Title

The 6to4 IPv6 transition technology must be disabled. (Cat II impact)

Discussion

IPv6 transition technologies, which tunnel packets through other protocols, do not provide visibility.

Check Content

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: \Software\Policies\Microsoft\Windows\TCPIP\v6Transition\ Value Name: 6to4_State Type: REG_SZ Value: Disabled

Fix Text

Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> TCPIP Settings -> IPv6 Transition Technologies -> "Set 6to4 State" to "Enabled: Disabled State".

Additional Identifiers

Rule ID:

Vulnerability ID: V-26575

Group Title:

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.