Sites ability to show pop-ups must be disabled.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-221561	DTBC-0004	SV-221561r615937_rule		Medium

Description
Chrome allows you to manage whether unwanted pop-up windows appear. Pop-up windows that are opened when the end user clicks a link are not blocked. If you enable this policy setting, most unwanted pop-up windows are prevented from appearing. If you disable this policy setting, pop-up windows are not prevented from appearing. If you disable this policy setting, scripts can continue to create pop-up windows, and pop-ups that hide other windows. Recommend configuring this setting to ‘2’ to help prevent malicious websites from controlling the pop-up windows or fooling users into clicking on the wrong window. If you do not configure this policy setting, most unwanted pop-up windows are prevented from appearing. If this policy is left not set, 'BlockPopups' will be used and the user will be able to change it. 1 = Allow all sites to show pop-ups 2 = Do not allow any site to show pop-ups

Description

Chrome allows you to manage whether unwanted pop-up windows appear. Pop-up windows that are opened when the end user clicks a link are not blocked. If you enable this policy setting, most unwanted pop-up windows are prevented from appearing. If you disable this policy setting, pop-up windows are not prevented from appearing. If you disable this policy setting, scripts can continue to create pop-up windows, and pop-ups that hide other windows. Recommend configuring this setting to ‘2’ to help prevent malicious websites from controlling the pop-up windows or fooling users into clicking on the wrong window. If you do not configure this policy setting, most unwanted pop-up windows are prevented from appearing. If this policy is left not set, 'BlockPopups' will be used and the user will be able to change it. 1 = Allow all sites to show pop-ups 2 = Do not allow any site to show pop-ups

STIG	Date
Google Chrome Current Windows Security Technical Implementation Guide	2021-04-20

Details

Check Text ( C-23276r570454_chk )
Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If DefaultPopupsSetting is not displayed under the Policy Name column or it is not set to 2, then this is a finding. Windows method: 1. Start regedit 2. Navigate to HKLM\Software\Policies\Google\Chrome\ 3. If the value name DefaultPopupsSetting does not exist or its value data is not set to 2, then this is a finding. Note: If AO Approved exceptions to this rule have been enabled, this is not a finding.

Check Text ( C-23276r570454_chk )

Universal method:
1. In the omnibox (address bar) type chrome://policy
2. If DefaultPopupsSetting is not displayed under the Policy Name column or it is not set to 2, then this is a finding.

Windows method:
1. Start regedit
2. Navigate to HKLM\Software\Policies\Google\Chrome\
3. If the value name DefaultPopupsSetting does not exist or its value data is not set to 2, then this is a finding.

Note: If AO Approved exceptions to this rule have been enabled, this is not a finding.

Fix Text (F-23265r478203_fix)
Windows group policy: 1. Open the group policy editor tool with gpedit.msc 2. Navigate to Policy Path: Computer Configuration\Administrative Templates\Google\Google Chrome\Content Settings\ Policy Name: Default popups setting Policy State: Enabled Policy Value: Do not allow any site to show popups