Windows Vista Security Technical Implementation Guide

251procedures

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Severity
CurrentPublished Fri Apr 28 2017
Objective ID
Severity
Discussion
V-1070
medium
Inadequate physical protection can undermine all other security precautions utilized to protect the system. This can jeopardize the confidentiality, availability, and integrity of the system. Physical security of the AIS is the first line protection of any system.
V-1072
medium
Shared accounts do not provide individual accountability for system access and resource usage.
V-1073
high
Systems at unsupported service packs or releases will not receive security updates for new vulnerabilities and leaves them subject to exploitation. Systems must be maintained at a service pack level supported by the vendor with new security updates.
V-1074
high
Antivirus programs are a primary line of defense against the introduction of viruses and malicious code that can destroy data and even render a computer inoperable. Utilizing an antivirus program provides the ability to detect malicious code before extensive damage occurs. Updated virus scan data files help to protect a system, since new malware are identified by the software vendors on a continual basis.
V-1075
low
Preventing display of the shutdown button in the logon dialog box may encourage a hard shut down with the power button. (However, displaying the shutdown button may allow individuals to shut down a system anonymously.)
V-1076
low
Recovery of a damaged or compromised system in a timely basis is difficult without a system information backup. A system backup will usually include sensitive information such as user accounts that could be used in an attack. As a valuable system resource, the system backup should be protected and stored in a physically secure location.
V-1077
medium
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Event logs may be susceptible to tampering if proper permissions are not applied.
V-1081
high
This is a category 1 finding because the ability to set access permissions and audit critical directories and files is only available by using the NTFS file system. The capability to assign access permissions to file objects is a DOD policy requirement.
The FAT file system only provides the capability to make files read-only and hidden. The capability to change these attributes is not restricted to any users. An unauthorized individual could boot the machine from a floppy disk and gain full and unrecorded access to file data.

V-1084
low
This check verifies that Windows is not configured to wipe clean the system page file during a controlled system shutdown.
V-1085
low
This check verifies that Windows is configured to not limit access to floppy drives when a user is logged on locally per the FDCC.
V-1089
medium
Failure to display the logon banner prior to a logon attempt will negate legal proceedings resulting from unauthorized access to system resources.
V-1090
low
The default Windows configuration caches the last logon credentials for users who log on interactively to a system. This feature is provided for system availability reasons, such as the user's machine being disconnected from the network or domain controllers being unavailable. Even though the credential cache is well-protected, if a system is attacked, an unauthorized individual may isolate the password to a domain user account using a password-cracking program and gain access to the domain.
V-1093
high
This is a Category 1 finding because it allows anonymous logon users (null session connections) to list all account names and enumerate all shared resources, thus providing a map of potential points to attack the system.
V-1097
medium
The account lockout feature, when enabled, prevents brute-force password attacks on the system. The higher this value is, the less effective the account lockout feature will be in protecting the local system. The number of bad logon attempts should be reasonably small to minimize the possibility of a successful password attack, while allowing for honest errors made during a normal user logon.
V-1098
medium
This parameter specifies the amount of time that must pass between two successive login attempts to ensure that a lockout will occur. The smaller this value is, the less effective the account lockout feature will be in protecting the local system.
V-1099
medium
This parameter specifies the amount of time that must pass before a locked-out account is automatically unlocked by the system.
V-1102
high
This is a Category 1 finding because users and user groups that are assigned this right can bypass all security protective mechanisms that apply to all users, including administrators. Accounts with this right should have passwords with the maximum length and be kept in a locked container accessible only by the IAO and his designated backup.

Some applications require this right to function. Any exception needs to be documented with the IAO.
V-1103
medium
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities not required by the normal user.
V-1104
medium
The longer a password is in use, the greater the opportunity for someone to gain unauthorized knowledge of the passwords. Further, scheduled changing of passwords hinders the ability of unauthorized system users to crack passwords and gain access to a system.
V-1105
medium
Permitting passwords to be changed in immediate succession within the same day, allows users to cycle passwords through their history database. This enables users to effectively negate the purpose of mandating periodic password changes.
V-1107
medium
A system is more vulnerable to unauthorized access when system users recycle the same password several times without being required to change a password to a unique password on a regularly scheduled basis. This enables users to effectively negate the purpose of mandating periodic password changes. The default value is 24 for Windows domain systems. DoD has decided this is the appropriate value for all Windows systems.
V-1112
low
Outdated or unused accounts provide penetration points that may go undetected. Inactive accounts must be deleted if no longer necessary or, if still required, disable until needed.
V-1113
medium
A system faces an increased vulnerability threat if the built-in guest account is not disabled. This account is a known account that exists on all Windows systems and cannot be deleted. This account is initialized during the installation of the operating system with no password assigned. This account is a member of the Everyone user group and has all the rights and permissions associated with that group, which could subsequently provide access to system resources to anonymous users.
V-1114
medium
A system faces an increased vulnerability threat if the built-in guest account is not renamed or disabled. The built-in guest account is a known user account on all Windows systems, and as initially installed, does not require a password. This can allow access to system resources by unauthorized users. This account is a member of the group Everyone and has all the rights and permissions associated with that group and could provide access to system resources to unauthorized users.
V-1115
medium
The built-in administrator account is a well known account. Renaming the account to an unidentified name improves the protection of this account and the system.
V-1118
medium
Inadequate log size will cause the log to fill up quickly and require frequent clearing by administrative personnel.
V-1119
medium
Allowing other operating systems to run on a secure system, can allow users to circumvent security. If more than one operating system is installed on a computer, each must be configured to be compliant with STIG guidance.
V-1120
medium
The FTP (File Transfer Protocol) service allows remote users to access shared files and directories. Allowing anonymous FTP makes user auditing difficult.

Using accounts that have administrator privileges to log on to FTP risks that the user id and password will be captured on the network, and give administrator access to an unauthorized user.
V-1121
high
This is a Category 1 finding because the FTP service allows remote users to access shared files and directories which could provide access to system resources and compromise the system, especially if the user can gain access to the root directory of the boot drive.
V-1122
medium
The system should be locked when unattended. Unattended systems are susceptible to unauthorized use. The screen saver should be set at a maximum of 15 minutes and password protected. This protects critical and sensitive data from exposure to unauthorized personnel with physical access to the computer.
V-1127
high
An account that does not have Administrator duties must not have Administrator rights. Such rights would allow the account to bypass or modify required security restrictions on that machine and make it vulnerable to attack.

System administrators must log on to systems only using accounts with the minimum level of authority necessary.

For domain joined workstations, the Domain Admins group must be replaced by a domain workstation administrator group. Restricting highly privileged accounts from the local Administrators group helps mitigate the risk of privilege escalation resulting from credential theft attacks.

Standard user accounts must not be members of the built-in Administrators group.
V-1128
low
Security configuration tools such as Group Policies and Security Templates allow system administrators to consolidate security-related system settings into a single configuration file. These settings can then be applied consistently to any number of Windows systems.
V-1130
medium
Failure to properly configure file and directory permissions (ACLs) allows the possibility of unauthorized and anonymous modification to the operating system and installed applications.
V-1135
low
Improperly configured share permissions on printers can permit the addition of unauthorized print devices on the network. Windows shares are a means by which files, folders, printers, and other resources can be published for network users to remotely access. Regular users cannot create shares on their local machines; only Administrators and Power Users have that ability.
V-1136
low
Users must not be permitted to remain logged on to the network after they have exceeded their permitted logon hours. In many cases, this indicates that a user forgot to log off before leaving for the day. However, it may also indicate that a user is attempting unauthorized access at a time when the system may be less closely monitored. Forcibly disconnecting users when logon hours expire protects critical and sensitive network data from exposure to unauthorized personnel with physical access to the computer.
V-1140
high
Using a privileged account to perform routine functions makes the computer vulnerable to attack by any virus or Trojan Horse inadvertently introduced during a session that has been granted full privileges.

The rule of least privilege should always be enforced.
V-1141
medium
Some non-Microsoft SMB servers only support unencrypted (plain text) password authentication. Sending plain text passwords across the network, when authenticating to an SMB server, reduces the overall security of the environment. Check with the Vendor of the SMB server to see if there is a way to support encrypted password authentication.
V-1145
medium
Allowing a system to automatically log on when the machine is booted could give access to any unauthorized individual who restarts the computer. Automatic logon with administrator privileges would give full access to an unauthorized individual.
V-1148
low
To minimize potential points of attack, local users, other than built-in accounts such as Administrator and Guest accounts, must not exist on a workstation in a domain. Users must log onto workstations in a domain with their domain accounts.
V-1150
medium
The use of complex passwords increases their strength against attack. The built-in Windows password complexity policy requires passwords to contain at least 3 of the 4 types of characters (numbers, upper- and lower-case letters, and special characters), as well as preventing the inclusion of user names or parts of.
V-1151
low
By default, the print spooler allows any user to add and to delete printer drivers on the local system. This capability should be restricted to authorized personnel.
V-1152
high
The registry is integral to the function, security, and stability of the Windows system. Some processes may require anonymous access to the registry. This must be limited to properly protect the system.
V-1153
high
The Kerberos v5 authentication protocol is the default for authentication of users who are logging on to domain accounts. NTLM is retained in later Windows versions for compatibility with clients and servers that are running earlier versions of Windows. It is also used to authenticate logons to stand-alone computers that are running later versions.
V-1154
medium
Disabling the Ctrl+Alt+Del security attention sequence can compromise system security. Because only Windows responds to the Ctrl+Alt+Del security sequence, you can be assured that any passwords you enter following that sequence are sent only to Windows. If you eliminate the sequence requirement, malicious programs can request and receive your Windows password. Disabling this sequence also suppresses a custom logon banner.
V-1155
medium
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities.

The "Deny access to this computer from the network" right defines the accounts that are prevented from logging on from the network.

In an Active Directory Domain, denying logons to the Enterprise Admins and Domain Admins groups on lower trust systems helps mitigate the risk of privilege escalation from credential theft attacks which could lead to the compromise of an entire domain.

Local administrator accounts on domain-joined systems must also be assigned this right to decrease the risk of lateral movement resulting from credential theft attacks.

The Guests group must be assigned this right to prevent unauthenticated access.
V-1157
medium
Determines what should happen when the smart card for a logged-on user is removed from the smart card reader.

The options are:
- No Action
- Lock Workstation
- Force Logoff
V-1158
low
The Recovery Console SET command allows environment variables to be set in the Recovery Console. This permits access to all drives and folders and the copying of files to removable media which could expose sensitive information.
V-1159
high
This is a Category 1 finding because if this option is set, the Recovery Console does not require you to provide a password and will automatically log on to the system, giving Administrator access to system files.

By default, the Recovery Console requires you to provide the password for the Administrator account before accessing the system.
V-1162
medium
If this policy is enabled, it causes the Windows Server Message Block (SMB) server to perform SMB packet signing.
V-1163
medium
Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but not all information is encrypted. If this policy is enabled, outgoing secure channel traffic should be encrypted.
V-1164
medium
Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but the channel is not integrity checked. If this policy is enabled, all outgoing secure channel traffic should be signed.
V-1165
low
As a part of Windows security, computer account passwords are changed automatically. Enabling this policy to disable automatic password changes can make the system more vulnerable to malicious access. Frequent password changes can be a significant safeguard for your system. If this policy is disabled, a new password for the computer account will be generated every week.
V-1166
medium
If this policy is enabled, it causes the Windows Server Message Block (SMB) client to perform SMB packet signing when communicating with an SMB server that is enabled or required to perform SMB packet signing.
V-1168
medium
Backup Operators are able to read and write to any file in the system, regardless of the rights assigned to it. Backup and restore rights permit users to circumvent the file access restrictions present on NTFS disk drives for the purpose of backup and restore. Members of the Backup Operators group must have separate logon accounts for performing backup duties.
V-1171
medium
Removable hard drives can be formatted and ejected by others who are not members of the Administrators Group, if they are not properly configured. Formatting and ejecting removable NTFS media should only be done by administrators.
V-1172
low
This setting configures the system to display a warning to users telling them how many days are left before their password expires. By giving the user advanced warning, the user has time to construct a sufficiently strong password.
V-1173
low
Windows system maintains a global list of shared system resources such as DOS device names, mutexes, and semaphores. Each type of object is created with a default DACL that specifies who can access the objects with what permissions. If this policy is enabled, the default DACL is stronger, allowing non-admin users to read shared objects, but not modify shared objects that they did not create.
V-1174
low
Open sessions can increase the avenues of attack on a system. This setting is used to control when a computer disconnects an inactive SMB session. If client activity resumes, the session is automatically re-established. This protects critical and sensitive network data from exposure to unauthorized personnel with physical access to the computer.
V-11806
low
The user name of the last user to log onto a system will not be displayed. This eliminates half of the Userid/Password equation that an unauthorized person would need to log on.
V-14224
medium
The built-in administrator account, as a well known account subject to attack, is disabled by default and per STIG requirements. Domain Admins on domain joined systems should provide sufficient availability for administering a system. A site with limited administrators must ensure they have a contingency for administering a non-domain system.
V-14225
medium
This check verifies that the passwords for the default and backup administrator accounts are changed at least annually or when any member of the administrative team leaves the organization.
V-14228
medium
This setting prevents the system from setting up a default system access control list for certain system objects, which could create a very large number of security events, filling the security log in Windows and making it difficult to identify actual issues.
V-14229
medium
This policy setting stops the system from generating audit events for every file backed up or restored which could fill the Security log in Windows.
V-14230
medium
This policy setting allows administrators to enable the more precise auditing capabilities present in Windows Vista and later.
V-14231
low
This check verifies Windows Vista is configured to hide the computer from the browse list.
V-14232
low
This check verifies that Windows is configured to limit IPSec exemptions.
V-14234
medium
This check verifies whether the built-in Administrator account runs in Admin Approval Mode.
V-14235
medium
This check verifies whether logged on administrator is prompted for consent when he attempts to complete a task that requires raised privileges.
V-14236
medium
This check verifies whether the logged on user is prompted for credentials when attempting to complete a task that requires raised privileges.
V-14237
medium
This check verifies whether Windows responds to application installation requests by prompting for credentials.
V-14239
medium
This check verifies whether Windows only allows applications installed in a secure location, such as the Program Files or the Windows\System32 folders, on the file system to run with elevated privileges.
V-14240
medium
This check verifies that UAC has not been disabled.
V-14241
medium
This check verifies that the elevation prompt is only used in secure desktop mode.
V-14242
medium
This check verifies that non UAC compliant applications will run in virtualized file and registry entries allowing them to run.
V-14243
medium
This check verifies that the system is configured to always require users to type in a user name and password to elevate a running application.
V-14247
medium
This check verifies that the system is configured to prevent Users from saving passwords in the Remote Desktop Client.
V-14248
medium
Allowing a Terminal Services session to a workstation enables another avenue of access that could be exploited. The system must be configured to prevent users from connecting to a computer using Terminal Services.
V-14249
medium
This check verifies that the system is configured to prevent users from sharing the local drives on their client computers to Terminal Servers that they access.
V-14253
medium
This check verifies that the system is configured to restrict unauthenticated RPC clients from connecting to the RPC server.
V-14254
medium
This check verifies that the system is configured to force client computers to provide authentication before an RPC communication is established.
V-14255
medium
This check verifies that the system is configured to make the options to publish to the web unavailable from File and Folder Tasks in Windows folders.
V-14256
medium
This check verifies that the system is configured to prevent Windows from downloading a list of providers for the Web publishing and online ordering wizards.
V-14257
medium
This check verifies that the system is configured to prevent Windows Messenger from collecting anonymous information about how the Windows Messenger software and service is used.
V-14258
medium
This check verifies that the system is configured to prevent Search Companion from automatically downloading content updates during local and Internet searches.
V-14259
medium
This check verifies that the system is configured to prevent the client computer’s ability to print over HTTP, which allows the computer to print to printers on the intranet as well as the Internet.
V-14260
medium
This check verifies that the system is configured to prevent the computer from downloading print driver packages over HTTP.
V-14261
medium
This check verifies that the system is configured to prevent Windows from searching Windows Update for device drivers when no local drivers for a device are present.
V-14262
medium
Any nodes’ interface with IPv6 enabled by default presents a potential risk of traffic being transmitted or received without proper risk mitigation strategy and is therefore, a serious security concern.
V-14268
medium
This check verifies that file attachments are marked with their zone of origin allowing Windows to determine risk.
V-14269
medium
This check verifies that users cannot manually remove zone information from saved file attachments.
V-14270
medium
This check verifies that antivirus programs are notified when a user opens a file attachment.
V-14271
medium
Setting application accounts to expire may cause applications to stop functioning. The site will have a policy that application account passwords manually generated and entered by a system administrator are changed at least annually or when a system administrator with knowledge of the password leaves the organization. Application/service account passwords will be at least 15 characters and follow complexity requirements for all passwords.
V-15505
medium
V-15666
medium
This check verifies Microsoft Peer-to-Peer Networking Service is turned off.
V-15667
medium
This check verifies the Network Bridge can not be installed and configured.
V-15672
low
This check verifies that Events.asp hyperlinks in Event Viewer are available.
V-15673
low
This check verifies that the Internet Connection Wizard cannot download a list of Internet Service Providers (ISPs) from Microsoft.
V-15674
medium
This check verifies that unhandled file associations will not use the Microsoft Web service to find an application.
V-15675
low
This check verifies that the Windows Registration Wizard is blocked from online registration.
V-15676
low
This check verifies that the "Order Prints Online" task is not available in Windows Explorer.
V-15677
medium
This check verifies that the codecs will not be automatically downloaded for Windows Movie Maker.
V-15678
medium
This check verifies that the links to web sites in Windows Movie Maker will not be available.
V-15679
medium
This check verifies that movies can not be sent to a video hosting provider on the web.
V-15680
low
The classic logon screen requires users to enter a logon name and password to access a system. The simple logon screen or Welcome screen displays usernames for selection, providing part of the necessary logon information.
V-15682
medium
Attachments from RSS feeds may not be secure. This setting will prevent attachments from being downloaded from RSS feeds.
V-15683
medium
This check verifies that the shell protocol is run in protected mode. (This allows applications to only open limited folders.)
V-15684
medium
This check verifies that users are notified if a web-based program attempts to install software.
V-15685
medium
This check verifies that users are prevented from changing installation options.
V-15686
low
This check verifies that users are prevented applying vendor signed updates.
V-15687
low
This check verifies that users are not presented with Privacy and Installation options on first use of Windows Media Player.
V-15696
medium
This check verifies that the Mapper I/O network protocol driver is disabled.
V-15697
medium
This check verifies that the Responder network protocol driver is disabled.
V-15698
medium
This check verifies that the configuration of wireless devices using Windows Connect Now is disabled.
V-15699
medium
This check verifies that access to the Windows Connect Now wizards is disabled.
V-15700
medium
This check verifies that remote access to the Plug and Play interface is disabled.
V-15701
low
This check verifies that a system restore point will be created when a new device driver is installed.
V-15702
low
This check verifies that an Error Report will not be sent when a generic device driver is installed.
V-15703
low
This check verifies that users will not be prompted to search Windows Updated for device drivers.
V-15704
low
This check verifies that errors in handwriting recognition on Tablet PCs are not reported to Microsoft.
V-15705
medium
This check verifies that the user is prompted for a password on resume from sleep (on battery).
V-15706
medium
This check verifies that the user is prompted for a password on resume from sleep (Plugged In).
V-15707
low
This check verifies that Remote Assistance log files will be generated.
V-15708
low
This check verifies that Digital Locker, a dedicated download manager can not run.
V-15709
low
This check verifies that game information is not downloaded from Windows Metadata Services.
V-15710
medium
This check verifies that untrusted content is not rendered for online assistance.
V-15711
medium
This check verifies that encrypted files are not indexed.
V-15712
low
Indexing of encrypted items may expose sensitive data. This setting prevents mail items in a Microsoft Exchange folder from being indexed when Outlook is running in uncached mode.
V-15713
medium
This check verifies that SpyNet membership is disabled.
V-15714
medium
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. This setting ensures that Error Reporting events will be saved in the system event log.
V-15715
medium
Enabling Windows Error Reporting generates information useful to system administrators and forensics analysts for diagnosing system problems and investigating intrusions. If Windows Error Reporting is turned off, valuable system diagnostic and vulnerability information may be lost.
V-15717
medium
Sending additional error reporting data provides valuable system diagnostic and vulnerability information that would otherwise not be generated nor collected. This setting controls whether additional data in support of error reports can be sent to a local or DOD-wide reporting site.
V-15718
low
This check verifies that heap termination on corruption is disabled. This may prevent Windows Explorer from terminating immediately from certain legacy plug-in applications.
V-15719
low
Notifying a user whether cached credentials were used may make them aware of connection issues.
V-15720
low
This check verifies that Windows Mail will not check newsgroups for Communities support.
V-15721
medium
This check verifies that Windows Mail will be disabled.
V-15722
medium
This check verifies that Windows Media Digital Rights Management will be prevented from accessing the internet.
V-15723
medium
This check verifies that Windows Meeting Space is disabled.
V-15724
medium
Uncontrolled installation of applications can introduce various issues, including system instability, and allow access to sensitive information. Installation of applications must be controlled by the enterprise. This setting prevents unsigned gadgets from being installed.
V-15725
medium
Uncontrolled installation of applications can introduce various issues, including system instability, and allow access to sensitive information. Installation of applications must be controlled by the enterprise. This setting prevents access to gadgets through the More Gadgets link.
V-15726
medium
Uncontrolled installation of applications can introduce various issues, including system instability, and allow access to sensitive information. Installation of applications must be controlled by the enterprise. This setting prevents user-installed gadgets from running.
V-15727
medium
This check verifies that users are prevented from sharing files.
V-15823
medium
This check verifies that software certificate installation files have been removed from a system.
V-16020
medium
This check verifies that the Windows Customer Experience Improvement Program is disabled so information is not passed to the vendor.
V-16021
medium
This check verifies that the Windows Help Experience Improvement Program is disabled to prevent information from being passed to the vendor.
V-16047
medium
This check verifies that Windows Vista is configured to disable the built-in administrator account which provides no accountability.
V-16048
medium
This check verifies that the users cannot provide ratings feedback to Microsoft for Help content
V-17373
low
This check verifies that Windows is configured to not limit access to CD drives when a user is logged on locally per the FDCC.
V-17374
low
This check verifies that elevation of application in UAC is not restricted to signed and validated applications per the FDCC.
V-17900
high
This registry key will prevent the autorun.inf from executing commands.
V-18010
high
This is a Category 1 finding as it provides access to the kernel with complete access to sensitive and critical operating system components.
V-2371
medium
When configuring either the startup mode or access control list for a service, you must configure the other as well. When a service is explicitly disabled, its ACL should also be secured by changing the default ACL from Everyone Full Control to grant Administrators and SYSTEM Full Control and Interactive Read access.
V-2372
medium
Storing passwords using reversible encryption is essentially the same as storing clear-text versions of the passwords. For this reason, this policy should never be enabled.
V-2374
high
Autoplay begins reading from a drive as soon as you insert media in the drive. As a result, the setup file of programs and the music on audio media starts immediately. By default, Autoplay is disabled on removable drives, such as the floppy disk drive (but not the CD-ROM drive), and on network drives. If you enable this policy, you can also disable Autoplay on all drives.
V-26070
high
Permissions on the Winlogon registry key must only allow privileged accounts to change registry values. If standard users have this capability there is a potential for programs to run with elevated privileges when a privileged user logs on to the system.
V-26359
low
Failure to display the logon banner prior to a logon attempt will negate legal proceedings resulting from unauthorized access to system resources.
V-26483
medium
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities.

The "Deny log on as a batch job" right defines accounts that are prevented from logging on to the system as a batch job, such as Task Scheduler.

In an Active Directory Domain, denying logons to the Enterprise Admins and Domain Admins groups on lower trust systems helps mitigate the risk of privilege escalation from credential theft attacks which could lead to the compromise of an entire domain.

The Guests group must be assigned to prevent unauthenticated access.
V-26484
medium
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities.

The "Deny log on as a service" right defines accounts that are denied log on as a service.

In an Active Directory Domain, denying logons to the Enterprise Admins and Domain Admins groups on lower trust systems helps mitigate the risk of privilege escalation from credential theft attacks which could lead to the compromise of an entire domain.

Incorrect configurations could prevent services from starting and result in a DoS.
V-26485
medium
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities.

The "Deny log on locally" right defines accounts that are prevented from logging on interactively.

In an Active Directory Domain, denying logons to the Enterprise Admins and Domain Admins groups on lower trust systems helps mitigate the risk of privilege escalation from credential theft attacks which could lead to the compromise of an entire domain.

The Guests group must be assigned this right to prevent unauthenticated access.
V-26486
medium
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities.

The "Deny log on through Terminal Services" right defines the accounts that are prevented from logging on using Terminal Services.

If Terminal Services is not used by the organization, the Everyone group must be assigned this right to prevent all access.

In an Active Directory Domain, denying logons to the Enterprise Admins and Domain Admins groups on lower trust systems helps mitigate the risk of privilege escalation from credential theft attacks which could lead to the compromise of an entire domain.

Local administrator accounts on domain-joined systems must also be assigned this right to decrease the risk of lateral movement resulting from credential theft attacks.

The Guests group must be assigned this right to prevent unauthenticated access.
V-2908
high
This is a category 1 finding because when unencrypted access to system services is permitted, an intruder can intercept user identification and passwords that are being transmitted in clear text. This could give an intruder unlimited access to the network.
V-32272
medium
To ensure secure DoD websites and DoD-signed code are properly validated, the system must trust the DoD Root Certificate Authorities (CAs). The DoD root certificates will ensure that the trust chain is established for server certificates issued from the DoD CAs.
V-32273
medium
To ensure secure websites protected with External Certificate Authority (ECA) server certificates are properly validated, the system must trust the ECA Root CAs. The ECA root certificates will ensure the trust chain is established for server certificates issued from the External CAs. This requirement only applies to unclassified systems.
V-32274
medium
To ensure users do not experience denial of service when performing certificate-based authentication to DoD websites due to the system chaining to a root other than DoD Root CAs, the DoD Interoperability Root CA cross-certificates must be installed in the Untrusted Certificate Store. This requirement only applies to unclassified systems.
V-32282
high
Permissions on the Active Setup\Installed Components registry key must only allow privileged accounts to add or change registry values. If standard user accounts have this capability there is a potential for programs to run with elevated privileges when a privileged user logs on to the system.
V-3245
medium
By default, the Everyone group is given full control to new file shares. When a share is created, permissions should be reconfigured to give the minimum access to those accounts that require it.
V-3337
high
This is a Category 1 finding because this setting controls the ability of users or process that have authenticated as anonymous users to perform SID/Name translation. This setting should be disabled, as only authorized users should be able to perform such translations.
V-3338
high
This is a Category 1 finding because the potential for gaining unauthorized system access. Pipes are internal system communications processes. They are identified internally by ID numbers that vary between systems. To make access to these processes easier, these pipes are given names that do not vary between systems. This setting controls which of these pipes anonymous users may access.
V-3339
high
This is a Category 1 finding because it could give unauthorized individuals access to the Registry.
It controls which registry paths are accessible from a remote computer.
V-3340
high
This is a Category 1 finding because the potential for gaining unauthorized system access. Any shares listed can be accessed by any network user. This could lead to the exposure or corruption of sensitive data. Enabling this setting is very dangerous.
V-3343
high
This setting controls whether or not solicited remote assistance is allowed from this computer. Solicited assistance is help that is specifically requested by the user. This is a Category 1 finding because it may allow unauthorized parties access to the resources on the computer.
V-3344
high
This is a Category 1 finding because no accounts with blank passwords should exist on a system. The password policy should prevent this from occurring. However, if a local account with a blank password does exist, enabling this setting will limit the account to local console logon only.
V-3347
high
This is a Category 1 finding because not removing these services may allow unauthorized internet services to be hosted. Web sites should only be hosted on servers that have been designed for that purpose and can be adequately secured.
V-3348
medium
This setting prevents the Windows Messenger client from being run.

Instant Messaging clients must be in compliance of with the Instant Messaging STIG. Windows Messenger should not be active on Windows unless the instant messaging system is a Managed Enterprise Service for unclassified data for which the DAA has approved.
V-3349
medium
This setting prevents the automatic launch of Windows Messenger at user logon.

Instant Messaging clients must be in compliance of with the Instant Messaging STIG. Windows Messenger should not be active on Windows unless the instant messaging system is a Managed Enterprise Service for unclassified data for which the DAA has approved.
V-3373
low
This setting controls the maximum password age that a machine account may have. This setting should be set to no more than 30 days, ensuring the machine changes its password monthly.
V-3374
medium
This setting controls the required strength of a session key.
V-3375
low
This setting controls the behavior of the system when you attempt to unlock the workstation. If this setting is enabled, the system will pass the credentials to the domain controller (if in a domain) for authentication before allowing the system to be unlocked. This will be set to disabled per the FDCC.
V-3376
medium
This setting controls the storage of authentication credentials or .NET passports on the local system. Such credentials should never be stored on the local machine as that may lead to account compromise.
V-3377
medium
This setting helps define the permissions that anonymous users have. If this setting is enabled then anonymous users have the same rights and permissions as the built-in Everyone group. Anonymous users should not have these permissions or rights.
V-3378
medium
Windows includes two network-sharing security models - Classic and Guest only. With the classic model, local accounts must be password protected; otherwise, anyone can use guest user accounts to access shared system resources.
V-3379
high
The LAN Manager hash uses a weak encryption algorithm. Account passwords can be retrieved from this hash using available tools. This setting controls whether or not a LAN Manager hash of the password is stored in the SAM the next time the password is changed.
V-3380
medium
This setting controls whether or not users are forced to log off when their allowed logon hours expire. If logon hours are set for users, then this should be enforced.
V-3381
medium
This setting controls the signing requirements for LDAP clients. This setting should be set to Negotiate signing or Require signing depending on the environment and type of LDAP server in use.
V-3382
medium
Microsoft has implemented a variety of security support providers for use with RPC sessions. In a homogenous Windows environment, all of the options should be enabled and testing should be performed in a heterogeneous environment to determine the maximum-security level that provides reliable functionality.
V-3383
medium
This setting ensures that the system uses algorithms that are FIPS compliant for encryption, hashing, and signing. FIPS compliant algorithms meet specific standards established by the U.S. Government and should be the algorithms used for all OS encryption functions.
V-3385
medium
This setting controls the behavior of non-Windows subsystems when dealing with the case of arguments or commands. Case sensitivity could lead to the access of files or commands that must be restricted. To prevent this from happening, case insensitivity restrictions must be required.
V-3426
medium
Remote desktop sharing enables several users to interact and control one desktop. This could allow unauthorized users to control the system. Remote desktop sharing should be disabled.
V-3453
medium
This setting controls the ability of users to supply passwords automatically as part of their Remote Desktop Connection. Disabling this setting would allow anyone to use the stored credentials in a connection item to connect to the terminal server.
V-3454
medium
Remote connections must be encrypted to prevent interception of data or sensitive information. Selecting "High Level" will ensure encryption of Terminal Services sessions in both directions.
V-3455
medium
This setting, which is located under the Temporary Folders section of the Terminal Services configuration option, controls the use of per session temporary folders or of a communal temporary folder. If this setting is enabled, only one temporary folder is used for all terminal services sessions. If a communal temporary folder is used, it might be possible for users to access other users temporary folders.
V-3456
medium
This setting, which is located under the Temporary Folders section of the Terminal Services configuration option, controls the deletion of the temporary folders when the session is terminated. Temporary folders should always be deleted after a session is over to prevent hard disk clutter and potential leakage of information.
V-3457
medium
This setting controls how long a session will remain open if it is unexpectedly terminated. Such sessions should be terminated as soon as possible.
V-3458
medium
This setting controls how long a session may be idle before it is automatically disconnected from the server. Users should disconnect if they plan on being away from their terminals for extended periods of time. Idle sessions should be disconnected after 15 minutes.
V-3469
medium
If this setting is enabled, then Group Policy settings are not refreshed while a user is currently logged on. This could lead to instances when a user does not have the latest changes to a policy applied and is therefore operating in an insecure context.
V-3470
medium
This setting controls whether unsolicited offers of help to this computer are allowed. The list of users allowed to offer remote assistance to this system is accessed by pressing the Helpers button.
V-3472
low
The Windows Time Service controls time synchronization settings. Time synchronization is essential for authentication and auditing purposes. If the Windows Time Service is used, it should synchronize with a secure, authorized time source. Domain joined systems are automatically configured to synchronize with domain controllers. If an NTP server is configured it should synchronize with a secure, authorized time source.
V-3479
medium
The default search behavior, when an application calls a function in a Dynamic Link Library (DLL), is to search the current directory followed by the directories contained in the systems path environment variable. An unauthorized DLL inserted into an applications working directory could allow malicious code to be run on the system. Creating the following registry key and setting the appropriate value forces the system to search the %Systemroot% for the DLL before searching the current directory or the rest of the path.
V-3480
medium
Uncontrolled system updates can introduce issues to a system. The automatic check for updates performed by Windows Media Player must be disabled to ensure a constant platform and to prevent the introduction of unknown\untested software on the system.
V-34974
high
Standard user accounts must not be granted elevated privileges. Enabling Windows Installer to elevate privileges when installing applications can allow malicious persons and applications to gain full control of a system.
V-36439
medium
A compromised local administrator account can provide means for an attacker to move laterally between domain systems.

With User Account Control enabled, filtering the privileged token for local administrator accounts will prevent the elevated privileges of these accounts from being used over the network.
V-36440
medium
Allowing inbound access to domain workstations from other systems may allow lateral movement across systems if credentials are compromised. Limiting inbound connections only from authorized management systems and remote management hosts will help limit this exposure.
V-36451
high
Using applications that access the internet or have potential internet sources using administrative privileges exposes a system to compromise. If a flaw in an application is exploited while running as a privileged user, the entire system could be compromised. Web browsers and email are common attack vectors for introducing malicious code and must not be run with an administrative user account.

Since administrative user accounts may generally change or work around technical restrictions for running a web browser or other applications, it is essential that policy requires administrative users not access the internet or use applications, such as email.

The policy should define specific exceptions for local service administration. These exceptions may include HTTP(S)-based tools that are used for the administration of the local system, services, or attached devices.
V-3666
medium
Microsoft has implemented a variety of security support providers for use with RPC sessions. In a homogenous Windows environment, all of the options should be enabled and testing should be performed in a heterogeneous environment to determine the maximum-security level that provides reliable functionality.
V-36701
medium
Attackers are constantly looking for vulnerabilities in systems and applications. The Enhanced Mitigation Experience Toolkit can enable several mechanisms, such as Data Execution Prevention (DEP), Address Space Layout Randomization (ASLR), and Structured Exception Handler Overwrite Protection (SEHOP) on the system and applications adding additional levels of protection.
V-36702
medium
Attackers are constantly looking for vulnerabilities in systems and applications. The Enhanced Mitigation Experience Toolkit can enable several mechanisms, such as Data Execution Prevention (DEP), Address Space Layout Randomization (ASLR), and Structured Exception Handler Overwrite Protection (SEHOP) on the system and applications adding additional levels of protection.
V-36703
medium
Attackers are constantly looking for vulnerabilities in systems and applications. The Enhanced Mitigation Experience Toolkit can enable several mechanisms, such as Data Execution Prevention (DEP), Address Space Layout Randomization (ASLR), and Structured Exception Handler Overwrite Protection (SEHOP) on the system and applications adding additional levels of protection.
V-36704
medium
Attackers are constantly looking for vulnerabilities in systems and applications. The Enhanced Mitigation Experience Toolkit can enable several mechanisms, such as Data Execution Prevention (DEP), Address Space Layout Randomization (ASLR), and Structured Exception Handler Overwrite Protection (SEHOP) on the system and applications adding additional levels of protection.
V-36705
medium
Attackers are constantly looking for vulnerabilities in systems and applications. The Enhanced Mitigation Experience Toolkit can enable several mechanisms, such as Data Execution Prevention (DEP), Address Space Layout Randomization (ASLR), and Structured Exception Handler Overwrite Protection (SEHOP) on the system and applications adding additional levels of protection.
V-36706
medium
Attackers are constantly looking for vulnerabilities in systems and applications. The Enhanced Mitigation Experience Toolkit can enable several mechanisms, such as Data Execution Prevention (DEP), Address Space Layout Randomization (ASLR), and Structured Exception Handler Overwrite Protection (SEHOP) on the system and applications adding additional levels of protection.
V-3828
medium
Major software vendors release security patches and hot fixes to their products when security vulnerabilities are discovered. It is essential that these updates be applied in a timely manner to prevent unauthorized persons from exploiting identified vulnerabilities.

The Severity code may be elevated to a Category I if patches deemed Critical have not been applied.
V-39137
high
Attackers are constantly looking for vulnerabilities in systems and applications. The Enhanced Mitigation Experience Toolkit can enable several mechanisms, such as Data Execution Prevention (DEP), Address Space Layout Randomization (ASLR), and Structured Exception Handler Overwrite Protection (SEHOP) on the system and applications adding additional levels of protection.
V-40237
medium
To ensure users do not experience denial of service when performing certificate-based authentication to DoD websites due to the system chaining to a root other than DoD Root CAs, the US DoD CCEB Interoperability Root CA cross-certificate must be installed in the Untrusted Certificate Store. This requirement only applies to unclassified systems.
V-4107
high
Windows operating systems that are no longer supported by Microsoft for security updates are not evaluated or updated for vulnerabilities leaving them open to potential attack. Organizations must upgrade to a supported operating system to ensure continued support.
V-4108
low
Audit records may be lost if the security log becomes full. When the audit log reaches a given percent full, an audit event is written to the security log. An event is recorded as a success audit under the category of System. This option may be especially useful if the audit logs are set to be cleared manually.
V-4110
low
Protects against IP source routing spoofing.
V-4111
low
When disabled, forces ICMP to be routed via shortest path first.
V-4112
low
Enables or disables the Internet Router Discovery Protocol (IRDP) used to detect and configure Default Gateway addresses on the computer.
V-4113
low
Controls how often TCP sends a keep-alive packet in attempting to verify that an idle connection is still intact.
V-4116
low
Configuring the system to ignore name release requests, except from WINS servers, prevents a denial of service (DoS) attack. The DoS consists of sending a NetBIOS name release request to the server for each entry in the server's cache, causing a response delay in the normal operation of the servers WINS resolution capability.
V-42420
medium
A firewall provides a line of defense against attack, allowing or blocking inbound and outbound connections based on a set of rules.
V-4438
low
In a SYN flood attack, the attacker sends a continuous stream of SYN packets to a server, and the server leaves the half-open connections open until it is overwhelmed and no longer is able to respond to legitimate requests.
V-4442
low
Allowing more than several seconds makes the computer vulnerable to a potential attack from someone walking up to the console to attempt to log onto the system before the lock takes effect.
V-4443
high
The registry is a database for computer configuration information, much of which is sensitive. An attacker could use this to facilitate unauthorized activities. To reduce the risk of this happening, it is also lowered by the fact that the default ACLs assigned throughout the registry are fairly restrictive and they help to protect it from access by unauthorized users.
V-4448
medium
Enabling this setting and then selecting the "Process even if the Group Policy objects have not changed" option ensures that the policies will be reprocessed even if none have been changed. This way, any unauthorized changes are forced to match the domain-based group policy settings again.
V-45589
low
Several user rights on domain systems require that local administrator accounts be assigned to them. This is separate from the built-in Administrators group, which also contains domain administrative accounts/groups. Defining a consistent group name allows compliance to be more easily determined.
V-56421
low
The touch keyboard or input panel may highlight keys as passwords are entered, providing visibility to nearby persons, and compromising them.
V-56511
medium
Windows Error Reporting information can be used to help diagnose day-to-day software issues, as well as help discover malicious code and possibly zero-day attacks on systems.
V-57455
medium
Displaying error messages to users provides them the option of sending the reports. Error reports should be sent silently, unknown to the user. This setting controls whether users are shown an error dialog box that lets them report an error.
V-57457
medium
Forwarding error reports to vendors could expose sensitive information. This setting controls the configuration of a local or DOD-wide error reporting site. In order to not send the data to any system at this time, yet create the reports locally on the system, this value needs to be a single blank character. To forward error reports to a collection server, the site's error reporting server name or IP address must be defined.
V-57459
medium
The use of SSL enables the secure forwarding of error reporting data from local systems to a reporting site.
V-57461
medium
An error reporting site's TCP port must be defined in the local system in order to forward data from local systems via TCP. Port 1232 is the recommended port setting.
V-57463
medium
The error reporting archive is stored locally on the system, and is created after an error report has been sent to the local collector or DOD-wide collector (if defined). This creates a backup of the error reporting.
V-57465
medium
The error reporting archive is stored locally on the system and is created after an error report has been sent to the local collector or DOD-wide collector (if defined). Storing all data, including memory contents, adds data that is very helpful in analyzing the errors.
V-57467
medium
The retention of archived reports provides a history. Older reports are automatically deleted as new reports are generated once the maximum limit has been met. The archive is stored locally on the system and is created after the error report has been sent to the local collector or DOD-wide collector (if defined).
V-57469
medium
Queueing error reports provides the ability for a system to collect reports locally or until a collection server can be contacted. Valuable system diagnostic and vulnerability information may be lost if the report queue is disabled.
V-57471
medium
Error reports are queued for sending to an error reporting site when the queueing behavior is set to Always Queue. This will maintain the reports in the queue until a connection can be made to the collection server.
V-57473
medium
The error reporting queue is stored locally on the system and contains the error reports until they have been manually removed or automatically sent to the local collector or DOD-wide collector (if defined). Once a report has been sent to a collector, it is moved to the report archive. Old reports are deleted as new ones arrive once the maximum limit has been met.
V-57475
medium
Error reports stored in the queue should be forwarded to a local or DOD-wide collection site when the system can connect to the site. This setting controls the frequency a system will use to try forwarding queued reports to the local or DOD-wide collector.
V-57477
medium
Configuring error reporting to send all requested data ensures all relevant data associated with the error report is captured for later analysis. This setting determines the default consent behavior of Windows Error Reporting.
V-57479
medium
This setting determines the behavior of the "Configure Default Consent" setting in relation to custom consent settings. Enabling this allows the default consent levels of Windows Error Reporting to always override any other consent policy setting.
V-6825
medium
The DCOM default authentication level has been detected to be below the required setting. If the authentication level is None, then any user can access any object on the system without authentication.
V-6826
medium
A registry key for a valid DCOM object has access permissions that could allow non-administrator users to change the security settings if inadvertently set to a low level of security. An attacker could possibly execute code under the context of the console or some other user.
V-6830
medium
DCOM calls are executed under the security context of the calling user by default. If the RunAs key has been altered, the DCOM calls can be executed under the user context of the currently logged in user, or as a third user. If present, the RunAs value tells the COM Service Control Manager (SCM) the name of the account under which the server is to be activated. In addition to the account name, the COM SCM must also have the password of the account. The result of a successful logon is a security context (token) for the named account that is used as the primary token for the new COM server process. Administrators should not use this method in the evaluated configuration if accountability is required, since accountability cannot be enforced.
RunAs values will be removed.
V-6831
medium
Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but not all information is encrypted. If this policy is enabled, outgoing secure channel traffic will be encrypted and signed.
V-6832
medium
If this policy is enabled, it causes the Windows Server Message Block (SMB) client to perform SMB packet signing when communicating with an SMB server that is enabled or required to perform SMB packet signing.
V-6833
medium
If this policy is enabled, it causes the Windows Server Message Block (SMB) server to always perform SMB packet signing.
V-6834
high
This is a Category 1 finding because of the potential for gaining unauthorized system access.

Pipes are internal system communications processes. They are identified internally by ID numbers that vary between systems. To make access to these processes easier, these pipes are given names that do not vary between systems.

When this setting is disabled, Network shares can be accessed by any network user. This could lead to the exposure or corruption of sensitive data.
V-6836
medium
Information systems not protected with strong password schemes including passwords of minimum length provide the opportunity for anyone to crack the password thus gaining access to the system and causing the device, information, or the local network to be compromised or a denial of service.
V-6840
medium
Passwords that do not expire or are reused increase the exposure of a password with greater probability of being discovered or cracked.
V-6850
medium
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior.
V-7002
high
The lack of password protection enables anyone to gain access to the information system, which opens a backdoor opportunity for intruders to compromise the system as well as other resources within the same administrative domain.