DRAFT - ANSSI-BP-028 (intermediary)
Rules and Groups employed by this XCCDF Profile
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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 -
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 -
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 -
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 -
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 -
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 -
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 -
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 -
Ensure PAM Enforces Password Requirements - Minimum Different Categories
The pam_pwquality module's <code>minclass</code> parameter controls requirements for usage of different character classes, or types, of character that must exist in a password before it is consider...Rule Medium Severity -
Ensure PAM Enforces Password Requirements - Authentication Retry Prompts Permitted Per-Session
To configure the number of retry prompts that are permitted per-session: Edit the <code>pam_pwquality.so</code> statement in <code>/etc/pam.d/system-auth</code> to show <code>retry=<xccdf-1.2:s...Rule Medium Severity -
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 -
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 -
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 -
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 -
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 -
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 -
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 -
Ensure All User Initialization Files Have Mode 0740 Or Less Permissive
Set the mode of the user initialization files to0740
with the following command:$ sudo chmod 0740 /home/USER/.INIT_FILE
Rule Medium Severity -
Verify Group Who Owns /etc/ipsec.d Directory
To properly set the group owner of/etc/ipsec.d
, run the command:$ sudo chgrp root /etc/ipsec.d
Rule Medium Severity -
Verify User Who Owns /etc/ipsec.d Directory
To properly set the owner of/etc/ipsec.d
, run the command:$ sudo chown root /etc/ipsec.d
Rule Medium Severity -
Verify Permissions On /etc/ipsec.d Directory
To properly set the permissions of/etc/ipsec.d
, run the command:$ sudo chmod 0700 /etc/ipsec.d
Rule Medium Severity -
Verify Group Who Owns /etc/ipsec.conf File
To properly set the group owner of/etc/ipsec.conf
, run the command:$ sudo chgrp root /etc/ipsec.conf
Rule Medium Severity -
Verify Group Who Owns /etc/ipsec.secrets File
To properly set the group owner of/etc/ipsec.secrets
, run the command:$ sudo chgrp root /etc/ipsec.secrets
Rule Medium Severity -
Verify User Who Owns /etc/ipsec.conf File
To properly set the owner of/etc/ipsec.conf
, run the command:$ sudo chown root /etc/ipsec.conf
Rule Medium Severity -
Verify User Who Owns /etc/ipsec.secrets File
To properly set the owner of/etc/ipsec.secrets
, run the command:$ sudo chown root /etc/ipsec.secrets
Rule Medium Severity -
Verify Permissions On /etc/ipsec.conf File
To properly set the permissions of/etc/ipsec.conf
, run the command:$ sudo chmod 0644 /etc/ipsec.conf
Rule Medium Severity -
Verify Permissions On /etc/ipsec.secrets File
To properly set the permissions of/etc/ipsec.secrets
, run the command:$ sudo chmod 0644 /etc/ipsec.secrets
Rule Medium Severity -
Verify Group Who Owns /etc/iptables Directory
To properly set the group owner of/etc/iptables
, run the command:$ sudo chgrp root /etc/iptables
Rule Medium Severity -
Verify User Who Owns /etc/iptables Directory
To properly set the owner of/etc/iptables
, run the command:$ sudo chown root /etc/iptables
Rule Medium Severity -
Verify Permissions On /etc/iptables Directory
To properly set the permissions of/etc/iptables
, run the command:$ sudo chmod 0700 /etc/iptables
Rule Medium Severity -
Verify Group Who Owns /etc/nftables Directory
To properly set the group owner of/etc/nftables
, run the command:$ sudo chgrp root /etc/nftables
Rule Medium Severity -
Verify User Who Owns /etc/nftables Directory
To properly set the owner of/etc/nftables
, run the command:$ sudo chown root /etc/nftables
Rule Medium Severity -
Verify Permissions On /etc/nftables Directory
To properly set the permissions of/etc/nftables
, run the command:$ sudo chmod 0700 /etc/nftables
Rule Medium Severity -
Verify that system commands directories have root as a group owner
System commands are stored in the following directories: by default: <pre>/bin /sbin /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin </pre> All these directories should have <code>root</code...Rule Medium Severity -
Verify that system commands directories have root ownership
System commands are stored in the following directories by default: <pre>/bin /sbin /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin </pre> All these directories should be owned by the <code>...Rule Medium Severity -
Verify Group Who Owns /etc/crypttab File
To properly set the group owner of/etc/crypttab
, run the command:$ sudo chgrp root /etc/crypttab
Rule Medium Severity -
Verify User Who Owns /etc/crypttab File
To properly set the owner of/etc/crypttab
, run the command:$ sudo chown root /etc/crypttab
Rule Medium Severity -
Verify Permissions On /etc/crypttab File
To properly set the permissions of/etc/crypttab
, run the command:$ sudo chmod 0600 /etc/crypttab
Rule Medium Severity -
Verify Group Who Owns /etc/shells File
To properly set the group owner of/etc/shells
, run the command:$ sudo chgrp root /etc/shells
Rule Medium Severity -
Verify Who Owns /etc/shells File
To properly set the owner of/etc/shells
, run the command:$ sudo chown root /etc/shells
Rule Medium Severity -
Verify Permissions on /etc/shells File
To properly set the permissions of/etc/shells
, run the command:$ sudo chmod 0644 /etc/shells
Rule Medium Severity -
Verify Group Who Owns /etc/sysctl.d Directory
To properly set the group owner of/etc/sysctl.d
, run the command:$ sudo chgrp root /etc/sysctl.d
Rule Medium Severity -
Verify User Who Owns /etc/sysctl.d Directory
To properly set the owner of/etc/sysctl.d
, run the command:$ sudo chown root /etc/sysctl.d
Rule Medium Severity -
Verify Permissions On /etc/sysctl.d Directory
To properly set the permissions of/etc/sysctl.d
, run the command:$ sudo chmod 0755 /etc/sysctl.d
Rule Medium Severity -
Verify that system commands files are group owned by root or a system account
System commands files are stored in the following directories by default: <pre>/bin /sbin /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin </pre> All files in these directories should be owned by ...Rule Medium Severity -
Verify Group Who Owns /etc/selinux Directory
To properly set the group owner of/etc/selinux
, run the command:$ sudo chgrp root /etc/selinux
Rule Medium Severity -
Verify User Who Owns /etc/selinux Directory
To properly set the owner of/etc/selinux
, run the command:$ sudo chown root /etc/selinux
Rule Medium Severity -
Verify Permissions On /etc/selinux Directory
To properly set the permissions of/etc/selinux
, run the command:$ sudo chmod 0755 /etc/selinux
Rule Medium Severity -
Verify Group Who Owns /etc/sestatus.conf File
To properly set the group owner of/etc/sestatus.conf
, run the command:$ sudo chgrp root /etc/sestatus.conf
Rule Medium Severity -
Verify User Who Owns /etc/sestatus.conf File
To properly set the owner of/etc/sestatus.conf
, run the command:$ sudo chown root /etc/sestatus.conf
Rule Medium Severity
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