DRAFT - ANSSI-BP-028 (high)
Rules and Groups employed by this XCCDF Profile
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Disable the selinuxuser_execstack SELinux Boolean
By default, the SELinux boolean <code>selinuxuser_execstack</code> is enabled. This setting should be disabled as unconfined executables should not...Rule Medium Severity -
Disable the ssh_sysadm_login SELinux Boolean
By default, the SELinux boolean <code>ssh_sysadm_login</code> is disabled. If this setting is enabled, it should be disabled. To disable the <code...Rule Medium Severity -
Services
The best protection against vulnerable software is running less software. This section describes how to review the software which Red Hat Enterpris...Group -
DHCP
The Dynamic Host Configuration Protocol (DHCP) allows systems to request and obtain an IP address and other configuration parameters from a server....Group -
Disable DHCP Server
The DHCP server <code>dhcpd</code> is not installed or activated by default. If the software was installed and activated, but the system does not n...Group -
Uninstall kea Package
If the system does not need to act as a DHCP server, the kea package can be uninstalled.Rule Medium Severity -
Mail Server Software
Mail servers are used to send and receive email over the network. Mail is a very common service, and Mail Transfer Agents (MTAs) are obvious target...Group -
Configure SMTP For Mail Clients
This section discusses settings for Postfix in a submission-only e-mail configuration.Group -
Configure System to Forward All Mail For The Root Account
Make sure that mails delivered to root user are forwarded to a monitored email address. Make sure that the address <xccdf-1.2:sub idref="xccdf_org....Rule Medium Severity -
Disable Postfix Network Listening
Edit the file <code>/etc/postfix/main.cf</code> to ensure that only the following <code>inet_interfaces</code> line appears: <pre>inet_interfaces =...Rule Medium Severity -
Network Time Protocol
The Network Time Protocol is used to manage the system clock over a network. Computer clocks are not very accurate, so time will drift unpredictabl...Group -
The Chrony package is installed
System time should be synchronized between all systems in an environment. This is typically done by establishing an authoritative time server or se...Rule Medium Severity -
The Chronyd service is enabled
chrony is a daemon which implements the Network Time Protocol (NTP) is designed to synchronize system clocks across a variety of systems and use a ...Rule Medium Severity -
A remote time server for Chrony is configured
<code>Chrony</code> is a daemon which implements the Network Time Protocol (NTP). It is designed to synchronize system clocks across a variety of s...Rule Medium Severity -
Chrony Configure Pool and Server
<code>Chrony</code> is a daemon which implements the Network Time Protocol (NTP). It is designed to synchronize system clocks across a variety of s...Rule Medium Severity -
Verify Group Who Owns /etc/chrony.keys File
To properly set the group owner of/etc/chrony.keys, run the command:$ sudo chgrp chrony /etc/chrony.keys
Rule Medium Severity -
Verify User Who Owns /etc/chrony.keys File
To properly set the owner of/etc/chrony.keys, run the command:$ sudo chown root /etc/chrony.keys
Rule Medium Severity -
Verify Permissions On /etc/chrony.keys File
To properly set the permissions of/etc/chrony.keys, run the command:$ sudo chmod 0640 /etc/chrony.keys
Rule Medium Severity -
Obsolete Services
This section discusses a number of network-visible services which have historically caused problems for system security, and for which disabling or...Group -
Telnet
The telnet protocol does not provide confidentiality or integrity for information transmitted on the network. This includes authentication informat...Group
Node 2
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