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ANSSI-BP-028 (enhanced)

Rules and Groups employed by this XCCDF Profile

  • Uninstall talk-server Package

    The talk-server package can be removed with the following command: 
     $ sudo yum erase talk-server
    Rule Medium Severity
    Show

  • Uninstall talk Package

    The <code>talk</code> package contains the client program for the Internet talk protocol, which allows the user to chat with other users on different systems. Talk is a communication program which ...
    Rule Medium Severity
    Show

  • Telnet

    The telnet protocol does not provide confidentiality or integrity for information transmitted on the network. This includes authentication information such as passwords. Organizations which use tel...
    Group
    Show

  • Uninstall telnet-server Package

    The telnet-server package can be removed with the following command: 
    $ sudo yum erase telnet-server
    Rule High Severity
    Show

  • Remove telnet Clients

    The telnet client allows users to start connections to other systems via the telnet protocol.
    Rule Low Severity
    Show

  • TFTP Server

    TFTP is a lightweight version of the FTP protocol which has traditionally been used to configure networking equipment. However, TFTP provides little security, and modern versions of networking oper...
    Group
    Show

  • Uninstall tftp-server Package

    The tftp-server package can be removed with the following command: 
     $ sudo yum erase tftp-server
    Rule High Severity
    Show

  • Remove tftp Daemon

    Trivial File Transfer Protocol (TFTP) is a simple file transfer protocol, typically used to automatically transfer configuration or boot files between systems. TFTP does not support authentication ...
    Rule Low Severity
    Show

  • SSH Server

    The SSH protocol is recommended for remote login and remote file transfer. SSH provides confidentiality and integrity for data exchanged between two systems, as well as server authentication, throu...
    Group
    Show

  • Verify Group Who Owns SSH Server config file

    To properly set the group owner of /etc/ssh/sshd_config, run the command: 
    $ sudo chgrp root /etc/ssh/sshd_config
    Rule Medium Severity
    Show

  • Verify Group Ownership on SSH Server Private *_key Key Files

    SSH server private keys, files that match the /etc/ssh/*_key glob, must be group-owned by ssh_keys group.
    Rule Medium Severity
    Show

  • Verify Group Ownership on SSH Server Public *.pub Key Files

    SSH server public keys, files that match the /etc/ssh/*.pub glob, must be group-owned by root group.
    Rule Medium Severity
    Show

  • Verify Owner on SSH Server config file

    To properly set the owner of /etc/ssh/sshd_config, run the command: 
    $ sudo chown root /etc/ssh/sshd_config
    Rule Medium Severity
    Show

  • Verify Ownership on SSH Server Private *_key Key Files

    SSH server private keys, files that match the /etc/ssh/*_key glob, must be owned by root user.
    Rule Medium Severity
    Show

  • Verify Ownership on SSH Server Public *.pub Key Files

    SSH server public keys, files that match the /etc/ssh/*.pub glob, must be owned by root user.
    Rule Medium Severity
    Show

  • Verify Permissions on SSH Server config file

    To properly set the permissions of /etc/ssh/sshd_config, run the command: 
    $ sudo chmod 0600 /etc/ssh/sshd_config
    Rule Medium Severity
    Show

  • Verify Permissions on SSH Server Private *_key Key Files

    SSH server private keys - files that match the <code>/etc/ssh/*_key</code> glob, have to have restricted permissions. If those files are owned by the <code>root</code> user and the <code>root</code...
    Rule Medium Severity
    Show

  • Verify Permissions on SSH Server Public *.pub Key Files

    To properly set the permissions of /etc/ssh/*.pub, run the command: 
    $ sudo chmod 0644 /etc/ssh/*.pub
    Rule Medium Severity
    Show

  • Configure OpenSSH Server if Necessary

    If the system needs to act as an SSH server, then certain changes should be made to the OpenSSH daemon configuration file <code>/etc/ssh/sshd_config</code>. The following recommendations can be app...
    Group
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  • Disable SSH Root Login

    The root user should never be allowed to login to a system directly over a network. To disable root login via SSH, add or correct the following line in <code>/etc/ssh/sshd_config</code>: <pre>Pe...
    Rule Medium Severity
    Show

  • System Security Services Daemon

    The System Security Services Daemon (SSSD) is a system daemon that provides access to different identity and authentication providers such as Red Hat's IdM, Microsoft's AD, openLDAP, MIT Kerberos, ...
    Group
    Show

  • System Security Services Daemon (SSSD) - LDAP

    The System Security Services Daemon (SSSD) is a system daemon that provides access to different identity and authentication providers such as Red Hat's IdM, Microsoft's AD, openLDAP, MIT Kerberos, ...
    Group
    Show

  • Record Attempts to perform maintenance activities

    The Oracle Linux 9 operating system must generate audit records for privileged activities, nonlocal maintenance, diagnostic sessions and other system-level access. Verify the operating system audi...
    Rule Medium Severity
    Show

  • Configure Microarchitectural Data Sampling mitigation

    Microarchitectural Data Sampling (MDS) is a hardware vulnerability which allows unprivileged speculative access to data which is available in various CPU internal buffers. When performing store, l...
    Rule Medium Severity
    Show

  • Enable Kernel Parameter to Enforce DAC on FIFOs

    To set the runtime status of the <code>fs.protected_fifos</code> kernel parameter, run the following command: <pre>$ sudo sysctl -w fs.protected_fifos=2</pre> To make sure that the setting is persi...
    Rule Medium Severity
    Show

  • Enable Kernel Parameter to Enforce DAC on Regular files

    To set the runtime status of the <code>fs.protected_regular</code> kernel parameter, run the following command: <pre>$ sudo sysctl -w fs.protected_regular=2</pre> To make sure that the setting is p...
    Rule Medium Severity
    Show

  • Ensure tmp.mount Unit Is Enabled

    The <code>/tmp</code> directory is a world-writable directory used for temporary file storage. This directory is managed by <code>systemd-tmpfiles</code>. Ensure that the <code>tmp.mount</code> sys...
    Rule Low Severity
    Show

  • Verify Group Who Owns /etc/sudoers.d Directory

    To properly set the group owner of /etc/sudoers.d, run the command: 
    $ sudo chgrp root /etc/sudoers.d
    Rule Medium Severity
    Show

  • Verify User Who Owns /etc/sudoers.d Directory

    To properly set the owner of /etc/sudoers.d, run the command: 
    $ sudo chown root /etc/sudoers.d
    Rule Medium Severity
    Show

  • Verify Permissions On /etc/sudoers.d Directory

    To properly set the permissions of /etc/sudoers.d, run the command: 
    $ sudo chmod 0750 /etc/sudoers.d
    Rule Medium Severity
    Show

  • Verify Group Who Owns /etc/sudoers File

    To properly set the group owner of /etc/sudoers, run the command: 
    $ sudo chgrp root /etc/sudoers
    Rule Medium Severity
    Show

  • Verify User Who Owns /etc/sudoers File

    To properly set the owner of /etc/sudoers, run the command: 
    $ sudo chown root /etc/sudoers
    Rule Medium Severity
    Show

  • Verify Permissions On /etc/sudoers File

    To properly set the permissions of /etc/sudoers, run the command: 
    $ sudo chmod 0440 /etc/sudoers
    Rule Medium Severity
    Show

  • Ensure That the sudo Binary Has the Correct Permissions

    To properly set the permissions of /usr/bin/sudo, run the command: 
    $ sudo chmod 4111 /usr/bin/sudo
    Rule Medium Severity
    Show

  • Configure Logind to terminate idle sessions after certain time of inactivity

    To configure <code>logind</code> service to terminate inactive user sessions after <xccdf-1.2:sub idref="xccdf_org.ssgproject.content_value_var_logind_session_timeout" use="legacy"></xccdf-1.2:sub>...
    Rule Medium Severity
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  • Set Root Account Password Maximum Age

    Configure the root account to enforce a <xccdf-1.2:sub idref="xccdf_org.ssgproject.content_value_var_accounts_maximum_age_root" use="legacy"></xccdf-1.2:sub>-day maximum password lifetime restricti...
    Rule Medium Severity
    Show

  • User Initialization Files Must Be Group-Owned By The Primary Group

    Change the group owner of interactive users files to the group found in <pre>/etc/passwd</pre> for the user. To change the group owner of a local interactive user home directory, use the following ...
    Rule Medium Severity
    Show

  • User Initialization Files Must Be Owned By the Primary User

    Set the owner of the user initialization files for interactive users to the primary owner with the following command: <pre>$ sudo chown <i>USER</i> /home/<i>USER</i>/.*</pre> This rule ensures eve...
    Rule Medium Severity
    Show

  • All User Files and Directories In The Home Directory Must Be Group-Owned By The Primary Group

    Change the group of a local interactive users files and directories to a group that the interactive user is a member of. To change the group owner of a local interactive users files and directories...
    Rule Medium Severity
    Show

  • All User Files and Directories In The Home Directory Must Have a Valid Owner

    Either remove all files and directories from the system that do not have a valid user, or assign a valid user to all unowned files and directories. To assign a valid owner to a local interactive us...
    Rule Medium Severity
    Show

  • All User Files and Directories In The Home Directory Must Have Mode 0750 Or Less Permissive

    Set the mode on files and directories in the local interactive user home directory with the following command: <pre>$ sudo chmod 0750 /home/<i>USER</i>/<i>FILE_DIR</i> </pre> Files that beg...
    Rule Medium Severity
    Show

  • Ensure AppArmor is installed

    AppArmor provide Mandatory Access Controls.
    Rule Medium Severity
    Show

  • Install the pam_apparmor Package

    The pam_apparmor package can be installed with the following command: 
    $ sudo yum install pam_apparmor
    Rule Medium Severity
    Show

  • Enforce all AppArmor Profiles

    AppArmor profiles define what resources applications are able to access. To set all profiles to enforce mode run the following command: <pre>$ sudo aa-enforce /etc/apparmor.d/*</pre> To list unconf...
    Rule Medium Severity
    Show

  • Ensure AppArmor is Active and Configured

    Verify that the Apparmor tool is configured to control whitelisted applications and user home directory access control.<br> <br> The <code>apparmor</code> service can be enabled with the fo...
    Rule Medium Severity
    Show

  • 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 recommendation is designed around the grub bootloader, if LI...
    Rule Medium Severity
    Show

  • Verify /boot/grub2/grub.cfg Permissions

    File permissions for <code>/boot/grub2/grub.cfg</code> should be set to 600. To properly set the permissions of <code>/boot/grub2/grub.cfg</code>, run the command: <pre>$ sudo chmod 600 /boot/grub...
    Rule Medium Severity
    Show

  • Verify /boot/grub2/user.cfg Permissions

    File permissions for <code>/boot/grub2/user.cfg</code> should be set to 600. To properly set the permissions of <code>/boot/grub2/user.cfg</code>, run the command: <pre>$ sudo chmod 600 /boot/grub...
    Rule Medium Severity
    Show

  • Verify the UEFI Boot Loader grub.cfg Group Ownership

    The file <code>/boot/grub2/grub.cfg</code> should be group-owned by the <code>root</code> group to prevent destruction or modification of the file. To properly set the group owner of <code>/boot/g...
    Rule Medium Severity
    Show

  • Verify the UEFI Boot Loader grub.cfg User Ownership

    The file <code>/boot/grub2/grub.cfg</code> should be owned by the <code>root</code> user to prevent destruction or modification of the file. To properly set the owner of <code>/boot/grub2/grub.cfg...
    Rule Medium Severity
    Show

Node 2

siemur/test-space

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.

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