II - Mission Support Classified
Rules and Groups employed by this XCCDF Profile
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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 perm...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 restr...Rule High Severity -
SRG-OS-000324-GPOS-00125
<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 Adminis...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
NTLM must be prevented 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 -
PKU2U authentication using online identities must be prevented.
<VulnDiscussion>PKU2U is a peer-to-peer authentication protocol. This setting prevents online identities from authenticating to domain-join...Rule Medium Severity -
SRG-OS-000120-GPOS-00061
<GroupDescription></GroupDescription>Group -
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. This setting configures a minimum encryption type for Kerberos, pr...Rule Medium Severity -
SRG-OS-000073-GPOS-00041
<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 -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The LanMan authentication level must be set 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. NT...Rule High Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The system must be configured to the required LDAP client signing level.
<VulnDiscussion>This setting controls the signing requirements for LDAP clients. This setting must be set to Negotiate signing or Require si...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The system must be configured to meet the minimum session security requirement for NTLM SSP based clients.
<VulnDiscussion>Microsoft has implemented a variety of security support providers for use with RPC sessions. All of the options must be enab...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The system must be configured to meet the minimum session security requirement for NTLM SSP based servers.
<VulnDiscussion>Microsoft has implemented a variety of security support providers for use with RPC sessions. All of the options must be enab...Rule Medium Severity -
SRG-OS-000478-GPOS-00223
<GroupDescription></GroupDescription>Group -
The system must be configured to use FIPS-compliant algorithms for encryption, hashing, and signing.
<VulnDiscussion>This setting ensures that the system uses algorithms that are FIPS-compliant for encryption, hashing, and signing. FIPS-comp...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The default permissions of global system objects must be increased.
<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-00157
<GroupDescription></GroupDescription>Group -
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-000134-GPOS-00068
<GroupDescription></GroupDescription>Group -
User Account Control must, at minimum, prompt administrators for consent on 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-000105-GPOS-00052
<GroupDescription></GroupDescription>Group -
Windows 10 must use multifactor authentication for local and network access to privileged and nonprivileged accounts.
<VulnDiscussion>Without the use of multifactor authentication, the ease of access to privileged and nonprivileged functions is greatly increa...Rule Medium Severity -
SRG-OS-000373-GPOS-00157
<GroupDescription></GroupDescription>Group -
User Account Control must automatically deny elevation requests for standard users.
<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 -
User Account Control must be configured to detect application installations and prompt 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-000134-GPOS-00068
<GroupDescription></GroupDescription>Group -
User Account Control must only elevate UIAccess applications that are installed in secure locations.
<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 -
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-000134-GPOS-00068
<GroupDescription></GroupDescription>Group -
User Account Control must virtualize file and registry write failures to per-user locations.
<VulnDiscussion>User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative account...Rule Medium Severity -
SRG-OS-000076-GPOS-00044
<GroupDescription></GroupDescription>Group -
Passwords for enabled local Administrator accounts 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. A lo...Rule Medium Severity -
SRG-OS-000095-GPOS-00049
<GroupDescription></GroupDescription>Group -
Toast notifications to the lock screen must be turned off.
<VulnDiscussion>Toast notifications that are displayed on the lock screen could display sensitive information to unauthorized personnel. Tur...Rule Low Severity
Node 2
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