CIS Ubuntu 20.04 Level 2 Server Benchmark
Rules and Groups employed by this XCCDF Profile
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All AppArmor Profiles are in enforce or complain mode
AppArmor profiles define what resources applications are able to access. To set all profiles to either <code>enforce</code> or <code>complain</code...Rule Medium Severity -
Ensure AppArmor is enabled in the bootloader configuration
Configure AppArmor to be enabled at boot time and verify that it has not been overwritten by the bootloader boot parameters. Note: This recommenda...Rule Medium Severity -
GRUB2 bootloader configuration
During the boot process, the boot loader is responsible for starting the execution of the kernel and passing options to it. The boot loader allows ...Group -
Non-UEFI GRUB2 bootloader configuration
Non-UEFI GRUB2 bootloader configurationGroup -
Verify /boot/grub/grub.cfg User Ownership
The file <code>/boot/grub/grub.cfg</code> should be owned by the <code>root</code> user to prevent destruction or modification of the file. To pro...Rule Medium Severity -
Verify /boot/grub/grub.cfg Permissions
File permissions for <code>/boot/grub/grub.cfg</code> should be set to 600. To properly set the permissions of <code>/boot/grub/grub.cfg</code>, r...Rule Medium Severity -
Set Boot Loader Password in grub2
The grub2 boot loader should have a superuser account and password protection enabled to protect boot-time settings. <br><br> Since plaintext passw...Rule High Severity -
UEFI GRUB2 bootloader configuration
UEFI GRUB2 bootloader configurationGroup -
Set the UEFI Boot Loader Password
The grub2 boot loader should have a superuser account and password protection enabled to protect boot-time settings. <br><br> Since plaintext passw...Rule High Severity -
Configure Syslog
The syslog service has been the default Unix logging mechanism for many years. It has a number of downsides, including inconsistent log format, lac...Group -
Ensure rsyslog is Installed
Rsyslog is installed by default. Thersyslog
package can be installed with the following command:$ apt-get install rsyslog
Rule Medium Severity -
Enable rsyslog Service
The <code>rsyslog</code> service provides syslog-style logging by default on Ubuntu 20.04. The <code>rsyslog</code> service can be enabled with th...Rule Medium Severity -
Ensure rsyslog Default File Permissions Configured
rsyslog will create logfiles that do not already exist on the system. This settings controls what permissions will be applied to these newly create...Rule Medium Severity -
systemd-journald
systemd-journald is a system service that collects and stores logging data. It creates and maintains structured, indexed journals based on logging ...Group -
Ensure journald is configured to compress large log files
The journald system can compress large log files to avoid fill the system disk.Rule Medium Severity -
Ensure journald is configured to send logs to rsyslog
Data from journald may be stored in volatile memory or persisted locally. Utilities exist to accept remote export of journald logs.Rule Medium Severity -
Ensure journald is configured to write log files to persistent disk
The journald system may store log files in volatile memory or locally on disk. If the logs are only stored in volatile memory they will we lost upo...Rule Medium Severity -
Rsyslog Logs Sent To Remote Host
If system logs are to be useful in detecting malicious activities, it is necessary to send logs to a remote server. An intruder who has compromised...Group -
Ensure Logs Sent To Remote Host
To configure rsyslog to send logs to a remote log server, open <code>/etc/rsyslog.conf</code> and read and understand the last section of the file,...Rule Medium Severity -
Network Configuration and Firewalls
Most systems must be connected to a network of some sort, and this brings with it the substantial risk of network attack. This section discusses th...Group
Node 2
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