Free DISA STIG and SRG Library | Vaulted

Vulnerabilities (34)

Firewall traversal from remote host must be disabled.

Finding ID
DTBC-0001
Rule ID
SV-57545r4_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0001 - Disable firewall traversal
CCI
CCI-001414
Target Key
(None)
Documentable
No
Discussion

Remote connections should never be allowed that bypass the firewall, as there is no way to verify if they can be trusted. Enables usage of STUN and relay servers when remote clients are trying to establish a connection to this machine. If this setting is enabled, then remote clients can discover and connect to this machine even if they are separated by a firewall. If this setting is disabled and outgoing UDP connections are filtered by the firewall, then this machine will only allow connections from client machines within the local network. If this policy is left not set the setting will be enabled.

Fix Text

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\Configure remote access options Policy Name: Enable firewall traversal from remote access host Policy State: Disabled Policy Value: N/A

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If RemoteAccessHostFirewallTraversal is not displayed under the Policy Name column or it is not set to false under the Policy Value column, then this is a finding. Windows registry: 1. Start regedit 2. Navigate to HKLM\Software\Policies\Google\Chrome\ 3. If the RemoteAccessHostFirewallTraversal value name does not exist or its value data is not set to 0, then this is a finding.

Sites ability for showing desktop notifications must be disabled.

Finding ID
DTBC-0003
Rule ID
SV-57547r2_rule
Severity
Cat III
CCE
(None)
Group Title
DTBC0003 - Block desktop notifications
CCI
CCI-000381
Target Key
(None)
Documentable
No
Discussion

Chrome by default allows websites to display notifications on the desktop. This check allows you to set whether or not this is permitted. Displaying desktop notifications can be allowed by default, denied by default or the user can be asked every time a website wants to show desktop notifications. If this policy is left not set, 'AskNotifications' will be used and the user will be able to change it. 1 = Allow sites to show desktop notifications 2 = Do not allow any site to show desktop notifications 3 = Ask every time a site wants to show desktop notifications

Fix Text

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 notification setting Policy State: Enabled Policy Value: Do not allow any site to show desktop notifications

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If DefaultNotificationsSetting 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 DefaultNotificationsSetting value name does not exist or its value data is not set to 2, then this is a finding.

Sites ability to show pop-ups must be disabled.

Finding ID
DTBC-0004
Rule ID
SV-57553r2_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0004 - Disable pop-ups
CCI
CCI-000381
Target Key
(None)
Documentable
No
Discussion

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

Fix Text

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

Check Content

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.

Site tracking users location must be disabled.

Finding ID
DTBC-0002
Rule ID
SV-57557r2_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0002 - Disallow Location Tracking
CCI
CCI-001166
Target Key
(None)
Documentable
No
Discussion

Website tracking is the practice of gathering information as to which websites were accesses by a browser. The common method of doing this is to have a website create a tracking cookie on the browser. If the information of what sites are being accessed is made available to unauthorized persons, this violates confidentiality requirements, and over time poses a significant OPSEC issue. This policy setting allows you to set whether websites are allowed to track the user’s physical location. Tracking the user’s physical location can be allowed by default, denied by default or the user can be asked every time a website requests the physical location. 1 = Allow sites to track the user’s physical location 2 = Do not allow any site to track the user’s physical location 3 = Ask whenever a site wants to track the user’s physical location

Fix Text

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 geolocation setting Policy State: Enabled Policy Value: Do not allow any site to track the users' physical location

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If DefaultGeolocationSetting 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 DefaultGeolocationSetting value name does not exist or its value data is not set to 2, then this is a finding.

Extensions installation must be blacklisted by default.

Finding ID
DTBC-0005
Rule ID
SV-57561r2_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0005 - Blacklist extension installation
CCI
CCI-001687
Target Key
(None)
Documentable
No
Discussion

Extensions are developed by third party sources and are designed to extend Google Chrome's functionality. An extension can be made by anyone, to do and access almost anything on a system; this means they pose a high risk to any system that would allow all extensions to be installed by default. Allows you to specify which extensions the users can NOT install. Extensions already installed will be removed if blacklisted. A blacklist value of '*' means all extensions are blacklisted unless they are explicitly listed in the whitelist. If this policy is left not set the user can install any extension in Google Chrome.

Fix Text

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\Extensions\ Policy Name: Configure extension installation blacklist Policy State: Enabled Policy Value: *

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If ExtensionInstallBlacklist is not displayed under the Policy Name column or it is not set to * under the Policy Value column, then this is a finding. Windows method: 1. Start regedit 2. Navigate to HKLM\Software\Policies\Google\Chrome\ExtensionInstallBlacklist 3. If the a registry value name of 1 does not exist under that key or its value is not set to *, then this is a finding.

Extensions that are approved for use must be whitelisted.

Finding ID
DTBC-0006
Rule ID
SV-57563r2_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0006 - Extension whitelist
CCI
CCI-001170
Target Key
(None)
Documentable
No
Discussion

The whitelist should only contain organizationally approved extensions. This is to prevent a user from accidently whitelisitng a malicious extension. This policy allows you to specify which extensions are not subject to the blacklist. A blacklist value of ‘*’ means all extensions are blacklisted and users can only install extensions listed in the whitelist. By default, no extensions are whitelisted. If all extensions have been blacklisted by policy, then the whitelist policy can be used to allow specific extensions to be installed. Administrators should determine which extensions should be allowed to be installed by their users. If no extensions are whitelisted, then no extensions can be installed when combined with blacklisting all extensions.

Fix Text

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\Extensions\ Policy Name: Configure extension installation whitelist Policy State: Enabled Policy Value: oiigbmnaadbkfbmpbfijlflahbdbdgdf (or 1) Note: oiigbmnaadbkfbmpbfijlflahbdbdgdf is the extension ID for scriptno(a commonly used Chrome extension)

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If ExtensionInstallWhitelist is not displayed under the Policy Name column or it is not set to oiigbmnaadbkfbmpbfijlflahbdbdgdf or a list of administrator approved extension IDs, then this is a finding. Windows method: 1. Start regedit 2. Navigate to the key HKLM\Software\Policies\Google\Chrome\ExtensionInstallWhitelist 3. If the ExtensionInstallWhitelist key is not set to 1 or oiigbmnaadbkfbmpbfijlflahbdbdgdf or a list of administrator-approved extension IDs, then this is a finding.

The default search providers name must be set.

Finding ID
DTBC-0007
Rule ID
SV-57567r2_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0007 - Default search provider name
CCI
CCI-000381
Target Key
(None)
Documentable
No
Discussion

Specifies the name of the default search provider that is to be used, if left empty or not set, the host name specified by the search URL will be used. This policy is only considered if the 'DefaultSearchProviderEnabled' policy is enabled. When doing internet searches it is important to use an encrypted connection via https.

Fix Text

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\Default search provider\ Policy Name: Default search provider name Policy State: Enabled Policy Value: set to an organization approved encrypted search provider that corresponds to the encrypted search provider set in DTBC-0008(ex. Google Encrypted, Bing Encrypted)

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If DefaultSearchProviderName is displayed under the Policy Name column or it is not set to an organization approved encrypted search provider that corresponds to the encrypted search provider set in DTBC-0008(ex. Google Encrypted, Bing Encrypted) 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 DefaultSearchProviderName value name does not exist or it is not set to an organization approved encrypted search provider that corresponds to the encrypted search provider set in DTBC-0008(ex. Google Encrypted, Bing Encrypted), then this is a finding.

The default search provider URL must be set to perform encrypted searches.

Finding ID
DTBC-0008
Rule ID
SV-57569r2_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0008 - Encrypted searching
CCI
CCI-000381
Target Key
(None)
Documentable
No
Discussion

Specifies the URL of the search engine used when doing a default search. The URL should contain the string '{searchTerms}', which will be replaced at query time by the terms the user is searching for. This option must be set when the 'DefaultSearchProviderEnabled' policy is enabled and will only be respected if this is the case. When doing internet searches it is important to use an encrypted connection via https.

Fix Text

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\Default search provider\ Policy Name: Default search provider search URL Policy State: Enabled Policy Value: must be set to an organization approved encrypted search string (ex. https://www.google.com/#q={searchTerms} or https://www.bing.com/search?q={searchTerms} )

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If DefaultSearchProviderSearchURL is not displayed under the Policy Name column or it is not set to an organization approved encrypted search string (ex. https://www.google.com/#q={searchTerms} or https://www.bing.com/search?q={searchTerms} ) 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 DefaultSearchProviderSearchURL value name does not exist or its value data is not set to an organization approved encrypted search string (ex. https://www.google.com/#q={searchTerms} or https://www.bing.com/search?q={searchTerms} ) then this is a finding.

Default search provider must be enabled.

Finding ID
DTBC-0009
Rule ID
SV-57571r2_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0009 - Default search provider
CCI
CCI-000381
Target Key
(None)
Documentable
No
Discussion

Policy enables the use of a default search provider. If you enable this setting, a default search is performed when the user types text in the omnibox that is not a URL. You can specify the default search provider to be used by setting the rest of the default search policies. If these are left empty, the user can choose the default provider. If you disable this setting, no search is performed when the user enters non-URL text in the omnibox. If you enable or disable this setting, users cannot change or override this setting in Google Chrome. If this policy is left not set, the default search provider is enabled, and the user will be able to set the search provider list.

Fix Text

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\Default search provider\ Policy Name: Enable the default search provider Policy State: Enabled Policy Value: N/A

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If DefaultSearchProviderEnabled 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 DefaultSearchProviderEnabled value name does not exist or its value data is not set to 1, then this is a finding.

The Password Manager must be disabled.

Finding ID
DTBC-0011
Rule ID
SV-57575r2_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0011 - Password Manager
CCI
CCI-000381
Target Key
(None)
Documentable
No
Discussion

Enables saving passwords and using saved passwords in Google Chrome. Malicious sites may take advantage of this feature by using hidden fields gain access to the stored information. If you enable this setting, users can have Google Chrome memorize passwords and provide them automatically the next time they log in to a site. If you disable this setting, users are not able to save passwords or use already saved passwords. If you enable or disable this setting, users cannot change or override this setting in Google Chrome. If this policy is left not set, this will be enabled but the user will be able to change it. ListPassword manager should not be used as it stores passwords locally.

Fix Text

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\Password Manager\ Policy Name: Enable the password manager Policy State: Disabled Policy Value: N/A

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If PasswordManagerEnabled is not displayed under the Policy Name column or it is not set to false 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 PasswordManagerEnabled value name does not exist or its value data is not set to 0, then this is a finding.

The running of outdated plugins must be disabled.

Finding ID
DTBC-0013
Rule ID
SV-57579r2_rule
Severity
Cat I
CCE
(None)
Group Title
DTBC0013 - Outdated plugins
CCI
CCI-001232
Target Key
(None)
Documentable
No
Discussion

Running outdated plugins could lead to system compromise through the use of known exploits. Having plugins that updated to the most current version ensures the smallest attack surfuce possible. If you enable this setting, outdated plugins are used as normal plugins. If you disable this setting, outdated plugins will not be used and users will not be asked for permission to run them. If this setting is not set, users will be asked for permission to run outdated plugins.

Fix Text

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: Allow running plugins that are outdated Policy State: Disabled Policy Value: N/A

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If AllowOutdatedPlugins is not displayed under the Policy Name column or it is not set to false under the Policy Name column, then this is a finding. Windows method: 1. Start regedit 2. Navigate to HKLM\Software\Policies\Google\Chrome 3. If the AllowOutdatedPlugins value name does not exist or its value data is not set to 0, then this is a finding.

Plugins requiring authorization must ask for user permission.

Finding ID
DTBC-0014
Rule ID
SV-57583r2_rule
Severity
Cat I
CCE
(None)
Group Title
DTBC0014 - Plugins requiring authorization
CCI
CCI-001687
Target Key
(None)
Documentable
No
Discussion

Policy allows Google Chrome to run plugins that require authorization. If you enable this setting, plugins that are not outdated will always run. If this setting is disabled or not set, users will be not be asked for permission to run plugins that require authorization. These are plugins that can compromise security.

Fix Text

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: Always runs plugins that require authorization Policy State: Disabled Policy Value: N/A

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If AlwaysAuthorizePlugins is not displayed under the Policy Name column or it is not set to false 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 AlwaysAuthorizePlugins value name does not exist or its value data is not set to 0, then this is a finding.

Third party cookies must be blocked.

Finding ID
DTBC-0015
Rule ID
SV-57585r2_rule
Severity
Cat III
CCE
(None)
Group Title
DTBC0015 - Third party cookies
CCI
CCI-000166
Target Key
(None)
Documentable
No
Discussion

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.

Fix Text

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

Check Content

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.

Background processing must be disabled.

Finding ID
DTBC-0017
Rule ID
SV-57587r2_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0017 - Disable background processing
CCI
CCI-001695
Target Key
(None)
Documentable
No
Discussion

Determines whether a Google Chrome process is started on OS login that keeps running when the last browser window is closed, allowing background apps to remain active. The background process displays an icon in the system tray and can always be closed from there. If this policy is set to True, background mode is enabled and cannot be controlled by the user in the browser settings. If this policy is set to False, background mode is disabled and cannot be controlled by the user in the browser settings. If this policy is left unset, background mode is initially disabled and can be controlled by the user in the browser settings.' - Google Chrome Administrators Policy ListThis setting, if enabled, allows Google Chrome to run at all times. There is two reasons that this is not wanted. First, it can tie up system resources that might otherwise be needed. Second, it does not make it obvious to the user that it is running and poorly written extensions could cause instability on the system.

Fix Text

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: Continue running background apps when Google Chrome is closed Policy State: Disabled Policy Value: N/A

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If BackgroundModeEnabled is not displayed under the Policy Name column and it is not set to false 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 BackgroundModeEnabled value name does not exist or its value data is not set to 0, then this is a finding.

3D Graphics APIs must be disabled.

Finding ID
DTBC-0019
Rule ID
SV-57591r3_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0019 - 3D Graphics APIs
CCI
CCI-000366
Target Key
(None)
Documentable
No
Discussion

Disable support for 3D graphics APIs. Enabling this setting prevents web pages from accessing the graphics processing unit (GPU). Specifically, web pages cannot access the WebGL API and plugins cannot use the Pepper 3D API. Disabling this setting or leaving it not set potentially allows web pages to use the WebGL API and plugins to use the Pepper 3D API. The default settings of the browser may still require command line arguments to be passed in order to use these APIs. Chrome uses WebGL to render graphics using the GPU. There are few sites that currently take advantage of this feature. Since there is unlikely to be an operational impact, it is recommended that this feature is turned off in order to reduce the attack surface.

Fix Text

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: Disable support for 3D graphics APIs Policy State: Enabled Policy Value: N/A

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If "Disable3DAPIs" is not displayed under the Policy Name column or it is not set to true under the Policy Value column, this is a finding. Note: If 3D APIs are required by mission, this is not a finding. Windows method: 1. Start regedit 2. Navigate to HKLM\Software\Policies\Google\Chrome\ 3. If the "Disable3DAPIs" value name does not exist or its value data is not set to "1", this is a finding. Note: If 3D APIs are required by mission, this is not a finding.

Google Data Synchronization must be disabled.

Finding ID
DTBC-0020
Rule ID
SV-57593r2_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0020 - Google Data Synchronization
CCI
CCI-002333
Target Key
(None)
Documentable
No
Discussion

Disables data synchronization in Google Chrome using Google-hosted synchronization services and prevents users from changing this setting. If you enable this setting, users cannot change or override this setting in Google Chrome. If this policy is left not set the user will be able to enable Google Sync. Google Sync is used to sync information between different user devices, this data is then stored on Google owned servers. The synced data may consist of information such as email, calendars, viewing history, etc. This feature must be disabled because the organization does not have control over the servers the data is stored on.

Fix Text

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: Disable synchronization of data with Google Policy State: Enabled Policy Value: N/A

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If SyncDisabled 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 SyncDisabled value name does not exist or its value data is not set to 1, then this is a finding.

The URL protocol schema javascript must be disabled.

Finding ID
DTBC-0021
Rule ID
SV-57595r3_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0021 - URL protocol schemas
CCI
CCI-000381
Target Key
(None)
Documentable
No
Discussion

Each access to a URL is handled by the browser according to the URL's "scheme". The "scheme" of a URL is the section before the ":". The term "protocol" is often mistakenly used for a "scheme". The difference is that the scheme is how the browser handles a URL and the protocol is how the browser communicates with a service. If a scheme or its associated protocol used by a browser is insecure or obsolete, vulnerabilities can be exploited resulting in exposed data or unrestricted access to the browser's system. The browser must be configured to disable the use of insecure and obsolete schemas (protocols). This policy disables the listed protocol schemes in Google Chrome, URLs using a scheme from this list will not load and cannot be navigated to. If this policy is left not set or the list is empty all schemes will be accessible in Google Chrome.

Fix Text

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 access to a list of URLs Policy State: Enabled Policy Value 1: javascript://*

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If URLBlacklist is not displayed under the Policy Name column or it is not set to javascript://* under the Policy Value column, then this is a finding. Windows method: 1. Start regedit 2. Navigate to HKLM\Software\Policies\Google\Chrome\URLBlacklist 3. If the URLBlacklist key does not exist, or the does not contain entries 1 set to javascript://*, then this is a finding.

AutoFill must be disabled.

Finding ID
DTBC-0022
Rule ID
SV-57597r2_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0022 - AutoComplete for forms
CCI
CCI-000381
Target Key
(None)
Documentable
No
Discussion

This AutoComplete feature suggests possible matches when users are filling in forms. It is possible that this feature will cache sensitive data and store it in the user's profile, where it might not be protected as rigorously as required by organizational policy. If you enable this setting or do not set a value, AutoFill will remain under the control of the user. This will allow them to configure AutoFill profiles and to switch AutoFill on or off at their own discretion.

Fix Text

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: Enable AutoFill Policy State: Disabled Policy Value: N/A

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If AutoFillEnabled is not displayed under the Policy Name column or it is not set to false 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 AutoFillEnabled value name does not exist or its value data is not set to 0, then this is a finding.

Cloud print sharing must be disabled.

Finding ID
DTBC-0023
Rule ID
SV-57599r2_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0023 - Cloud print sharing
CCI
CCI-002333
Target Key
(None)
Documentable
No
Discussion

Policy enables Google Chrome to act as a proxy between Google Cloud Print and legacy printers connected to the machine. If this setting is enabled or not configured, users can enable the cloud print proxy by authentication with their Google account. If this setting is disabled, users cannot enable the proxy, and the machine will not be allowed to share it’s printers with Google Cloud Print. If this policy is not set, this will be enabled but the user will be able to change it.

Fix Text

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: Enable Google Cloud Print proxy Policy State: Disabled Policy Value: N/A

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If CloudPrintProxyEnabled is not displayed under the Policy Name column or it is not set to false 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 CloudPrintProxyEnabled value name does not exist or its value data is not set to 0, then this is a finding.

Network prediction must be disabled.

Finding ID
DTBC-0025
Rule ID
SV-57603r3_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0025 - Network prediction
CCI
CCI-000366
Target Key
(None)
Documentable
No
Discussion

Disables network prediction in Google Chrome and prevents users from changing this setting. If you enable or disable this setting, users cannot change or override this setting in Google Chrome. If this policy is left not set, this will be enabled but the user will be able to change it.

Fix Text

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: Enable network prediction Policy State: Enabled Policy Value: 2

Check Content

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

Metrics reporting to Google must be disabled.

Finding ID
DTBC-0026
Rule ID
SV-57605r2_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0026 - Metrics reporting
CCI
CCI-000381
Target Key
(None)
Documentable
No
Discussion

Enables anonymous reporting of usage and crash-related data about Google Chrome to Google and prevents users from changing this setting. If you enable this setting, anonymous reporting of usage and crash-related data is sent to Google. A crash report could contain sensitive information from the computer's memory. If you disable this setting, anonymous reporting of usage and crash-related data is never sent to Google. If you enable or disable this setting, users cannot change or override this setting in Google Chrome. If this policy is left not set the setting will be what the user chose upon installation / first run.

Fix Text

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: Enable reporting of usage and crash-related data Policy State: Disabled Policy Value: N/A

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If MetricsReportingEnabled is not displayed under the Policy Name column or it is not set to false 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 MetricsReportingEnabled value name does not exist or its value data is not set to 0, then this is a finding.

Search suggestions must be disabled.

Finding ID
DTBC-0027
Rule ID
SV-57607r2_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0027 - Search suggestions
CCI
CCI-000381
Target Key
(None)
Documentable
No
Discussion

Search suggestion should be disabled as it could lead to searches being conducted that were never intended to be made. Enables search suggestions in Google Chrome's omnibox and prevents users from changing this setting. If you enable this setting, search suggestions are used. If you disable this setting, search suggestions are never used. If you enable or disable this setting, users cannot change or override this setting in Google Chrome. If this policy is left not set, this will be enabled but the user will be able to change it.

Fix Text

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: Enable search suggestions Policy State: Disabled Policy Value: N/A

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If SearchSuggestEnabled is not displayed under the Policy Name column or it is not set to false 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 SearchSuggestEnabled value name does not exist or its value data is not set to 0, then this is a finding.

Importing of saved passwords must be disabled.

Finding ID
DTBC-0029
Rule ID
SV-57609r4_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0029 - Import of saved passwords
CCI
CCI-000381
Target Key
(None)
Documentable
No
Discussion

Importing of saved passwords should be disabled as it could lead to unencrypted account passwords stored on the system from another browser to be viewed. This policy forces the saved passwords to be imported from the previous default browser if enabled. If enabled, this policy also affects the import dialog. If disabled, the saved passwords are not imported. If it is not set, the user may be asked whether to import, or importing may happen automatically.

Fix Text

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: Import saved passwords from default browser on first run Policy State: Disabled Policy Value: N/A

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If ImportSavedPasswords is not displayed under the Policy Name column or it is not set to false 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 ImportSavedPasswords value name does not exist or its value data is not set to 0, then this is a finding.

Incognito mode must be disabled.

Finding ID
DTBC-0030
Rule ID
SV-57611r2_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0030 - Incognito Mode
CCI
CCI-000166
Target Key
(None)
Documentable
No
Discussion

Incognito mode allows the user to browse the Internet without recording their browsing history/activity. From a forensics perspective, this is unacceptable. Best practice requires that browser history is retained. The "IncognitoModeAvailability" setting controls whether the user may utilize Incognito mode in Google Chrome. If 'Enabled' is selected or the policy is left unset, pages may be opened in Incognito mode. If 'Disabled' is selected, pages may not be opened in Incognito mode. If 'Forced' is selected, pages may be opened ONLY in Incognito mode. 0 = Incognito mode available. 1 = Incognito mode disabled. 2 = Incognito mode forced.

Fix Text

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: Incognito mode availability Policy State: Enabled Policy Value: Incognito mode disabled

Check Content

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

Plugins must be disabled by default.

Finding ID
DTBC-0034
Rule ID
SV-57615r2_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0034 - Plugin blacklist
CCI
CCI-000381
Target Key
(None)
Documentable
No
Discussion

Specifies a list of plugins that are disabled in Google Chrome and prevents users from changing this setting. The wildcard characters * and ? can be used to match sequences of arbitrary characters. * matches an arbitrary number of characters while ? specifies an optional single character, i.e. matches zero or one characters. The escape character is \, so to match actual *, ?, or \ characters, you can put a \ in front of them. If you enable this setting, the specified list of plugins is never used in Google Chrome. The plugins are marked as disabled in about:plugins and users cannot enable them. Note that this policy can be overridden by ‘EnabledPlugins’ and ‘DisabledPluginsExceptions’. If this policy is left not set the user can use any plugin installed on the system except for hard-coded incompatible, outdated or dangerous plugins.

Fix Text

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: Specify a list of disabled plugins Policy State: Enabled Policy Value: *

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If DisabledPlugins is not displayed under the Policy Name column or it is not set to * under the Policy Value column, then this is a finding. Windows method: 1. Start regedit 2. Navigate to HKLM\Software\Policies\Google\Chrome\DisabledPlugins 3. If the DisabledPlugins key does not exist, or the 1 value name does not exist under that key and the value data is not set to * then this is a finding.

Plugins approved for use must be enabled.

Finding ID
DTBC-0035
Rule ID
SV-57617r3_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0035 - Approved plugins
CCI
CCI-000381
Target Key
(None)
Documentable
No
Discussion

Policy specifies a list of plugins that are enabled in Google Chrome and prevents users from changing this setting. The wildcard characters '*' and '?' can be used to match sequences of arbitrary characters. '*' matches an arbitrary number of characters while '?' specifies an optional single character, i.e. matches zero or one characters. The escape character is '\', so to match actual '*', '?', or '\' characters, you can put a '\' in front of them. The specified list of plugins is always used in Google Chrome if they are installed. The plugins are marked as enabled in 'about:plugins' and users cannot disable them. Note that this policy overrides both ‘DisabledPlugins ‘and ‘DisabledPluginsExceptions’. If this policy is left not set the user can disable any plugin installed on the system.

Fix Text

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: Specify a list of enabled plugins Policy State: Enabled Policy Value 1: Shockwave Flash Policy Value 2: Chrome PDF Viewer Policy Value 3: Silverlight Policy Value 4: Java*

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If EnabledPlugins is not displayed under the Policy Name column or does not contain a list of administrator approved Plugins under the Policy Value column, then this is a finding. Windows method: 1. Start regedit 2. Navigate to HKLM\Software\Policies\Google\Chrome\EnabledPlugins 3. If the EnabledPlugins key does not exist and does not contain a set of administrator approved Plugins then this is a finding. Suggested: the set or subset of Shockwave Flash, Chrome PDF Viewer, Silverlight, Java*

Automated installation of missing plugins must be disabled.

Finding ID
DTBC-0036
Rule ID
SV-57621r2_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0036 - Automatic plugin search and installation
CCI
CCI-000381
Target Key
(None)
Documentable
No
Discussion

The automatic search and installation of missing or not installed plugins should be disabled as this can cause significant risk if a unapproved or vulnerable plugin were to be installed without proper permissions or authorization. If you set this setting to enabled the automatic search and installation of missing plugins will be disabled in Google Chrome.

Fix Text

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: Specify whether the plugin finder should be disabled Policy State: Enabled Policy Value: N/A

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If DisablePluginFinder 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 DisablePluginFinder value name does not exist or its value data is not set to 1, then this is a finding.

Online revocation checks must be done.

Finding ID
DTBC-0037
Rule ID
SV-57623r2_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0037 - Online revocation checks
CCI
CCI-000185
Target Key
(None)
Documentable
No
Discussion

By setting this policy to true, the previous behavior is restored and online OCSP/CRL checks will be performed. If the policy is not set, or is set to false, then Chrome will not perform online revocation checks. Certificates are revoked when they have been compromised or are no longer valid, and this option protects users from submitting confidential data to a site that may be fraudulent or not secure.

Fix Text

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: Whether online OCSP/CRL checks are performed Policy State: Enabled Policy Value: N/A

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If EnableOnlineRevocationChecks 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 EnableOnlineRevocationChecks value name does not exist or its value data is not set to 1, then this is a finding.

Safe Browsing must be enabled,

Finding ID
DTBC-0038
Rule ID
SV-57625r2_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0038 - Safe browsing
CCI
CCI-001166
Target Key
(None)
Documentable
No
Discussion

Enables Google Chrome's Safe Browsing feature and prevents users from changing this setting. If you enable this setting, Safe Browsing is always active. If you disable this setting, Safe Browsing is never active. If you enable or disable this setting, users cannot change or override this setting in Google Chrome. If this policy is left not set, this will be enabled but the user will be able to change it. Safe browsing uses a signature database to test sites when they are be loaded to ensure they don't contain any known malware.

Fix Text

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: Enable Safe Browsing Policy State: Enabled Policy Value: N/A

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If SafeBrowsingEnabled 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 SafeBrowsingEnabled value name does not exist or its value data is not set to 1, then this is a finding.

Browser history must be saved.

Finding ID
DTBC-0039
Rule ID
SV-57627r2_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0039 - History
CCI
CCI-001199
Target Key
(None)
Documentable
No
Discussion

This policy disables saving browser history in Google Chrome and prevents users from changing this setting. If this setting is enabled, browsing history is not saved. If this setting is disabled or not set, browsing history is saved.

Fix Text

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: Disable saving browser history Policy State: Disabled Policy Value: N/A

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If the policy 'SavingBrowserHistoryDisabled' is not shown or is not set to false, then this is a finding. Windows method: 1. Start regedit 2. Navigate to HKLM\Software\Policies\Google\Chrome\ 3. If the SavingBrowserHistoryDisabled value name does not exist or its value data is not set to 0, then this is a finding.

Default behavior must block webpages from automatically running plugins.

Finding ID
DTBC-0040
Rule ID
SV-57629r4_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0040 - Plugin execution
CCI
CCI-001687
Target Key
(None)
Documentable
No
Discussion

This policy allows you to set whether websites are allowed to automatically run plugins. Automatically running plugins can be either allowed for all websites or denied for all websites. If this policy is left not set, 'AllowPlugins' will be used and the user will be able to change it. 1 = Allow all sites to automatically run plugins 2 = Block all plugins 3 = Click to play.

Fix Text

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 plugins setting Policy State: Enabled Policy Value: Click to play

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If the policy "DefaultPluginsSetting" is not shown or is not set to "3", this is a finding. Windows method: 1. Start regedit 2. Navigate to HKLM\Software\Policies\Google\Chrome\DefaultPluginsSetting 3. If this key "DefaultPluginsSetting" does not exist or is not set to "3", this is a finding.

Session only based cookies must be disabled.

Finding ID
DTBC-0045
Rule ID
SV-57633r4_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0045 - Per session cookies
CCI
CCI-000166
Target Key
(None)
Documentable
No
Discussion

Policy allows you to set a list of URL patterns that specify sites which are allowed to set session only cookies. If this policy is left not set the global default value will be used for all sites either from the 'DefaultCookiesSetting' policy if it is set, or the user's personal configuration otherwise. If the 'RestoreOnStartup' policy is set to restore URLs from previous sessions this policy will not be respected and cookies will be stored permanently for those sites.

Fix Text

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: Allow session only cookies on these sites Policy State: Disabled Policy Value: N/A

Check Content

Universal method: 1. In the omnibox(address bar) type chrome://policy 2. If the policy 'CookiesSessionOnlyForUrls' exists, and has any defined values, this is a finding. Windows method: 1. Start regedit 2. Navigate to HKLM\Software\Policies\Google\Google Chrome\Content Settings\CookiesSessionOnlyForUrls 3. If this key exists and has any defined values, this is a finding.

Browser must support auto-updates.

Finding ID
DTBC-0050
Rule ID
SV-57639r3_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0050 - Auto updates
CCI
CCI-002614
Target Key
(None)
Documentable
No
Discussion

One of the most effective defenses against exploitation of browser vulnerabilities is to ensure the version of the browser is current. Frequent updates provide corrections to discovered vulnerabilities and the timely update reduces the window for zero day attacks. Automatic installation of updates and patches is the most effective method for keeping the browser software current. The browser must have the capability to install software updates and patches automatically.

Fix Text

1. Start regedit 2. Navigate to Key Path: HKLM\Software\Policies\Google\Update Value Name: AutoUpdateCheckPeriodMinutes Value Type: Boolean (REG_DWORD) Value Data: 10080 or less, but not 0.

Check Content

Windows method: 1. Start regedit 2. Navigate to HKLM\Software\Policies\Google\Update\ 3. If the AutoUpdateCheckPeriodMinutes value name does not exist or its value is set to 0 or greater than 10080, this is a finding.

URLs must be whitelisted for plugin use

Finding ID
DTBC-0051
Rule ID
SV-67011r2_rule
Severity
Cat II
CCE
(None)
Group Title
DTBC0051 - Plugins allowed for urls
CCI
CCI-002756
Target Key
(None)
Documentable
No
Discussion

This policy allows you to set a list of URL patterns that specify sites which are allowed to run plugins. If this policy is not set, plugins could be run from any website, including potentially malicious ones.

Fix Text

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: Allow plugins on these sites Policy State: Enabled Policy Value 1: *.mil Policy Value 2: *.gov

Check Content

Universal method: 1. In the omnibox (address bar) type chrome://policy 2. If PluginsAllowedForUrls is not displayed under the Policy Name column or it is not set to a list of administrator approved URLs 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 PluginsAllowedForUrls key does not exist and it does not contain a list of administrator approved URLs then this is a finding. Suggested: the set or subset of *.mil and *.gov