Microsoft Windows Server 2022 Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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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-000480-GPOS-00227
<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
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