IPv6 source routing will be configured to highest protection.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-21955	3.155	SV-32449r1_rule		Low

Description
This check verifies Windows is configured to protect against IPv6 packet spoofing.

STIG	Date
Windows Server 2008 R2 Member Server Security Technical Implementation Guide	2019-03-13

Details

Check Text ( C-32915r1_chk )
Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. 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”, then 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

Check Text ( C-32915r1_chk )

Analyze the system using the Security Configuration and Analysis snap-in.
Expand the Security Configuration and Analysis tree view.
Navigate to Local Policies -> Security Options.

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”, then 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-28859r1_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”.