Title

The Installation of desktop items is not set properly for the Restricted Sites Zone. (Cat II impact)

Discussion

Installation of items must have level of protection based upon the site being accessed.

Check Content

The policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page -> Restricted Sites Zone -> “Allow installation of desktop items” will be set to “Enabled” and “Disable”. Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4 Criteria: If the value 1800 is REG_DWORD = 3 (Disabled = 3), this is not a finding.

Fix Text

The policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page -> Restricted Sites Zone -> “Allow installation of desktop items” will be set to “Enabled” and “Disable”. Change the registry key HKLM\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4 Criteria: Set the value 1800 to REG_DWORD = 3 (Disabled = 3).

Additional Identifiers

Rule ID:

Vulnerability ID: V-6302

Group Title:

Expert Comments

CCIs tied to check.

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