II - Mission Support Public
Rules and Groups employed by this XCCDF Profile
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SRG-OS-000138-GPOS-00069
Group -
Local drives must be prevented from sharing with Remote Desktop Session Hosts.
Preventing users from sharing the local drives on their client computers with Remote Session Hosts that they access helps reduce possible exposure of sensitive data.Rule Medium Severity -
SRG-OS-000373-GPOS-00157
Group -
Remote Desktop Services must always prompt a client for passwords upon connection.
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...Rule Medium Severity -
SRG-OS-000250-GPOS-00093
Group -
The Remote Desktop Session Host must require secure Remote Procedure Call (RPC) communications.
Allowing unsecure RPC communication exposes the system to man-in-the-middle attacks and data disclosure attacks. A man-in-the-middle attack occurs when an intruder captures packets between a client...Rule Medium Severity -
SRG-OS-000250-GPOS-00093
Group -
Remote Desktop Services must be configured with the client connection encryption set to High Level.
Remote connections must be encrypted to prevent interception of data or sensitive information. Selecting "High Level" will ensure encryption of Remote Desktop Services sessions in both directions.Rule Medium Severity -
SRG-OS-000480-GPOS-00227
Group -
Attachments must be prevented from being downloaded from RSS feeds.
Attachments from RSS feeds may not be secure. This setting will prevent attachments from being downloaded from RSS feeds.Rule Medium Severity -
SRG-OS-000095-GPOS-00049
Group -
Basic authentication for RSS feeds over HTTP must not be used.
Basic authentication uses plain-text passwords that could be used to compromise a system. Disabling Basic authentication will reduce this potential.Rule Medium Severity -
SRG-OS-000095-GPOS-00049
Group -
Indexing of encrypted files must be turned off.
Indexing of encrypted files may expose sensitive data. This setting prevents encrypted files from being indexed.Rule Medium Severity -
SRG-OS-000362-GPOS-00149
Group -
Users must be prevented from changing installation options.
Installation options for applications are typically controlled by administrators. This setting prevents users from changing installation options that may bypass security features.Rule Medium Severity -
SRG-OS-000362-GPOS-00149
Group -
The Windows Installer Always install with elevated privileges option must be disabled.
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 fu...Rule High Severity -
SRG-OS-000480-GPOS-00227
Group -
Users must be notified if a web-based program attempts to install software.
Web-based programs may attempt to install malicious software on a system. Ensuring users are notified if a web-based program attempts to install software allows them to refuse the installation.Rule Medium Severity -
SRG-OS-000480-GPOS-00229
Group -
Automatically signing in the last interactive user after a system-initiated restart must be disabled.
Windows can be configured to automatically sign the user back in after a Windows Update restart. Some protections are in place to help ensure this is done in a secure fashion; however, disabling th...Rule Medium Severity -
SRG-OS-000042-GPOS-00020
Group -
PowerShell script block logging must be enabled.
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. A...Rule Medium Severity -
SRG-OS-000125-GPOS-00065
Group -
The Windows Remote Management (WinRM) client must not use Basic authentication.
Basic authentication uses plain-text passwords that could be used to compromise a system. Disabling Basic authentication will reduce this potential.Rule High Severity -
SRG-OS-000393-GPOS-00173
Group -
The Windows Remote Management (WinRM) client must not allow unencrypted traffic.
Unencrypted remote access to a system can allow sensitive information to be compromised. Windows remote management connections must be encrypted to prevent this. Satisfies: SRG-OS-000393-GPOS-0017...Rule Medium Severity -
SRG-OS-000125-GPOS-00065
Group -
The Windows Remote Management (WinRM) client must not use Digest authentication.
Digest authentication is not as strong as other options and may be subject to man-in-the-middle attacks. Disallowing Digest authentication will reduce this potential.Rule Medium Severity -
SRG-OS-000125-GPOS-00065
Group -
The Windows Remote Management (WinRM) service must not use Basic authentication.
Basic authentication uses plain-text passwords that could be used to compromise a system. Disabling Basic authentication will reduce this potential.Rule High Severity -
SRG-OS-000393-GPOS-00173
Group -
The Windows Remote Management (WinRM) service must not allow unencrypted traffic.
Unencrypted remote access to a system can allow sensitive information to be compromised. Windows remote management connections must be encrypted to prevent this. Satisfies: SRG-OS-000393-GPOS-0017...Rule Medium Severity -
SRG-OS-000373-GPOS-00157
Group -
The Windows Remote Management (WinRM) service must not store RunAs credentials.
Storage of administrative credentials could allow unauthorized access. Disallowing the storage of RunAs credentials for Windows Remote Management will prevent them from being used with plug-ins. S...Rule Medium Severity -
SRG-OS-000324-GPOS-00125
Group -
Only administrators responsible for the domain controller must have Administrator rights on the system.
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 mak...Rule High Severity -
SRG-OS-000112-GPOS-00057
Group -
Kerberos user logon restrictions must be enforced.
This policy setting determines whether the Kerberos Key Distribution Center (KDC) validates every request for a session ticket against the user rights policy of the target computer. The policy is e...Rule Medium Severity -
SRG-OS-000112-GPOS-00057
Group -
The Kerberos service ticket maximum lifetime must be limited to 600 minutes or less.
This setting determines the maximum amount of time (in minutes) that a granted session ticket can be used to access a particular service. Session tickets are used only to authenticate new connectio...Rule Medium Severity -
SRG-OS-000112-GPOS-00057
Group -
The Kerberos user ticket lifetime must be limited to 10 hours or less.
In Kerberos, there are two types of tickets: Ticket Granting Tickets (TGTs) and Service Tickets. Kerberos tickets have a limited lifetime so the time an attacker has to implement an attack is limit...Rule Medium Severity -
SRG-OS-000112-GPOS-00057
Group -
The Kerberos policy user ticket renewal maximum lifetime must be limited to seven days or less.
This setting determines the period of time (in days) during which a user's Ticket Granting Ticket (TGT) may be renewed. This security configuration limits the amount of time an attacker has to crac...Rule Medium Severity -
SRG-OS-000112-GPOS-00057
Group -
The computer clock synchronization tolerance must be limited to 5 minutes or less.
This setting determines the maximum time difference (in minutes) that Kerberos will tolerate between the time on a client's clock and the time on a server's clock while still considering the two cl...Rule Medium Severity -
SRG-OS-000324-GPOS-00125
Group -
Permissions on the Active Directory data files must only allow System and Administrators access.
Improper access permissions for directory data-related files could allow unauthorized users to read, modify, or delete directory data or audit trails.Rule High Severity
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