UCF STIG Viewer Logo

IPv6 source routing must be configured to highest protection.


Overview

Finding ID Version Rule ID IA Controls Severity
V-21955 WN08-SO-000037 SV-48430r2_rule ECSC-1 Low
Description
Configuring the system to disable IPv6 source routing protects against spoofing.
STIG Date
Windows 8/8.1 Security Technical Implementation Guide 2018-02-12

Details

Check Text ( C-45098r2_chk )
Analyze the system using the Security Configuration and Analysis snap-in. (See "Performing Analysis with the Security Configuration and Analysis Snap-in" in the STIG Overview document.)
Expand the Security Configuration and Analysis tree view.
Navigate to Local Policies -> Security Options.

(See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

If the value for "MSS: (DisableIPSourceRouting IPv6) IP source routing protection level (protects against packet spoofing)" is not set to "Highest protection, source routing is completely disabled", this is a finding.

The policy referenced configures the following registry value:

Registry Hive: HKEY_LOCAL_MACHINE
Subkey: \System\CurrentControlSet\Services\Tcpip6\Parameters\

Value Name: DisableIpSourceRouting

Type: REG_DWORD
Value: 2
Fix Text (F-41560r1_fix)
Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "MSS: (DisableIPSourceRouting IPv6) IP source routing protection level (protects against packet spoofing)" to "Highest protection, source routing is completely disabled".