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In accordance with SP Rev. If no USGCB checklist is available, the agencies are encouraged to use the following checklists, starting with the top of the list and moving to the next checklist only if it is not available. USGCB settings were developed and tested on enterprise-connected laptops and desktop computers.

Embedded computers, process control systems, specialized scientific or experimental systems, and similar systems are outside the scope of USGCB. Of course, such systems still require appropriate protection and application of sound risk management principles. For such systems, agencies should examine the USGCB security configuration for applicability where feasible and appropriate. This FAQ will be updated should we receive any information about future data calls. There is no formal compliance process; vendors of information technology products must self-assert USGCB compliance.

They are expected to ensure that their products function correctly with computers configured with the USGCB settings. Applications must work with users who do not have administrative privileges, the only acceptable exception being information technology management tools. The USGCB includes both machine settings and user settings; the latter are stored in each user's profile.

For automated scanners it is exceedingly difficult to determine whether user settings such as the screen saver time out and AutoComplete settings for Internet Explorer are configured correctly. If no user is logged on then HKCU will not exist; the scanner could attempt to examine all of the user profiles stored on the computer, however these may include some that do not need the USGCB settings.

Vendors may attempt to address this situation in various ways, however in many cases the administrator will have to manually verify the user-specific settings. In other cases where the the SCAP content checks to see whether an account does or does not have a specific user right a well-known security identifier SID is used. A SID is a numerical identifier that maps to the user-friendly name of the account.

Subsequent patches released by Microsoft are included the next time the VHD is updated, which may be several months. As a result, these patches are not present on the VHD and will therefore show up as missing during the scan.

This is expected behavior and does not indicate a deficiency in the product used to scan the VHD. The Security Content Automation Protocol SCAP is a suite of specifications that standardize the format and nomenclature by which security software products communicate software flaw and security configuration information.

No, the monthly patch updates for the SCAP 1. SCAP 1. Tools are referenced by their type configuration scanner, vulnerability scanner, etc , as well as by the vendor, tool name, and specific SCAP components in which the tool has achieved compliance.

Microsoft Hyper-V is a bare metal hypervisor that allows users to run a virtual instance of an operating system aka Virtual Hard Disk. VHDs are very useful for both laboratory and deployment testing. While software can be installed on a VHD in the same way software is installed on normal operating systems, VHDs can be discarded and re-implemented very quickly for the purposes of ensuring a pristine testing environment or if something malfunctioned with the previous VHD.

Additionally, multiple VHDs can be run over a single physical platform to achieve cost savings. According to Microsoft licensing, VHD licenses expire after days. The Windows virtual hard disks are created without a license key supplied and has a 30 day evaluation period. Once this period of time lapses, "not genuine" pop-ups will appear. You can rearm Windows 7 three times. To enable more manageable download of the multi-gigabyte virtual images, NIST elected to provide WinZip segmented files.

To the best of our knowledge, these files can only be re-assembled with WinZip. Once affiliation is confirmed, a non-segmented virtual machine image will be shipped on a DVD to your attention. After careful and comprehensive testing, an organization may decide to use the GPO,. VHDs are provided for laboratory testing purposes only and are not to be used as a deployment image.

The GPO will still work. Here are the steps to correct:. Next, import the reference Windows x86 and x64 VHDs. No, there are a number of settings that cannot be automated at this time.

While settings for other browsers were not tested, Federal organizations are free to use other Web browser software instead of or in addition to Internet Explorer IE. However, Federal organizations are free to use other desktop firewall software instead of the Microsoft Windows Firewall. The USGCB includes security settings that do not appear in the default user interface for the group policy editor.

Microsoft has published a utility that is bundled with their Security Compliance Manager SCM which you can use to update the user interface of the group policy management tools. There you will find more current utilities and security guidance for their current platform versions. There are a number of settings that will impact system functionality and agencies should test thoroughly before they are deployed in an operational environment.

Organizations have taken a variety of approaches. Other enterprise management technologies can be used instead. What works best will vary from one organization to the next. Additionally, by keeping the original VHDs you downloaded from NIST pristine and creating copies of it for actual testing you can quickly reconstitute your test environment for each round of testing.

However, when you need to deploy the USGCB settings into production the VHDs won't be very useful, as there is no documented method for creating domain-based group policies from the local configuration on these stand-alone computers. Then you can copy these backed up files into your production environment and import them into your production Active Directory domain. Some SCAP-validated tools may also be able to enforce the mandated settings, check with the tool vendors to determine the capabilities of their tools.

More specifically, create a WMI filter that selects applicable operating systems, and link that filter to the GPO applicable for those operating systems. If computers with Windows or previous Windows operating systems are present within the enterprise, these computers must be granted exception from the group policy using the Deny Read and Deny Apply Group Policy settings.

The following resources provide additional detail:. If the nomenclature is represented as w. So, 1. Additionally, when the USGCB content is updated, the general guidance from a version update perspective is that if there are settings changes, the major version should be incremented. If the content is being updated due to a bug fix, then the minor version should be incremented. Finally, when the major version is incremented, the minor version should be reset to 0 zero , even if both settings changes and bug fixes are completed during the same update cycle.

NIST is not able to provide an official position regarding what must and must not be implemented. We would appreciate the continued dialog to discover any technical interoperability issues; however, your choice to implement or not implement settings based on functional impact, risk-based decision, etc. This is due to the way that Advanced Audit Policies work when applied locally. Wake-on-LAN WOL is a feature supported by many hardware and software vendors, it uses a special network message colloquially known as magic packets to "wake up" hibernating computers.

Although the technology has been around for many years, there are likely still some PCs deployed that do not support it. Agencies need to plan ahead and configure each PC to take advantage of this technology.

From an enterprise perspective, the magic packet is broadcast to a subnet. In most networks it will not be forwarded across subnets unless internal routers and switches are configured to allow this type of broadcast data. Haphazardly forwarding broadcast traffic exposes the network to the risk of accidental or deliberate saturation by broadcasts, so the intermediate network devices should be configured to only forward this specific type of traffic. Another way to reduce the risk of broadcast floods is to use Subnet Directed Broadcasts SDB so that the WOL packet is forwarded to the target subnet rather than the entire internal.

Magic packets are specially formatted broadcast frames that contain the target computer's MAC address. WOL can be used to address the first two scenarios. Many enterprise management tools can send a magic packet to wake up managed PCs, including most of the SCAP validated tools. For mobile users, agencies could provide remote users with a utility to wake up their office PC after they have connected to the VPN. The EPA collected a list of tools there are many others.

The configuration settings were designed for a system acting as a desktop and were field-tested on typical desktop computers. This checklist was posted to checklists.

The desktop environment tested by the DoD and NIST includes the following packages and package groups " " indicates a package group :.

A desktop system operates a graphical environment and provides applications for everyday business use, such as a web browser, mail client, spreadsheet and word processor. A server does not run a graphical environment or any of those applications, but can host network services such as a web server or directory server. We are an international network of trusted and respected members who are best in class; referring opportunities, sharing knowledge and ideas with one another.

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