II - Mission Support Classified
Rules and Groups employed by this XCCDF Profile
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SRG-OS-000362-GPOS-00149
<GroupDescription></GroupDescription>Group -
Windows Server 2019 must prevent users from changing installation options.
<VulnDiscussion>Installation options for applications are typically controlled by administrators. This setting prevents users from changing i...Rule Medium Severity -
SRG-OS-000362-GPOS-00149
<GroupDescription></GroupDescription>Group -
Windows Server 2019 must disable the Windows Installer Always install with elevated privileges option.
<VulnDiscussion>Standard user accounts must not be granted elevated privileges. Enabling Windows Installer to elevate privileges when install...Rule High Severity -
SRG-OS-000363-GPOS-00150
<GroupDescription></GroupDescription>Group -
Windows Server 2019 system files must be monitored for unauthorized changes.
<VulnDiscussion>Monitoring system files for changes against a baseline on a regular basis may help detect the possible introduction of malici...Rule Medium Severity -
SRG-OS-000368-GPOS-00154
<GroupDescription></GroupDescription>Group -
Windows Server 2019 Autoplay must be turned off for non-volume devices.
<VulnDiscussion>Allowing AutoPlay to execute may introduce malicious code to a system. AutoPlay begins reading from a drive as soon as media ...Rule High Severity -
SRG-OS-000368-GPOS-00154
<GroupDescription></GroupDescription>Group -
Windows Server 2019 default AutoRun behavior must be configured to prevent AutoRun commands.
<VulnDiscussion>Allowing AutoRun commands to execute may introduce malicious code to a system. Configuring this setting prevents AutoRun comm...Rule High Severity -
SRG-OS-000368-GPOS-00154
<GroupDescription></GroupDescription>Group -
Windows Server 2019 AutoPlay must be disabled for all drives.
<VulnDiscussion>Allowing AutoPlay to execute may introduce malicious code to a system. AutoPlay begins reading from a drive as soon media is ...Rule High Severity -
SRG-OS-000370-GPOS-00155
<GroupDescription></GroupDescription>Group -
Windows Server 2019 must employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs.
<VulnDiscussion>Using an allowlist provides a configuration management method to allow the execution of only authorized software. Using only ...Rule Medium Severity -
SRG-OS-000373-GPOS-00157
<GroupDescription></GroupDescription>Group -
Windows Server 2019 must not save passwords in the Remote Desktop Client.
<VulnDiscussion>Saving passwords in the Remote Desktop Client could allow an unauthorized user to establish a remote desktop session to anoth...Rule Medium Severity -
SRG-OS-000373-GPOS-00157
<GroupDescription></GroupDescription>Group -
Windows Server 2019 Remote Desktop Services must always prompt a client for passwords upon connection.
<VulnDiscussion>This setting controls the ability of users to supply passwords automatically as part of their remote desktop connection. Disa...Rule Medium Severity -
SRG-OS-000373-GPOS-00157
<GroupDescription></GroupDescription>Group -
Windows Server 2019 Windows Remote Management (WinRM) service must not store RunAs credentials.
<VulnDiscussion>Storage of administrative credentials could allow unauthorized access. Disallowing the storage of RunAs credentials for Windo...Rule Medium Severity -
SRG-OS-000373-GPOS-00157
<GroupDescription></GroupDescription>Group -
Windows Server 2019 User Account Control approval mode for the built-in Administrator must be enabled.
<VulnDiscussion>User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative account...Rule Medium Severity -
SRG-OS-000373-GPOS-00157
<GroupDescription></GroupDescription>Group -
Windows Server 2019 User Account Control must automatically deny standard user requests for elevation.
<VulnDiscussion>User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative account...Rule Medium Severity -
SRG-OS-000373-GPOS-00157
<GroupDescription></GroupDescription>Group -
Windows Server 2019 User Account Control must run all administrators in Admin Approval Mode, enabling UAC.
<VulnDiscussion>User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative account...Rule Medium Severity -
SRG-OS-000379-GPOS-00164
<GroupDescription></GroupDescription>Group -
Windows Server 2019 must restrict unauthenticated Remote Procedure Call (RPC) clients from connecting to the RPC server on domain-joined member servers and standalone or nondomain-joined systems.
<VulnDiscussion>Unauthenticated RPC clients may allow anonymous access to sensitive information. Configuring RPC to restrict unauthenticated ...Rule Medium Severity -
SRG-OS-000379-GPOS-00164
<GroupDescription></GroupDescription>Group -
Windows Server 2019 computer account password must not be prevented from being reset.
<VulnDiscussion>Computer account passwords are changed automatically on a regular basis. Disabling automatic password changes can make the sy...Rule Medium Severity -
SRG-OS-000393-GPOS-00173
<GroupDescription></GroupDescription>Group -
Windows Server 2019 Windows Remote Management (WinRM) client must not allow unencrypted traffic.
<VulnDiscussion>Unencrypted remote access to a system can allow sensitive information to be compromised. Windows remote management connection...Rule Medium Severity -
SRG-OS-000393-GPOS-00173
<GroupDescription></GroupDescription>Group -
Windows Server 2019 Windows Remote Management (WinRM) service must not allow unencrypted traffic.
<VulnDiscussion>Unencrypted remote access to a system can allow sensitive information to be compromised. Windows remote management connection...Rule Medium Severity -
SRG-OS-000396-GPOS-00176
<GroupDescription></GroupDescription>Group -
Windows Server 2019 must use separate, NSA-approved (Type 1) cryptography to protect the directory data in transit for directory service implementations at a classified confidentiality level when replication data traverses a network cleared to a lower level than the data.
<VulnDiscussion>Directory data that is not appropriately encrypted is subject to compromise. Commercial-grade encryption does not provide ade...Rule Medium Severity -
SRG-OS-000420-GPOS-00186
<GroupDescription></GroupDescription>Group -
Windows Server 2019 must be configured to ignore NetBIOS name release requests except from WINS servers.
<VulnDiscussion>Configuring the system to ignore name release requests, except from WINS servers, prevents a denial of service (DoS) attack. ...Rule Low Severity -
SRG-OS-000423-GPOS-00187
<GroupDescription></GroupDescription>Group -
Windows Server 2019 domain controllers must require LDAP access signing.
<VulnDiscussion>Unsigned network traffic is susceptible to man-in-the-middle attacks, where an intruder captures packets between the server a...Rule Medium Severity -
SRG-OS-000423-GPOS-00187
<GroupDescription></GroupDescription>Group -
Windows Server 2019 setting Domain member: Digitally encrypt or sign secure channel data (always) must be configured to Enabled.
<VulnDiscussion>Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but not al...Rule Medium Severity -
SRG-OS-000423-GPOS-00187
<GroupDescription></GroupDescription>Group -
Windows Server 2019 setting Domain member: Digitally encrypt secure channel data (when possible) must be configured to enabled.
<VulnDiscussion>Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but not al...Rule Medium Severity -
SRG-OS-000423-GPOS-00187
<GroupDescription></GroupDescription>Group -
Windows Server 2019 setting Domain member: Digitally sign secure channel data (when possible) must be configured to Enabled.
<VulnDiscussion>Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but the ch...Rule Medium Severity -
SRG-OS-000423-GPOS-00187
<GroupDescription></GroupDescription>Group -
Windows Server 2019 must be configured to require a strong session key.
<VulnDiscussion>A computer connecting to a domain controller will establish a secure channel. The secure channel connection may be subject to...Rule Medium Severity -
SRG-OS-000423-GPOS-00187
<GroupDescription></GroupDescription>Group -
Windows Server 2019 setting Microsoft network client: Digitally sign communications (always) must be configured to Enabled.
<VulnDiscussion>The server message block (SMB) protocol provides the basis for many network operations. Digitally signed SMB packets aid in p...Rule Medium Severity
Node 2
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