Guide to the Secure Configuration of Oracle Linux 7
Rules, Groups, and Values defined within the XCCDF Benchmark
-
Implement Blank Screensaver
To set the screensaver mode in the GNOME3 desktop to a blank screen, add or set <code>picture-uri</code> to <code>string ''</code> in <code>/etc/dconf/db/local.d/00-security-settings</code>. For...Rule Medium Severity -
Disable Full User Name on Splash Shield
By default when the screen is locked, the splash shield will show the user's full name. This should be disabled to prevent casual observers from seeing who has access to the system. This can be dis...Rule Medium Severity -
Ensure Users Cannot Change GNOME3 Screensaver Settings
If not already configured, ensure that users cannot change GNOME3 screensaver lock settings by adding <code>/org/gnome/desktop/screensaver/lock-delay</code> to <code>/etc/dconf/db/local.d/locks/00-...Rule Medium Severity -
Ensure Users Cannot Change GNOME3 Session Idle Settings
If not already configured, ensure that users cannot change GNOME3 session idle settings by adding <code>/org/gnome/desktop/session/idle-delay</code> to <code>/etc/dconf/db/local.d/locks/00-security...Rule Medium Severity -
GNOME System Settings
GNOME provides configuration and functionality to a graphical desktop environment that changes grahical configurations or allow a user to perform actions that users normally would not be able to do...Group -
Group name dedicated to the use of sudo
Specify the name of the group that should own /usr/bin/sudo.Value -
Disable Geolocation in GNOME3
<code>GNOME</code> allows the clock and applications to track and access location information. This setting should be disabled as applications should not track system location. To configure the sys...Rule Medium Severity -
Disable User Administration in GNOME3
By default, <code>GNOME</code> will allow all users to have some administratrion capability. This should be disabled so that non-administrative users are not making configuration changes. To config...Rule High Severity -
SAP Specific Requirement
SAP (Systems, Applications and Products in Data Processing) is enterprise software to manage business operations and customer relations. The following section contains SAP specific requirement that...Group -
Package glibc Installed
The package <code>glibc</code> is installed on Linux by default, but the <code>glibc</code> version might not be sufficient for SAP. Please refer to SAP note of your Linux version for the minimum r...Rule Medium Severity -
Only sidadm and orasid/oracle User Accounts Exist on Operating System
SAP tends to use the server or virtual machine exclusively. There should be only SAP system users <code>sidadm</code> and <code>orasid</code> that exist on the operating system (or virtual machine)...Rule Medium Severity -
Sudo - logfile value
Specify the sudo logfile to use. The default value used here matches the example location from CIS, which uses /var/log/sudo.log.Value -
Ensure All Accounts on the System Have Unique User IDs
Change user IDs (UIDs), or delete accounts, so each has a unique name.Rule Medium Severity -
Ensure sudo Ignores Commands In Current Dir - sudo ignore_dot
The sudo <code>ignore_dot</code> tag, when specified, will ignore the current directory in the PATH environment variable. On Oracle Linux 7, <code>ignore_dot</code> is enabled by default This shoul...Rule Medium Severity -
Ensure Privileged Escalated Commands Cannot Execute Other Commands - sudo NOEXEC
The sudo <code>NOEXEC</code> tag, when specified, prevents user executed commands from executing other commands, like a shell for example. This should be enabled by making sure that the <code>NOEXE...Rule High Severity -
Ensure sudo passwd_timeout is appropriate - sudo passwd_timeout
The sudo <code>passwd_timeout</code> tag sets the amount of time sudo password prompt waits. On Oracle Linux 7, the default <code>passwd_timeout</code> value is 5 minutes. The passwd_timeout shoul...Rule Medium Severity -
Ensure Only Users Logged In To Real tty Can Execute Sudo - sudo requiretty
The sudo <code>requiretty</code> tag, when specified, will only execute sudo commands from users logged in to a real tty. This should be enabled by making sure that the <code>requiretty</code> tag ...Rule Medium Severity -
Ensure Only Users Logged In To Real tty Can Execute Sudo - sudo use_pty
The sudo <code>use_pty</code> tag, when specified, will only execute sudo commands from users logged in to a real tty. This should be enabled by making sure that the <code>use_pty</code> tag exists...Rule Medium Severity -
Ensure Sudo Logfile Exists - sudo logfile
A custom log sudo file can be configured with the 'logfile' tag. This rule configures a sudo custom logfile at the default location suggested by CIS, which uses /var/log/sudo.log.Rule Low Severity -
Ensure a dedicated group owns sudo
Restrict the execution of privilege escalated commands to a dedicated group of users. Ensure the group owner of /usr/bin/sudo is <xccdf-1.2:sub xmlns:xccdf-1.2="http://checklists.nist.gov/xccdf/1.2...Rule Medium Severity
Node 2
The content of the drawer really is up to you. It could have form fields, definition lists, text lists, labels, charts, progress bars, etc. Spacing recommendation is 24px margins. You can put tabs in here, and can also make the drawer scrollable.