Third party cookies must be blocked.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-44751	DTBC-0015	SV-57585r2_rule		Low

Description
Third party cookies are cookies which can be set by web page elements that are not from the domain that is in the browser's address bar. Enabling this setting prevents cookies from being set by web page elements that are not from the domain that is in the browser's address bar. Disabling this setting allows cookies to be set by web page elements that are not from the domain that is in the browser's address bar and prevents users from changing this setting. If this policy is left not set, third party cookies will be enabled but the user will be able to change that.

Description

Third party cookies are cookies which can be set by web page elements that are not from the domain that is in the browser's address bar. Enabling this setting prevents cookies from being set by web page elements that are not from the domain that is in the browser's address bar. Disabling this setting allows cookies to be set by web page elements that are not from the domain that is in the browser's address bar and prevents users from changing this setting. If this policy is left not set, third party cookies will be enabled but the user will be able to change that.

STIG	Date
Google Chrome Current Windows STIG	2019-01-28

Details

Check Text ( C-49533r3_chk )
Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If BlockThirdPartyCookies is not displayed under the Policy Name column or it is not set to true under the Policy Value column, then this is a finding. Windows method: 1. Start regedit 2. Navigate to HKLM\Software\Policies\Google\Chrome\ 3. If the BlockThirdPartyCookies value name does not exist or its value data is not set to 1, then this is a finding.

Check Text ( C-49533r3_chk )

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

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

Fix Text (F-49841r3_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\ Policy Name: Block third party cookies Policy State: Enabled Policy Value: N/A