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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
STIG Date
Google Chrome Current Windows Security Technical Implementation Guide 2022-09-09

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.
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