Microsoft Windows Server 2019 Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-OS-000066-GPOS-00034
<GroupDescription></GroupDescription>Group -
Windows Server 2019 must have the DoD Interoperability Root Certificate Authority (CA) cross-certificates installed in the Untrusted Certificates Store on unclassified systems.
<VulnDiscussion>To ensure users do not experience denial of service when performing certificate-based authentication to DoD websites due to t...Rule Medium Severity -
SRG-OS-000066-GPOS-00034
<GroupDescription></GroupDescription>Group -
Windows Server 2019 must have the US DoD CCEB Interoperability Root CA cross-certificates in the Untrusted Certificates Store on unclassified systems.
<VulnDiscussion>To ensure users do not experience denial of service when performing certificate-based authentication to DoD websites due to t...Rule Medium Severity -
SRG-OS-000067-GPOS-00035
<GroupDescription></GroupDescription>Group -
Windows Server 2019 users must be required to enter a password to access private keys stored on the computer.
<VulnDiscussion>If the private key is discovered, an attacker can use the key to authenticate as an authorized user and gain access to the ne...Rule Medium Severity -
SRG-OS-000069-GPOS-00037
<GroupDescription></GroupDescription>Group -
Windows Server 2019 must have the built-in Windows password complexity policy enabled.
<VulnDiscussion>The use of complex passwords increases their strength against attack. The built-in Windows password complexity policy require...Rule Medium Severity -
SRG-OS-000073-GPOS-00041
<GroupDescription></GroupDescription>Group -
Windows Server 2019 reversible password encryption must be disabled.
<VulnDiscussion>Storing passwords using reversible encryption is essentially the same as storing clear-text versions of the passwords, which ...Rule High Severity -
SRG-OS-000073-GPOS-00041
<GroupDescription></GroupDescription>Group -
Windows Server 2019 must be configured to prevent the storage of the LAN Manager hash of passwords.
<VulnDiscussion>The LAN Manager hash uses a weak encryption algorithm and there are several tools available that use this hash to retrieve ac...Rule High Severity -
SRG-OS-000074-GPOS-00042
<GroupDescription></GroupDescription>Group -
Windows Server 2019 unencrypted passwords must not be sent to third-party Server Message Block (SMB) servers.
<VulnDiscussion>Some non-Microsoft SMB servers only support unencrypted (plain-text) password authentication. Sending plain-text passwords ac...Rule Medium Severity -
SRG-OS-000075-GPOS-00043
<GroupDescription></GroupDescription>Group -
Windows Server 2019 minimum password age must be configured to at least one day.
<VulnDiscussion>Permitting passwords to be changed in immediate succession within the same day allows users to cycle passwords through their ...Rule Medium Severity -
SRG-OS-000076-GPOS-00044
<GroupDescription></GroupDescription>Group -
Windows Server 2019 passwords for the built-in Administrator account must be changed at least every 60 days.
<VulnDiscussion>The longer a password is in use, the greater the opportunity for someone to gain unauthorized knowledge of the password. The ...Rule Medium Severity -
SRG-OS-000076-GPOS-00044
<GroupDescription></GroupDescription>Group -
Windows Server 2019 passwords must be configured to expire.
<VulnDiscussion>Passwords that do not expire or are reused increase the exposure of a password with greater probability of being discovered o...Rule Medium Severity -
SRG-OS-000076-GPOS-00044
<GroupDescription></GroupDescription>Group -
Windows Server 2019 maximum password age must be configured to 60 days or less.
<VulnDiscussion>The longer a password is in use, the greater the opportunity for someone to gain unauthorized knowledge of the passwords. Sch...Rule Medium Severity -
SRG-OS-000077-GPOS-00045
<GroupDescription></GroupDescription>Group -
Windows Server 2019 password history must be configured to 24 passwords remembered.
<VulnDiscussion>A system is more vulnerable to unauthorized access when system users recycle the same password several times without being re...Rule Medium Severity -
SRG-OS-000078-GPOS-00046
<GroupDescription></GroupDescription>Group -
Windows Server 2019 manually managed application account passwords must be at least 15 characters in length.
<VulnDiscussion>Application/service account passwords must be of sufficient length to prevent being easily cracked. Application/service accou...Rule Medium Severity -
SRG-OS-000078-GPOS-00046
<GroupDescription></GroupDescription>Group -
Windows Server 2019 minimum password length must be configured to 14 characters.
<VulnDiscussion>Information systems not protected with strong password schemes (including passwords of minimum length) provide the opportunit...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
Windows Server 2019 local volumes must use a format that supports NTFS attributes.
<VulnDiscussion>The ability to set access permissions and auditing is critical to maintaining the security and proper access controls of a sy...Rule High Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
Windows Server 2019 non-administrative accounts or groups must only have print permissions on printer shares.
<VulnDiscussion>Windows shares are a means by which files, folders, printers, and other resources can be published for network users to acces...Rule Low Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
Windows Server 2019 Access this computer from the network user right must only be assigned to the Administrators, Authenticated Users, and Enterprise Domain Controllers groups on domain controllers.
<VulnDiscussion>Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with t...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
Windows Server 2019 Allow log on through Remote Desktop Services user right must only be assigned to the Administrators group on domain controllers.
<VulnDiscussion>Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with t...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
Windows Server 2019 Deny access to this computer from the network user right on domain controllers must be configured to prevent unauthenticated access.
<VulnDiscussion>Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. The "Deny acces...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
Windows Server 2019 Deny log on as a batch job user right on domain controllers must be configured to prevent unauthenticated access.
<VulnDiscussion>Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. The "Deny log o...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
Windows Server 2019 Deny log on as a service user right must be configured to include no accounts or groups (blank) on domain controllers.
<VulnDiscussion>Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. The "Deny log o...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
Windows Server 2019 Deny log on locally user right on domain controllers must be configured to prevent unauthenticated access.
<VulnDiscussion>Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. The "Deny log o...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
Windows Server 2019 "Access this computer from the network" user right must only be assigned to the Administrators and Authenticated Users groups on domain-joined member servers and standalone or nondomain-joined systems.
<VulnDiscussion>Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with t...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
Windows Server 2019 "Deny access to this computer from the network" user right on domain-joined member servers must be configured to prevent access from highly privileged domain accounts and local accounts and from unauthenticated access on all systems.
<VulnDiscussion>Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. The "Deny acces...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
Windows Server 2019 "Deny log on as a batch job" user right on domain-joined member servers must be configured to prevent access from highly privileged domain accounts and from unauthenticated access on all systems.
<VulnDiscussion>Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. The "Deny log o...Rule Medium Severity
Node 2
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