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V-223060

CAT II (Medium)

File downloads must be disallowed (Restricted Sites zone).

Rule ID

SV-223060r960963_rule

STIG

Microsoft Internet Explorer 11 Security Technical Implementation Guide

Version

V2R7

CCIs

CCI-000381

Discussion

Sites located in the Restricted Sites Zone are more likely to contain malicious payloads and therefore downloads from this zone should be blocked. Files should not be able to be downloaded from sites that are considered restricted. This policy setting allows you to manage whether file downloads are permitted from the zone. This option is determined by the zone of the page with the link causing the download, not the zone from which the file is delivered.

Check Content

The policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page -> Restricted Sites Zone -> 'Allow file downloads' must be 'Enabled', and 'Disable' selected from the drop-down box. 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 "1803" is REG_DWORD = 3, this is not a finding.

Fix Text

Set the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page -> Restricted Sites Zone -> 'Allow file downloads' to 'Enabled', and select 'Disable' from the drop-down box.