Title

Internet Explorer is not configured to require consistent security zone settings to all users. (Cat II impact)

Discussion

This setting enforces consistent security zone settings to all users of the computer. Security Zones control browser behavior at various web sites and it is desirable to maintain a consistent policy for all users of a machine.

Check Content

If the following registry value doesn’t exist or is not configured as specified this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\ Value Name: Security_HKLM_only Type: REG_DWORD Value: 1

Fix Text

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer “Security Zones: Use only machine settings” to “Enabled”.

Additional Identifiers

Rule ID: SV-3427r1_rule

Vulnerability ID: V-3427

Group Title:

Expert Comments

CCIs tied to check.

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