows 10 Security Technical Implementation Guide 2018-04-06

Details

Check Text ( C-64309r1_chk )
If the following registry value does not exist or is not configured as specified, this is a finding:

Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: \SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\

Value Name: DisableIPSourceRouting

Value Type: REG_DWORD
Value: 2
Fix Text (F-69489r1_fix)
Configure the policy value for Computer Configuration >> Administrative Templates >> MSS (Legacy) >> "MSS: (DisableIPSourceRouting) IP source routing protection level (protects against packet spoofing)" to "Highest protection, source routing is completely disabled".

This policy setting requires the installation of the MSS-Legacy custom templates included with the STIG package. "MSS-Legacy.admx" and " MSS-Legacy.adml" must be copied to the \Windows\PolicyDefinitions and \Windows\PolicyDefinitions\en-US directories respectively.