Microsoft Windows 11 Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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The Smart Card removal option must be configured to Force Logoff or Lock Workstation.
<VulnDiscussion>Unattended systems are susceptible to unauthorized use and must be locked. Configuring a system to lock when a smart card is ...Rule Medium Severity -
SRG-OS-000423-GPOS-00187
<GroupDescription></GroupDescription>Group -
The Windows SMB client must be configured to always perform SMB packet signing.
<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-000074-GPOS-00042
<GroupDescription></GroupDescription>Group -
Remote calls to the Security Account Manager (SAM) must be restricted to Administrators.
<VulnDiscussion>The Windows Security Account Manager (SAM) stores users' passwords. Restricting remote rpc connections to the SAM to Administ...Rule Medium Severity -
Unencrypted passwords must not be sent to third-party 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-000423-GPOS-00187
<GroupDescription></GroupDescription>Group -
The Windows SMB server must be configured to always perform SMB packet signing.
<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 -
Anonymous SID/Name translation must not be allowed.
<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 -
Anonymous enumeration of SAM accounts must not be allowed.
<VulnDiscussion>Anonymous enumeration of SAM accounts allows anonymous log on users (null session connections) to list all accounts names, th...Rule High Severity -
SRG-OS-000138-GPOS-00069
<GroupDescription></GroupDescription>Group -
Anonymous enumeration of shares must be restricted.
<VulnDiscussion>Allowing anonymous logon users (null session connections) to list all account names and enumerate all shared resources can pr...Rule High Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The system must be configured to prevent anonymous users from having the same rights as the Everyone group.
<VulnDiscussion>Access by anonymous users must be restricted. If this setting is enabled, then anonymous users have the same rights and permi...Rule Medium Severity -
SRG-OS-000138-GPOS-00069
<GroupDescription></GroupDescription>Group -
Anonymous access to Named Pipes and Shares must be restricted.
<VulnDiscussion>Allowing anonymous access to named pipes or shares provides the potential for unauthorized system access. This setting restri...Rule High Severity -
SRG-OS-000324-GPOS-00125
<GroupDescription></GroupDescription>Group -
The system 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
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