Microsoft Windows Server 2022 Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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Windows Server 2022 setting Microsoft network server: 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 -
SRG-OS-000423-GPOS-00187
<GroupDescription></GroupDescription>Group -
Windows Server 2022 setting Microsoft network server: Digitally sign communications (if client agrees) 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 -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Windows Server 2022 must not allow anonymous SID/Name translation.
<VulnDiscussion>Allowing anonymous SID/Name translation can provide sensitive information for accessing a system. Only authorized users must ...Rule High Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Windows Server 2022 must not allow anonymous enumeration of Security Account Manager (SAM) accounts.
<VulnDiscussion>Anonymous enumeration of SAM accounts allows anonymous logon users (null session connections) to list all accounts names, thu...Rule High Severity -
SRG-OS-000138-GPOS-00069
<GroupDescription></GroupDescription>Group -
Windows Server 2022 back up files and directories user right must only be assigned to the Administrators group.
<VulnDiscussion>Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with t...Rule Medium Severity -
Windows Server 2022 must be configured to prevent anonymous users from having the same permissions as the Everyone group.
<VulnDiscussion>Access by anonymous users must be restricted. If this setting is enabled, anonymous users have the same rights and permission...Rule Medium Severity -
SRG-OS-000138-GPOS-00069
<GroupDescription></GroupDescription>Group -
Windows Server 2022 must restrict anonymous access to Named Pipes and Shares.
<VulnDiscussion>Allowing anonymous access to named pipes or shares provides the potential for unauthorized system access. This setting restri...Rule High Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Windows Server 2022 services using Local System that use Negotiate when reverting to NTLM authentication must use the computer identity instead of authenticating anonymously.
<VulnDiscussion>Services using Local System that use Negotiate when reverting to NTLM authentication may gain unauthorized access if allowed ...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Windows Server 2022 must prevent NTLM from falling back to a Null session.
<VulnDiscussion>NTLM sessions that are allowed to fall back to Null (unauthenticated) sessions may gain unauthorized access.</VulnDiscussi...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Windows Server 2022 must prevent PKU2U authentication using online identities.
<VulnDiscussion>PKU2U is a peer-to-peer authentication protocol. This setting prevents online identities from authenticating to domain-joined...Rule Medium Severity -
SRG-OS-000120-GPOS-00061
<GroupDescription></GroupDescription>Group -
Windows Server 2022 Kerberos encryption types must be configured to prevent the use of DES and RC4 encryption suites.
<VulnDiscussion>Certain encryption types are no longer considered secure. The DES and RC4 encryption suites must not be used for Kerberos enc...Rule Medium Severity -
SRG-OS-000073-GPOS-00041
<GroupDescription></GroupDescription>Group -
Windows Server 2022 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-000324-GPOS-00125
<GroupDescription></GroupDescription>Group -
Windows Server 2022 LAN Manager authentication level must be configured to send NTLMv2 response only and to refuse LM and NTLM.
<VulnDiscussion>The Kerberos v5 authentication protocol is the default for authentication of users who are logging on to domain accounts. NTL...Rule High Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Windows Server 2022 must be configured to at least negotiate signing for LDAP client signing.
<VulnDiscussion>This setting controls the signing requirements for LDAP clients. This must be set to "Negotiate signing" or "Require signing"...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Windows Server 2022 session security for NTLM SSP-based clients must be configured to require NTLMv2 session security and 128-bit encryption.
<VulnDiscussion>Microsoft has implemented a variety of security support providers for use with Remote Procedure Call (RPC) sessions. All of t...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Windows Server 2022 session security for NTLM SSP-based servers must be configured to require NTLMv2 session security and 128-bit encryption.
<VulnDiscussion>Microsoft has implemented a variety of security support providers for use with Remote Procedure Call (RPC) sessions. All of t...Rule Medium Severity -
SRG-OS-000067-GPOS-00035
<GroupDescription></GroupDescription>Group -
Windows Server 2022 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-000478-GPOS-00223
<GroupDescription></GroupDescription>Group -
Windows Server 2022 must be configured to use FIPS-compliant algorithms for encryption, hashing, and signing.
<VulnDiscussion>This setting ensures the system uses algorithms that are FIPS-compliant for encryption, hashing, and signing. FIPS-compliant ...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Windows Server 2022 default permissions of global system objects must be strengthened.
<VulnDiscussion>Windows systems maintain a global list of shared system resources such as DOS device names, mutexes, and semaphores. Each typ...Rule Low Severity -
SRG-OS-000373-GPOS-00156
<GroupDescription></GroupDescription>Group -
Windows Server 2022 User Account Control (UAC) approval mode for the built-in Administrator must be enabled.
<VulnDiscussion>UAC is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. T...Rule Medium Severity -
SRG-OS-000134-GPOS-00068
<GroupDescription></GroupDescription>Group -
Windows Server 2022 UIAccess applications must not be allowed to prompt for elevation without using the secure desktop.
<VulnDiscussion>User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative account...Rule Medium Severity -
SRG-OS-000134-GPOS-00068
<GroupDescription></GroupDescription>Group -
Windows Server 2022 User Account Control (UAC) must, at a minimum, prompt administrators for consent on the secure desktop.
<VulnDiscussion>UAC is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. T...Rule Medium Severity -
SRG-OS-000373-GPOS-00156
<GroupDescription></GroupDescription>Group -
Windows Server 2022 User Account Control (UAC) must automatically deny standard user requests for elevation.
<VulnDiscussion>UAC is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. T...Rule Medium Severity -
SRG-OS-000134-GPOS-00068
<GroupDescription></GroupDescription>Group -
Windows Server 2022 User Account Control (UAC) must be configured to detect application installations and prompt for elevation.
<VulnDiscussion>UAC is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. T...Rule Medium Severity -
SRG-OS-000134-GPOS-00068
<GroupDescription></GroupDescription>Group -
Windows Server 2022 create a pagefile user right must only be assigned to the Administrators group.
<VulnDiscussion>Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with t...Rule Medium Severity -
Windows Server 2022 User Account Control (UAC) must only elevate UIAccess applications that are installed in secure locations.
<VulnDiscussion>UAC is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. T...Rule Medium Severity -
SRG-OS-000373-GPOS-00156
<GroupDescription></GroupDescription>Group
Node 2
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