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CIS Ubuntu Linux 18.04 LTS Workstation L1 v2.0.1

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Audit Details

Name: CIS Ubuntu Linux 18.04 LTS Workstation L1 v2.0.1

Updated: 5/5/2021

Authority: CIS

Plugin: Unix

Revision: 1.15

Estimated Item Count: 327

Audit Changelog

 
Revision 1.15

May 5, 2021

Miscellaneous
  • Audit deprecated.
  • Metadata updated.
Revision 1.14

Feb 11, 2021

Functional Update
  • 3.5.4.1.1 Ensure default deny firewall policy - 'Chain FORWARD'
  • 3.5.4.1.1 Ensure default deny firewall policy - 'Chain INPUT'
  • 3.5.4.1.1 Ensure default deny firewall policy - 'Chain OUTPUT'
  • 3.5.4.2.1 Ensure IPv6 default deny firewall policy - 'Chain FORWARD'
  • 3.5.4.2.1 Ensure IPv6 default deny firewall policy - 'Chain INPUT'
  • 3.5.4.2.1 Ensure IPv6 default deny firewall policy - 'Chain OUTPUT'
  • 5.2.13 Ensure only strong Ciphers are used - approved ciphers
  • 5.2.13 Ensure only strong Ciphers are used - weak ciphers
  • 5.2.14 Ensure only strong MAC algorithms are used - approved MACs
  • 5.2.14 Ensure only strong MAC algorithms are used - weak MACs
  • 5.2.15 Ensure only strong Key Exchange algorithms are used - approved algorithms
  • 5.2.15 Ensure only strong Key Exchange algorithms are used - weak algorithms
Miscellaneous
  • Metadata updated.
  • Platform check updated.
  • References updated.
Added
  • 1.8.1.1 Ensure message of the day is configured properly - banner
  • 1.8.1.1 Ensure message of the day is configured properly - platform flags
  • 1.8.1.2 Ensure local login warning banner is configured properly - banner
  • 1.8.1.2 Ensure local login warning banner is configured properly - platform flags
  • 1.8.1.3 Ensure remote login warning banner is configured properly - banner
  • 1.8.1.3 Ensure remote login warning banner is configured properly - platform flags
Removed
  • 1.8.1.1 Ensure message of the day is configured properly
  • 1.8.1.2 Ensure local login warning banner is configured properly
  • 1.8.1.3 Ensure remote login warning banner is configured properly
Revision 1.13

Oct 14, 2020

Functional Update
  • 4.2.3 Ensure permissions on all logfiles are configured
Revision 1.12

Oct 5, 2020

Functional Update
  • 1.1.10 Ensure noexec option set on /var/tmp partition
  • 1.1.14 Ensure nodev option set on /home partition
  • 1.1.15 Ensure nodev option set on /dev/shm partition
  • 1.1.16 Ensure nosuid option set on /dev/shm partition
  • 1.1.17 Ensure noexec option set on /dev/shm partition
  • 1.1.18 Ensure nodev option set on removable media partitions
  • 1.1.19 Ensure nosuid option set on removable media partitions
  • 1.1.20 Ensure noexec option set on removable media partitions
  • 1.1.3 Ensure nodev option set on /tmp partition
  • 1.1.4 Ensure nosuid option set on /tmp partition
  • 1.1.5 Ensure noexec option set on /tmp partition
  • 1.1.8 Ensure nodev option set on /var/tmp partition
  • 1.1.9 Ensure nosuid option set on /var/tmp partition
  • 1.4.2 Ensure filesystem integrity is regularly checked
  • 1.6.1 Ensure XD/NX support is enabled
  • 1.6.4 Ensure core dumps are restricted - processsizemax
  • 1.6.4 Ensure core dumps are restricted - storage
  • 1.8.2 Ensure GDM login banner is configured - banner-message-enable
  • 1.8.2 Ensure GDM login banner is configured - banner-message-text
  • 2.2.1.1 Ensure time synchronization is in use
  • 2.2.1.2 Ensure systemd-timesyncd is configured - FallbackNTP
  • 2.2.1.2 Ensure systemd-timesyncd is configured - NTP
  • 2.2.1.2 Ensure systemd-timesyncd is configured - RootDistanceMaxSec
  • 2.2.1.3 Ensure chrony is configured - server
  • 2.2.1.3 Ensure chrony is configured - uid
  • 2.2.1.4 Ensure ntp is configured - restrict -4
  • 2.2.1.4 Ensure ntp is configured - restrict -6
  • 2.2.1.4 Ensure ntp is configured - server
  • 2.2.1.4 Ensure ntp is configured - user
  • 3.5.1.1 Ensure a Firewall package is installed
  • 3.5.2.1 Ensure ufw service is enabled - systemctl
  • 3.5.2.1 Ensure ufw service is enabled - ufw
  • 3.5.2.2 Ensure default deny firewall policy
  • 3.5.2.3 Ensure loopback traffic is configured - v4
  • 3.5.2.3 Ensure loopback traffic is configured - v6
  • 3.5.2.4 Ensure outbound connections are configured
  • 3.5.2.5 Ensure firewall rules exist for all open ports
  • 3.5.3.1 Ensure iptables are flushed - v4
  • 3.5.3.1 Ensure iptables are flushed - v6
  • 3.5.3.2 Ensure a table exists
  • 3.5.3.3 Ensure base chains exist - forward
  • 3.5.3.3 Ensure base chains exist - input
  • 3.5.3.3 Ensure base chains exist - output
  • 3.5.3.4 Ensure loopback traffic is configured - lo
  • 3.5.3.4 Ensure loopback traffic is configured - v4
  • 3.5.3.4 Ensure loopback traffic is configured - v6
  • 3.5.3.5 Ensure outbound and established connections are configured
  • 3.5.3.6 Ensure default deny firewall policy - forward
  • 3.5.3.6 Ensure default deny firewall policy - input
  • 3.5.3.6 Ensure default deny firewall policy - output
  • 3.5.3.7 Ensure nftables service is enabled
  • 3.5.3.8 Ensure nftables rules are permanent
  • 3.5.4.1.1 Ensure default deny firewall policy - 'Chain FORWARD'
  • 3.5.4.1.1 Ensure default deny firewall policy - 'Chain INPUT'
  • 3.5.4.1.1 Ensure default deny firewall policy - 'Chain OUTPUT'
  • 3.5.4.1.2 Ensure loopback traffic is configured
  • 3.5.4.1.3 Ensure outbound and established connections are configured
  • 3.5.4.1.4 Ensure firewall rules exist for all open ports
  • 3.5.4.2.1 Ensure IPv6 default deny firewall policy - 'Chain FORWARD'
  • 3.5.4.2.1 Ensure IPv6 default deny firewall policy - 'Chain INPUT'
  • 3.5.4.2.1 Ensure IPv6 default deny firewall policy - 'Chain OUTPUT'
  • 3.5.4.2.2 Ensure IPv6 loopback traffic is configured
  • 3.5.4.2.3 Ensure IPv6 outbound and established connections are configured
  • 3.5.4.2.4 Ensure IPv6 firewall rules exist for all open ports
  • 4.2.1.1 Ensure rsyslog is installed
  • 4.2.1.2 Ensure rsyslog Service is enabled
  • 4.2.1.3 Ensure logging is configured - '*.*;mail.none;news.none -/var/log/messages'
  • 4.2.1.3 Ensure logging is configured - '*.=warning;*.=err -/var/log/warn'
  • 4.2.1.3 Ensure logging is configured - '*.crit /var/log/warn'
  • 4.2.1.3 Ensure logging is configured - '*.emerg :omusrmsg:*'
  • 4.2.1.3 Ensure logging is configured - 'auth,authpriv.* /var/log/auth.log'
  • 4.2.1.3 Ensure logging is configured - 'local0,local1.* -/var/log/localmessages'
  • 4.2.1.3 Ensure logging is configured - 'local2,local3.* -/var/log/localmessages'
  • 4.2.1.3 Ensure logging is configured - 'local4,local5.* -/var/log/localmessages'
  • 4.2.1.3 Ensure logging is configured - 'local6,local7.* -/var/log/localmessages'
  • 4.2.1.3 Ensure logging is configured - 'mail.* -/var/log/mail'
  • 4.2.1.3 Ensure logging is configured - 'mail.err /var/log/mail.err'
  • 4.2.1.3 Ensure logging is configured - 'mail.info -/var/log/mail.info'
  • 4.2.1.3 Ensure logging is configured - 'mail.warning -/var/log/mail.warn'
  • 4.2.1.3 Ensure logging is configured - 'news.crit -/var/log/news/news.crit'
  • 4.2.1.3 Ensure logging is configured - 'news.err -/var/log/news/news.err'
  • 4.2.1.3 Ensure logging is configured - 'news.notice -/var/log/news/news.notice'
  • 4.2.1.3 ensure logging is configured - '*.*;mail.none;news.none -/var/log/messages'
  • 4.2.1.3 ensure logging is configured - '*.=warning;*.=err -/var/log/warn'
  • 4.2.1.3 ensure logging is configured - '*.crit /var/log/warn'
  • 4.2.1.3 ensure logging is configured - '*.emerg :omusrmsg:*'
  • 4.2.1.3 ensure logging is configured - 'local0,local1.* -/var/log/localmessages'
  • 4.2.1.3 ensure logging is configured - 'local2,local3.* -/var/log/localmessages'
  • 4.2.1.3 ensure logging is configured - 'local4,local5.* -/var/log/localmessages'
  • 4.2.1.3 ensure logging is configured - 'local6,local7.* -/var/log/localmessages'
  • 4.2.1.3 ensure logging is configured - 'mail.* -/var/log/mail'
  • 4.2.1.3 ensure logging is configured - 'mail.err /var/log/mail.err'
  • 4.2.1.3 ensure logging is configured - 'mail.info -/var/log/mail.info'
  • 4.2.1.3 ensure logging is configured - 'mail.warning -/var/log/mail.warn'
  • 4.2.1.3 ensure logging is configured - 'news.crit -/var/log/news/news.crit'
  • 4.2.1.3 ensure logging is configured - 'news.err -/var/log/news/news.err'
  • 4.2.1.3 ensure logging is configured - 'news.notice -/var/log/news/news.notice'
  • 4.2.1.4 Ensure rsyslog default file permissions configured
  • 4.2.1.5 Ensure rsyslog is configured to send logs to a remote log host
  • 4.2.1.6 Ensure remote rsyslog messages are only accepted on designated log hosts - InputTCPServerRun
  • 4.2.1.6 Ensure remote rsyslog messages are only accepted on designated log hosts - ModLoad
  • 5.3.1 Ensure password creation requirements are configured - 'dcredit'
  • 5.3.1 Ensure password creation requirements are configured - 'lcredit'
  • 5.3.1 Ensure password creation requirements are configured - 'ocredit'
  • 5.3.1 Ensure password creation requirements are configured - 'ucredit'
Miscellaneous
  • Platform check updated.
Revision 1.11

Sep 30, 2020

Functional Update
  • 6.2.10 Ensure users' dot files are not group or world writable
Revision 1.10

Sep 29, 2020

Miscellaneous
  • References updated.
Revision 1.9

Aug 25, 2020

Functional Update
  • 5.4.1.1 Ensure password expiration is 365 days or less - users
Revision 1.8

Aug 10, 2020

Functional Update
  • 1.8.1.1 Ensure message of the day is configured properly
  • 1.8.1.2 Ensure local login warning banner is configured properly
  • 1.8.1.3 Ensure remote login warning banner is configured properly
  • 2.2.1.1 Ensure time synchronization is in use
  • 2.2.1.2 Ensure systemd-timesyncd is configured - FallbackNTP
  • 2.2.1.2 Ensure systemd-timesyncd is configured - NTP
  • 2.2.1.2 Ensure systemd-timesyncd is configured - RootDistanceMaxSec
  • 2.2.1.3 Ensure chrony is configured - server
  • 2.2.1.3 Ensure chrony is configured - uid
  • 2.2.1.4 Ensure ntp is configured - restrict -4
  • 2.2.1.4 Ensure ntp is configured - restrict -6
  • 2.2.1.4 Ensure ntp is configured - server
  • 2.2.1.4 Ensure ntp is configured - user
  • 4.2.1.1 Ensure rsyslog is installed
  • 4.2.1.2 Ensure rsyslog Service is enabled
  • 4.2.1.3 Ensure logging is configured - '*.*;mail.none;news.none -/var/log/messages'
  • 4.2.1.3 Ensure logging is configured - '*.=warning;*.=err -/var/log/warn'
  • 4.2.1.3 Ensure logging is configured - '*.crit /var/log/warn'
  • 4.2.1.3 Ensure logging is configured - '*.emerg :omusrmsg:*'
  • 4.2.1.3 Ensure logging is configured - 'auth,authpriv.* /var/log/auth.log'
  • 4.2.1.3 Ensure logging is configured - 'local0,local1.* -/var/log/localmessages'
  • 4.2.1.3 Ensure logging is configured - 'local2,local3.* -/var/log/localmessages'
  • 4.2.1.3 Ensure logging is configured - 'local4,local5.* -/var/log/localmessages'
  • 4.2.1.3 Ensure logging is configured - 'local6,local7.* -/var/log/localmessages'
  • 4.2.1.3 Ensure logging is configured - 'mail.* -/var/log/mail'
  • 4.2.1.3 Ensure logging is configured - 'mail.err /var/log/mail.err'
  • 4.2.1.3 Ensure logging is configured - 'mail.info -/var/log/mail.info'
  • 4.2.1.3 Ensure logging is configured - 'mail.warning -/var/log/mail.warn'
  • 4.2.1.3 Ensure logging is configured - 'news.crit -/var/log/news/news.crit'
  • 4.2.1.3 Ensure logging is configured - 'news.err -/var/log/news/news.err'
  • 4.2.1.3 Ensure logging is configured - 'news.notice -/var/log/news/news.notice'
  • 4.2.1.4 Ensure rsyslog default file permissions configured
  • 4.2.1.5 Ensure rsyslog is configured to send logs to a remote log host
  • 4.2.1.6 Ensure remote rsyslog messages are only accepted on designated log hosts - InputTCPServerRun
  • 4.2.1.6 Ensure remote rsyslog messages are only accepted on designated log hosts - ModLoad
  • 5.2.10 Ensure SSH root login is disabled
  • 5.2.11 Ensure SSH PermitEmptyPasswords is disabled
  • 5.2.12 Ensure SSH PermitUserEnvironment is disabled
  • 5.2.14 Ensure only strong MAC algorithms are used - approved MACs
  • 5.2.14 Ensure only strong MAC algorithms are used - weak MACs
  • 5.2.15 Ensure only strong Key Exchange algorithms are used - approved algorithms
  • 5.2.15 Ensure only strong Key Exchange algorithms are used - weak algorithms
  • 5.2.16 Ensure SSH Idle Timeout Interval is configured - 'ClientAliveCountMax'
  • 5.2.16 Ensure SSH Idle Timeout Interval is configured - 'ClientAliveInterval'
  • 5.2.17 Ensure SSH LoginGraceTime is set to one minute or less
  • 5.2.18 Ensure SSH access is limited
  • 5.2.19 Ensure SSH warning banner is configured
  • 5.2.20 Ensure SSH PAM is enabled
  • 5.2.22 Ensure SSH MaxStartups is configured
  • 5.2.23 Ensure SSH MaxSessions is set to 4 or less
  • 5.2.4 Ensure SSH Protocol is not set to 1
  • 5.2.5 Ensure SSH LogLevel is appropriate
  • 5.2.7 Ensure SSH MaxAuthTries is set to 4 or less
  • 5.2.8 Ensure SSH IgnoreRhosts is enabled
  • 5.2.9 Ensure SSH HostbasedAuthentication is disabled
Informational Update
  • 4.2.1.1 Ensure rsyslog is installed
  • 4.2.1.2 Ensure rsyslog Service is enabled
  • 4.2.1.3 Ensure logging is configured - '*.*;mail.none;news.none -/var/log/messages'
  • 4.2.1.3 Ensure logging is configured - '*.=warning;*.=err -/var/log/warn'
  • 4.2.1.3 Ensure logging is configured - '*.crit /var/log/warn'
  • 4.2.1.3 Ensure logging is configured - '*.emerg :omusrmsg:*'
  • 4.2.1.3 Ensure logging is configured - 'auth,authpriv.* /var/log/auth.log'
  • 4.2.1.3 Ensure logging is configured - 'local0,local1.* -/var/log/localmessages'
  • 4.2.1.3 Ensure logging is configured - 'local2,local3.* -/var/log/localmessages'
  • 4.2.1.3 Ensure logging is configured - 'local4,local5.* -/var/log/localmessages'
  • 4.2.1.3 Ensure logging is configured - 'local6,local7.* -/var/log/localmessages'
  • 4.2.1.3 Ensure logging is configured - 'mail.* -/var/log/mail'
  • 4.2.1.3 Ensure logging is configured - 'mail.err /var/log/mail.err'
  • 4.2.1.3 Ensure logging is configured - 'mail.info -/var/log/mail.info'
  • 4.2.1.3 Ensure logging is configured - 'mail.warning -/var/log/mail.warn'
  • 4.2.1.3 Ensure logging is configured - 'news.crit -/var/log/news/news.crit'
  • 4.2.1.3 Ensure logging is configured - 'news.err -/var/log/news/news.err'
  • 4.2.1.3 Ensure logging is configured - 'news.notice -/var/log/news/news.notice'
  • 4.2.1.4 Ensure rsyslog default file permissions configured
  • 4.2.1.5 Ensure rsyslog is configured to send logs to a remote log host
  • 4.2.1.6 Ensure remote rsyslog messages are only accepted on designated log hosts - InputTCPServerRun
  • 4.2.1.6 Ensure remote rsyslog messages are only accepted on designated log hosts - ModLoad
  • 5.3.2 Ensure lockout for failed password attempts is configured - account pam_deny.so
  • 5.3.2 Ensure lockout for failed password attempts is configured - auth pam_tally2.so
Miscellaneous
  • Platform check updated.
  • References updated.
  • Variables updated.
Added
  • 4.2.1.3 ensure logging is configured - '*.*;mail.none;news.none -/var/log/messages'
  • 4.2.1.3 ensure logging is configured - '*.=warning;*.=err -/var/log/warn'
  • 4.2.1.3 ensure logging is configured - '*.crit /var/log/warn'
  • 4.2.1.3 ensure logging is configured - '*.emerg :omusrmsg:*'
  • 4.2.1.3 ensure logging is configured - 'local0,local1.* -/var/log/localmessages'
  • 4.2.1.3 ensure logging is configured - 'local2,local3.* -/var/log/localmessages'
  • 4.2.1.3 ensure logging is configured - 'local4,local5.* -/var/log/localmessages'
  • 4.2.1.3 ensure logging is configured - 'local6,local7.* -/var/log/localmessages'
  • 4.2.1.3 ensure logging is configured - 'mail.* -/var/log/mail'
  • 4.2.1.3 ensure logging is configured - 'mail.err /var/log/mail.err'
  • 4.2.1.3 ensure logging is configured - 'mail.info -/var/log/mail.info'
  • 4.2.1.3 ensure logging is configured - 'mail.warning -/var/log/mail.warn'
  • 4.2.1.3 ensure logging is configured - 'news.crit -/var/log/news/news.crit'
  • 4.2.1.3 ensure logging is configured - 'news.err -/var/log/news/news.err'
  • 4.2.1.3 ensure logging is configured - 'news.notice -/var/log/news/news.notice'
  • 5.3.2 Ensure lockout for failed password attempts is configured - account pam_tally2.so
Removed
  • 5.3.2 Ensure lockout for failed password attempts is configured - account pam_tally.so
Revision 1.7

Aug 4, 2020

Functional Update
  • 4.2.3 Ensure permissions on all logfiles are configured
Revision 1.6

Jul 28, 2020

Functional Update
  • 6.1.11 Ensure no unowned files or directories exist
  • 6.1.12 Ensure no ungrouped files or directories exist