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CIS Ubuntu Linux 22.04 LTS v2.0.0 L1 Server

Audit Details

Name: CIS Ubuntu Linux 22.04 LTS v2.0.0 L1 Server

Updated: 11/3/2025

Authority: CIS

Plugin: Unix

Revision: 1.11

Estimated Item Count: 241

File Details

Filename: CIS_Ubuntu_Linux_22.04_LTS_v2.0.0_L1_Server.audit

Size: 1.01 MB

MD5: 188a1b5ded331bd4e53966d333cdb4d1
SHA256: 0ca3419c0f7b9d6e1718f9f413b1fbf06fe60824d083512fca343742b6e58725

Audit Changelog

 
Revision 1.11

Nov 3, 2025

Functional Update
  • 2.1.1 Ensure autofs services are not in use
  • 2.1.10 Ensure nis server services are not in use
  • 2.1.11 Ensure print server services are not in use
  • 2.1.12 Ensure rpcbind services are not in use
  • 2.1.17 Ensure web proxy server services are not in use
  • 2.1.19 Ensure xinetd services are not in use
  • 2.1.5 Ensure dnsmasq services are not in use
  • 2.1.6 Ensure ftp server services are not in use
  • 2.4.2.1 Ensure at is restricted to authorized users
  • 3.1.3 Ensure bluetooth services are not in use
  • 5.1.2 Ensure permissions on SSH private host key files are configured
Informational Update
  • 1.1.1.1 Ensure cramfs kernel module is not available
  • 1.1.1.2 Ensure freevxfs kernel module is not available
  • 1.1.1.3 Ensure hfs kernel module is not available
  • 1.1.1.4 Ensure hfsplus kernel module is not available
  • 1.1.1.5 Ensure jffs2 kernel module is not available
  • 1.1.1.8 Ensure usb-storage kernel module is not available
  • 1.1.2.1.1 Ensure /tmp is a separate partition
  • 1.1.2.1.2 Ensure nodev option set on /tmp partition
  • 1.1.2.1.3 Ensure nosuid option set on /tmp partition
  • 1.1.2.1.4 Ensure noexec option set on /tmp partition
  • 1.1.2.2.1 Ensure /dev/shm is a separate partition
  • 1.1.2.2.2 Ensure nodev option set on /dev/shm partition
  • 1.1.2.2.3 Ensure nosuid option set on /dev/shm partition
  • 1.1.2.2.4 Ensure noexec option set on /dev/shm partition
  • 1.1.2.3.2 Ensure nodev option set on /home partition
  • 1.1.2.3.3 Ensure nosuid option set on /home partition
  • 1.1.2.4.2 Ensure nodev option set on /var partition
  • 1.1.2.4.3 Ensure nosuid option set on /var partition
  • 1.1.2.5.2 Ensure nodev option set on /var/tmp partition
  • 1.1.2.5.3 Ensure nosuid option set on /var/tmp partition
  • 1.1.2.5.4 Ensure noexec option set on /var/tmp partition
  • 1.1.2.6.2 Ensure nodev option set on /var/log partition
  • 1.1.2.6.3 Ensure nosuid option set on /var/log partition
  • 1.1.2.6.4 Ensure noexec option set on /var/log partition
  • 1.1.2.7.2 Ensure nodev option set on /var/log/audit partition
  • 1.1.2.7.3 Ensure nosuid option set on /var/log/audit partition
  • 1.1.2.7.4 Ensure noexec option set on /var/log/audit partition
  • 1.4.1 Ensure bootloader password is set
  • 1.5.1 Ensure address space layout randomization is enabled
  • 1.5.2 Ensure ptrace_scope is restricted
  • 1.5.3 Ensure core dumps are restricted
  • 1.6.1 Ensure message of the day is configured properly
  • 1.6.2 Ensure local login warning banner is configured properly
  • 1.6.3 Ensure remote login warning banner is configured properly
  • 1.7.2 Ensure GDM login banner is configured
  • 1.7.3 Ensure GDM disable-user-list option is enabled
  • 1.7.4 Ensure GDM screen locks when the user is idle
  • 1.7.5 Ensure GDM screen locks cannot be overridden
  • 1.7.6 Ensure GDM automatic mounting of removable media is disabled
  • 1.7.7 Ensure GDM disabling automatic mounting of removable media is not overridden
  • 1.7.8 Ensure GDM autorun-never is enabled
  • 1.7.9 Ensure GDM autorun-never is not overridden
  • 2.1.11 Ensure print server services are not in use
  • 2.1.12 Ensure rpcbind services are not in use
  • 2.1.13 Ensure rsync services are not in use
  • 2.1.15 Ensure snmp services are not in use
  • 2.1.16 Ensure tftp server services are not in use
  • 2.1.18 Ensure web server services are not in use
  • 2.1.19 Ensure xinetd services are not in use
  • 2.1.2 Ensure avahi daemon services are not in use
  • 2.1.3 Ensure dhcp server services are not in use
  • 2.1.8 Ensure message access server services are not in use
  • 2.2.2 Ensure rsh client is not installed
  • 2.3.1.1 Ensure a single time synchronization daemon is in use
  • 2.3.2.1 Ensure systemd-timesyncd configured with authorized timeserver
  • 2.3.3.1 Ensure chrony is configured with authorized timeserver
  • 2.3.3.2 Ensure chrony is running as user _chrony
  • 2.4.1.1 Ensure cron daemon is enabled and active
  • 2.4.1.7 Ensure permissions on /etc/cron.d are configured
  • 2.4.1.8 Ensure crontab is restricted to authorized users
  • 2.4.2.1 Ensure at is restricted to authorized users
  • 3.1.2 Ensure wireless interfaces are disabled
  • 3.1.3 Ensure bluetooth services are not in use
  • 3.3.1 Ensure ip forwarding is disabled
  • 3.3.10 Ensure tcp syn cookies is enabled
  • 3.3.11 Ensure ipv6 router advertisements are not accepted
  • 3.3.2 Ensure packet redirect sending is disabled
  • 3.3.3 Ensure bogus icmp responses are ignored
  • 3.3.4 Ensure broadcast icmp requests are ignored
  • 3.3.5 Ensure icmp redirects are not accepted
  • 3.3.6 Ensure secure icmp redirects are not accepted
  • 3.3.7 Ensure reverse path filtering is enabled
  • 3.3.8 Ensure source routed packets are not accepted
  • 3.3.9 Ensure suspicious packets are logged
  • 4.1.1 Ensure ufw is installed
  • 4.1.2 Ensure iptables-persistent is not installed with ufw
  • 4.1.3 Ensure ufw service is enabled
  • 4.1.4 Ensure ufw loopback traffic is configured
  • 4.1.5 Ensure ufw outbound connections are configured
  • 4.1.6 Ensure ufw firewall rules exist for all open ports
  • 4.1.7 Ensure ufw default deny firewall policy
  • 4.2.1 Ensure nftables is installed
  • 4.2.10 Ensure nftables rules are permanent
  • 4.2.2 Ensure ufw is uninstalled or disabled with nftables
  • 4.2.3 Ensure iptables are flushed with nftables
  • 4.2.4 Ensure a nftables table exists
  • 4.2.5 Ensure nftables base chains exist
  • 4.2.6 Ensure nftables loopback traffic is configured
  • 4.2.7 Ensure nftables outbound and established connections are configured
  • 4.2.8 Ensure nftables default deny firewall policy
  • 4.2.9 Ensure nftables service is enabled
  • 4.3.1.1 Ensure iptables packages are installed
  • 4.3.1.2 Ensure nftables is not installed with iptables
  • 4.3.1.3 Ensure ufw is uninstalled or disabled with iptables
  • 4.3.2.1 Ensure iptables default deny firewall policy
  • 4.3.2.2 Ensure iptables loopback traffic is configured
  • 4.3.2.3 Ensure iptables outbound and established connections are configured
  • 4.3.2.4 Ensure iptables firewall rules exist for all open ports
  • 4.3.3.1 Ensure ip6tables default deny firewall policy
  • 4.3.3.2 Ensure ip6tables loopback traffic is configured
  • 4.3.3.3 Ensure ip6tables outbound and established connections are configured
  • 4.3.3.4 Ensure ip6tables firewall rules exist for all open ports
  • 5.1.1 Ensure permissions on /etc/ssh/sshd_config are configured
  • 5.1.10 Ensure sshd HostbasedAuthentication is disabled
  • 5.1.11 Ensure sshd IgnoreRhosts is enabled
  • 5.1.15 Ensure sshd MACs are configured
  • 5.1.2 Ensure permissions on SSH private host key files are configured
  • 5.1.20 Ensure sshd PermitRootLogin is disabled
  • 5.1.22 Ensure sshd UsePAM is enabled
  • 5.1.3 Ensure permissions on SSH public host key files are configured
  • 5.1.4 Ensure sshd access is configured
  • 5.1.6 Ensure sshd Ciphers are configured
  • 5.1.7 Ensure sshd ClientAliveInterval and ClientAliveCountMax are configured
  • 5.2.1 Ensure sudo is installed
  • 5.2.2 Ensure sudo commands use pty
  • 5.2.3 Ensure sudo log file exists
  • 5.2.6 Ensure sudo authentication timeout is configured correctly
  • 5.2.7 Ensure access to the su command is restricted
  • 5.3.2.1 Ensure pam_unix module is enabled
  • 5.3.2.2 Ensure pam_faillock module is enabled
  • 5.3.2.3 Ensure pam_pwquality module is enabled
  • 5.3.2.4 Ensure pam_pwhistory module is enabled
  • 5.3.3.1.1 Ensure password failed attempts lockout is configured
  • 5.3.3.1.2 Ensure password unlock time is configured
  • 5.3.3.2.1 Ensure password number of changed characters is configured
  • 5.3.3.2.2 Ensure minimum password length is configured
  • 5.3.3.2.3 Ensure password complexity is configured
  • 5.3.3.2.4 Ensure password same consecutive characters is configured
  • 5.3.3.2.5 Ensure password maximum sequential characters is configured
  • 5.3.3.2.6 Ensure password dictionary check is enabled
  • 5.3.3.2.7 Ensure password quality checking is enforced
  • 5.3.3.2.8 Ensure password quality is enforced for the root user
  • 5.3.3.3.1 Ensure password history remember is configured
  • 5.3.3.3.2 Ensure password history is enforced for the root user
  • 5.3.3.4.1 Ensure pam_unix does not include nullok
  • 5.3.3.4.2 Ensure pam_unix does not include remember
  • 5.3.3.4.3 Ensure pam_unix includes a strong password hashing algorithm
  • 5.3.3.4.4 Ensure pam_unix includes use_authtok
  • 5.4.1.1 Ensure password expiration is configured
  • 5.4.1.3 Ensure password expiration warning days is configured
  • 5.4.1.4 Ensure strong password hashing algorithm is configured
  • 5.4.1.5 Ensure inactive password lock is configured
  • 5.4.2.5 Ensure root path integrity
  • 5.4.2.6 Ensure root user umask is configured
  • 5.4.2.7 Ensure system accounts do not have a valid login shell
  • 5.4.2.8 Ensure accounts without a valid login shell are locked
  • 5.4.3.2 Ensure default user shell timeout is configured
  • 5.4.3.3 Ensure default user umask is configured
  • 6.2.1.1.3 Ensure journald log file rotation is configured
  • 6.2.1.1.4 Ensure journald ForwardToSyslog is disabled
  • 6.2.1.1.5 Ensure journald Storage is configured
  • 6.2.1.1.6 Ensure journald Compress is configured
  • 6.2.1.2.2 Ensure systemd-journal-remote authentication is configured
  • 6.2.1.2.4 Ensure systemd-journal-remote service is not in use
  • 6.2.2.1 Ensure access to all logfiles has been configured
  • 7.1.11 Ensure world writable files and directories are secured
  • 7.2.1 Ensure accounts in /etc/passwd use shadowed passwords
  • 7.2.10 Ensure local interactive user dot files access is configured
  • 7.2.3 Ensure all groups in /etc/passwd exist in /etc/group
  • 7.2.4 Ensure shadow group is empty
  • 7.2.7 Ensure no duplicate user names exist
  • 7.2.8 Ensure no duplicate group names exist
  • 7.2.9 Ensure local interactive user home directories are configured
Miscellaneous
  • Metadata updated.
  • Variables updated.
Revision 1.10

Jul 11, 2025

Functional Update
  • 5.1.2 Ensure permissions on SSH private host key files are configured
Revision 1.9

Jun 27, 2025

Functional Update
  • 2.1.18 Ensure web server services are not in use
Revision 1.8

Jun 16, 2025

Functional Update
  • 7.1.5 Ensure permissions on /etc/shadow are configured
Revision 1.7

Mar 31, 2025

Functional Update
  • 7.1.6 Ensure permissions on /etc/shadow- are configured
Revision 1.6

Mar 22, 2025

Functional Update
  • 7.1.12 Ensure no files or directories without an owner and a group exist
Miscellaneous
  • References updated.
Revision 1.5

Jan 6, 2025

Informational Update
  • 1.1.1.1 Ensure cramfs kernel module is not available
  • 1.1.1.2 Ensure freevxfs kernel module is not available
  • 1.1.1.3 Ensure hfs kernel module is not available
  • 1.1.1.4 Ensure hfsplus kernel module is not available
  • 1.1.1.5 Ensure jffs2 kernel module is not available
  • 1.1.1.8 Ensure usb-storage kernel module is not available
  • 1.7.2 Ensure GDM login banner is configured
  • 1.7.6 Ensure GDM automatic mounting of removable media is disabled
  • 1.7.8 Ensure GDM autorun-never is enabled
  • 2.3.2.1 Ensure systemd-timesyncd configured with authorized timeserver
  • 2.4.1.8 Ensure crontab is restricted to authorized users
  • 2.4.2.1 Ensure at is restricted to authorized users
  • 3.1.2 Ensure wireless interfaces are disabled
  • 5.1.2 Ensure permissions on SSH private host key files are configured
  • 5.1.3 Ensure permissions on SSH public host key files are configured
  • 5.3.3.2.1 Ensure password number of changed characters is configured
  • 5.3.3.2.2 Ensure minimum password length is configured
  • 5.3.3.2.3 Ensure password complexity is configured
  • 5.3.3.2.4 Ensure password same consecutive characters is configured
  • 5.3.3.2.5 Ensure password maximum sequential characters is configured
  • 5.3.3.2.6 Ensure password dictionary check is enabled
  • 5.3.3.2.7 Ensure password quality checking is enforced
  • 5.3.3.2.8 Ensure password quality is enforced for the root user
  • 5.4.2.7 Ensure system accounts do not have a valid login shell
  • 5.4.2.8 Ensure accounts without a valid login shell are locked
  • 5.4.3.3 Ensure default user umask is configured
  • 6.2.1.1.4 Ensure journald ForwardToSyslog is disabled
  • 6.2.1.1.5 Ensure journald Storage is configured
  • 6.2.1.1.6 Ensure journald Compress is configured
  • 6.2.2.1 Ensure access to all logfiles has been configured
  • 7.1.10 Ensure permissions on /etc/security/opasswd are configured
  • 7.1.11 Ensure world writable files and directories are secured
  • 7.2.10 Ensure local interactive user dot files access is configured
  • 7.2.9 Ensure local interactive user home directories are configured
Miscellaneous
  • Metadata updated.
Revision 1.4

Dec 27, 2024

Functional Update
  • 1.5.5 Ensure Automatic Error Reporting is not enabled
Revision 1.3

Dec 20, 2024

Functional Update
  • 5.3.1.1 Ensure latest version of pam is installed
  • 5.3.1.2 Ensure libpam-modules is installed
Informational Update
  • 5.3.1.1 Ensure latest version of pam is installed
  • 5.3.1.2 Ensure libpam-modules is installed
Revision 1.2

Nov 6, 2024

Functional Update
  • 7.1.11 Ensure world writable files and directories are secured
  • 7.1.12 Ensure no files or directories without an owner and a group exist
  • 7.1.13 Ensure SUID and SGID files are reviewed
Miscellaneous
  • References updated.