...
| chapter | section | index | title | v8.x.x enabled |
| 1 | Initial Setup | |||
| 1.1 | Filesystem Configuration | |||
| 1.1.1.1 | Ensure mounting of cramfs filesystems is disabled | always | ||
| 1.1.1.2 | Ensure mounting of freevxfs filesystems is disabled | always | ||
| 1.1.1.3 | Ensure mounting of jffs2 filesystems is disabled | always | ||
| 1.1.1.4 | Ensure mounting of hfs filesystems is disabled | always | ||
| 1.1.1.5 | Ensure mounting of hfsplus filesystems is disabled | always | ||
| 1.1.1.6 | Ensure mounting of udf filesystems is disabled | always | ||
| 1.1.2 | Ensure separate partition exists for /tmp | always | ||
| 1.1.3 | Ensure nodev option set on /tmp partition | always | ||
| 1.1.4 | Ensure nosuid option set on /tmp partition | always | ||
| 1.1.5 | Ensure separate partition exists for /var | always | ||
| 1.1.6 | Ensure separate partition exists for /var/tmp | always | ||
| 1.1.7 | Ensure nodev option set on /var/tmp partition | always | ||
| 1.1.8 | Ensure nosuid option set on /var/tmp partition | always | ||
| 1.1.9 | Ensure noexec option set on /var/tmp partition | always | ||
| 1.1.10 | Ensure separate partition exists for /var/log | always | ||
| 1.1.11 | Ensure separate partition exists for /var/log/audit | always | ||
| 1.1.12 | Ensure separate partition exists for /home | always | ||
| 1.1.13 | Ensure nodev option set on /home partition | always | ||
| 1.1.14 | Ensure nodev option set on /dev/shm partition (/run) | always | ||
| 1.1.15 | Ensure nosuid option set on /dev/shm partition (/run) | always | ||
| 1.1.16 | Ensure noexec option set on /dev/shm partition (/run) | always | ||
| 1.1.17 | Ensure nodev option set on removable media partitions | always | ||
| 1.1.18 | Ensure nosuid option set on removable media partitions | always | ||
| 1.1.19 | Ensure noexec option set on removable media partitions | always | ||
| 1.1.20 | Ensure sticky bit is set on all world-writable directories | always | ||
| 1.1.21 | Disable Automounting | always | ||
| 1.2 | Configure Software Updates | |||
| 1.2.1 | Ensure package manager repositories are configured | always | ||
| 1.2.2 | Ensure GPG keys are configured | always | ||
| 1.3 | Filesystem Integrity Checking | |||
| 1.3.1 | Ensure AIDE is installed | always | ||
| 1.3.2 | Ensure filesystem integrity is regularly checked | always | ||
| 1.4 | Secure Boot Settings | |||
| 1.4.1 | Ensure permissions on bootloader config are configured | always | ||
| 1.4.2 | Ensure bootloader password is set | alwaysWon't do | ||
| 1.4.3 | Ensure authentication required for single user mode | always | ||
| 1.5 | Additional Process Hardening | |||
| 1.5.1 | Ensure core dumps are restricted | always | ||
| 1.5.2 | Ensure XD/NX support is enabled | always | ||
| 1.5.3 | Ensure address space layout randomization (ASLR) is enabled | always | ||
| 1.5.4 | Ensure prelink is disabled | always | ||
| 1.6 | Mandatory Access Control | |||
| 1.6.1.1 | Ensure SELinux is not disabled in bootloader configuration | always | ||
| 1.6.1.2 | Ensure the SELinux state is enforcing | always | ||
| 1.6.1.3 | Ensure SELinux policy is configured | always | ||
| 1.6.1.4 | Ensure no unconfined daemons exist | always | ||
| 1.6.2.1 | Ensure AppArmor is not disabled in bootloader configuration | always | ||
| 1.6.2.2 | Ensure all AppArmor Profiles are enforcing | always | ||
| 1.6.3 | Ensure SELinux or AppArmor are installed | always | ||
| 1.7 | Warning Banners | |||
| 1.7.1.1 | Ensure message of the day is configured properly | always | ||
| 1.7.1.2 | Ensure local login warning banner is configured properly | always | ||
| 1.7.1.3 | Ensure remote login warning banner is configured properly | always | ||
| 1.7.1.4 | Ensure permissions on /etc/motd are configured | always | ||
| 1.7.1.5 | Ensure permissions on /etc/issue are configured | always | ||
| 1.7.1.6 | Ensure permissions on /etc/issue.net are configured | always | ||
| 1.7.2 | Ensure GDM login banner is configured | always | ||
| 1.8 | Ensure updates patches and additional security software are installed | |||
| 2 | Services | |||
| 2.1 | inetd Services | |||
| 2.1.1 | Ensure chargen services are not enabled | always | ||
| 2.1.2 | Ensure daytime services are not enabled | always | ||
| 2.1.3 | Ensure discard services are not enabled | always | ||
| 2.1.4 | Ensure echo services are not enabled | always | ||
| 2.1.5 | Ensure time services are not enabled | always | ||
| 2.1.6 | Ensure rsh server is not enabled | always | ||
| 2.1.7 | Ensure talk server is not enabled | always | ||
| 2.1.8 | Ensure telnet server is not enabled | always | ||
| 2.1.9 | Ensure tftp server is not enabled | always | ||
| 2.1.10 | Ensure xinetd is not enabled | always | ||
| 2.1.11 | Ensure openbsd-inetd is not installed | always | ||
| 2.2 | Special Purpose Services | |||
| 2.2.1.1 | Ensure time synchronization is in use | alwaysfalse positive | ||
| 2.2.1.2 | Ensure ntp is configured | always | ||
| 2.2.1.3 | Ensure chrony is configured | alwaysfalse positive | ||
| 2.2.2 | Ensure X Window System is not installed | always | ||
| 2.2.3 | Ensure Avahi Server is not enabled | always | ||
| 2.2.4 | Ensure CUPS is not enabled | always | ||
| 2.2.5 | Ensure DHCP Server is not enabled | always | ||
| 2.2.6 | Ensure LDAP server is not enabled | always | ||
| 2.2.7 | Ensure NFS and RPC are not enabled | alwaysfalse positive | ||
| 2.2.8 | Ensure DNS Server is not enabled | always | ||
| 2.2.9 | Ensure FTP Server is not enabled | always | ||
| 2.2.10 | Ensure HTTP server is not enabled | alwayswon't fix | ||
| 2.2.11 | Ensure IMAP and POP3 server is not enabled | always | ||
| 2.2.12 | Ensure Samba is not enabled | alwaysfalse positive | ||
| 2.2.13 | Ensure HTTP Proxy Server is not enabled | always | ||
| 2.2.14 | Ensure SNMP Server is not enabled | alwaysfalse positive | ||
| 2.2.15 | Ensure mail transfer agent is configured for local-only mode | always | ||
| 2.2.16 | Ensure rsync service is not enabled | alwaysfalse positive | ||
| 2.2.17 | Ensure NIS Server is not enabled | always | ||
| 2.3 | Service Clients | |||
| 2.3.1 | Ensure NIS Client is not installed | always | ||
| 2.3.2 | Ensure rsh client is not installed | always | ||
| 2.3.3 | Ensure talk client is not installed | always | ||
| 2.3.4 | Ensure telnet client is not installed | always | ||
| 2.3.5 | Ensure LDAP client is not installed | alwaysfalse positive | ||
| 3 | Network Configuration | |||
| 3.1 | Network Parameters (Host Only) | |||
| 3.1.1 | Ensure IP forwarding is disabled | always | ||
| 3.1.2 | Ensure packet redirect sending is disabled | always | ||
| 3.2 | Network Parameters (Host and Router) | |||
| 3.2.1 | Ensure source routed packets are not accepted | always | ||
| 3.2.2 | Ensure ICMP redirects are not accepted | always | ||
| 3.2.3 | Ensure secure ICMP redirects are not accepted | always | ||
| 3.2.4 | Ensure suspicious packets are logged | always | ||
| 3.2.5 | Ensure broadcast ICMP requests are ignored | always | ||
| 3.2.6 | Ensure bogus ICMP responses are ignored | always | ||
| 3.2.7 | Ensure Reverse Path Filtering is enabled | always | ||
| 3.2.8 | Ensure TCP SYN Cookies is enabled | always | ||
| 3.3 | Ipv6 | |||
| 3.3.1 | Ensure IPv6 router advertisements are not accepted | always | ||
| 3.3.2 | Ensure IPv6 redirects are not accepted | always | ||
| 3.3.3 | Ensure IPv6 is disabled | always | ||
| 3.4 | TCP Wrappers | |||
| 3.4.1 | Ensure TCP Wrappers is installed | always | ||
| 3.4.2 | Ensure /etc/hosts.allow is configured | alwaysfalse positive | ||
| 3.4.3 | Ensure /etc/hosts.deny is configured | alwaysfalse positive | ||
| 3.4.4 | Ensure permissions on /etc/hosts.allow are configured | always | ||
| 3.4.5 | Ensure permissions on /etc/hosts.deny are configured | always | ||
| 3.5 | Uncommon Network Protocols | |||
| 3.5.1 | Ensure DCCP is disabled | always | ||
| 3.5.2 | Ensure SCTP is disabled | always | ||
| 3.5.3 | Ensure RDS is disabled | always | ||
| 3.5.4 | Ensure TIPC is disabled | always | ||
| 3.6 | Firewall Configuration | |||
| 3.6.1 | Ensure iptables is installed | always | ||
| 3.6.2 | Ensure default deny firewall policy | always | ||
| 3.6.3 | Ensure loopback traffic is configured | always | ||
| 3.6.4 | Ensure outbound and established connections are configured | always | ||
| 3.6.5 | Ensure firewall rules exist for all open ports | always | ||
| 3.7 | Ensure wireless interfaces are disabled | always | ||
| 4 | Logging and Auditing | |||
| 4.1 | Configure System Accounting (auditd) | |||
| 4.1.1.1 | Ensure audit log storage size is configured | always | ||
| 4.1.1.2 | Ensure system is disabled when audit logs are full | alwaysfalse positive | ||
| 4.1.1.3 | Ensure audit logs are not automatically deleted | alwaysfalse positive | ||
| 4.1.2 | Ensure auditd service is enabled | needs STIG | ||
| 4.1.3 | Ensure auditing for processes that start prior to auditd is enabled | needs STIG | ||
| 4.1.4 | Ensure events that modify date and time information are collected | needs STIG | ||
| 4.1.5 | Ensure events that modify user/group information are collected | needs STIG | ||
| 4.1.6 | Ensure events that modify the system's network environment are collected | needs STIG | ||
| 4.1.7 | Ensure events that modify the system's Mandatory Access Controls are collected | needs STIG | ||
| 4.1.8 | Ensure login and logout events are collected | needs STIG | ||
| 4.1.9 | Ensure session initiation information is collected | needs STIG | ||
| 4.1.10 | Ensure discretionary access control permission modification events are collected | needs STIG | ||
| 4.1.11 | Ensure unsuccessful unauthorized file access attempts are collected | needs STIG | ||
| 4.1.12 | Ensure use of privileged commands is collected | needs STIG | ||
| 4.1.13 | Ensure successful file system mounts are collected | needs STIG | ||
| 4.1.14 | Ensure file deletion events by users are collected | needs STIG | ||
| 4.1.15 | Ensure changes to system administration scope (sudoers) is collected | needs STIG | ||
| 4.1.16 | Ensure system administrator actions (sudolog) are collected | needs STIG | ||
| 4.1.17 | Ensure kernel module loading and unloading is collected | needs STIG | ||
| 4.1.18 | Ensure the audit configuration is immutable | needs STIG | ||
| 4.2 | Configure Logging | |||
| 4.2.1.1 | Ensure rsyslog Service is enabled | always | ||
| 4.2.1.2 | Ensure logging is configured | always | ||
| 4.2.1.3 | Ensure rsyslog default file permissions configured | always | ||
| 4.2.1.4 | Ensure rsyslog is configured to send logs to a remote log host | alwaysfalse positive | ||
| 4.2.1.5 | Ensure remote rsyslog messages are only accepted on designated log hosts | alwaysfalse positive | ||
| 4.2.2.1 | Ensure syslog-ng service is enabled | always | ||
| 4.2.2.2 | Ensure logging is configured | always | ||
| 4.2.2.3 | Ensure syslog-ng default file permissions configured | always | ||
| 4.2.2.4 | Ensure syslog-ng is configured to send logs to a remote log host | always | ||
| 4.2.2.5 | Ensure remote syslog-ng messages are only accepted on designated log hosts] | always | ||
| 4.2.3 | Ensure rsyslog or syslog-ng is installed | always | ||
| 4.2.4 | Ensure permissions on all logfiles are configured | always | ||
| 4.3 | Ensure logrotate is configured | always | ||
| 5 | Access, Authentication and Authorization | |||
| 5.1 | Configure cron | |||
| 5.1.1 | Ensure cron daemon is enabled | always | ||
| 5.1.2 | Ensure permissions on /etc/crontab are configured | always | ||
| 5.1.3 | Ensure permissions on /etc/cron.hourly are configured | always | ||
| 5.1.4 | Ensure permissions on /etc/cron.daily are configured | always | ||
| 5.1.5 | Ensure permissions on /etc/cron.weekly are configured | always | ||
| 5.1.6 | Ensure permissions on /etc/cron.monthly are configured | always | ||
| 5.1.7 | Ensure permissions on /etc/cron.d are configured | always | ||
| 5.1.8 | Ensure at/cron is restricted to authorized users | always | ||
| 5.2 | SSH Server Configuration | always | ||
| 5.2.1 | Ensure permissions on /etc/ssh/sshd_config are configured | always | ||
| 5.2.2 | Ensure SSH Protocol is set to 2 | always | ||
| 5.2.3 | Ensure SSH LogLevel is set to INFO | always | ||
| 5.2.4 | Ensure SSH X11 forwarding is disabled | always | ||
| 5.2.5 | Ensure SSH MaxAuthTries is set to 4 or less | always | ||
| 5.2.6 | Ensure SSH IgnoreRhosts is enabled | always | ||
| 5.2.7 | Ensure SSH HostbasedAuthentication is disabled | always | ||
| 5.2.8 | Ensure SSH root login is disabled | always | ||
| 5.2.9 | Ensure SSH PermitEmptyPasswords is disabled | always | ||
| 5.2.10 | Ensure SSH PermitUserEnvironment is disabled | always | ||
| 5.2.11 | Ensure only approved MAC algorithms are used | always | ||
| 5.2.12 | Ensure SSH Idle Timeout Interval is configured | always | ||
| 5.2.13 | Ensure SSH LoginGraceTime is set to one minute or less | always | ||
| 5.2.14 | Ensure SSH access is limited | always | ||
| 5.2.15 | Ensure SSH warning banner is configured | always | ||
| 5.3 | Configure PAM | |||
| 5.3.1 | Ensure password creation requirements are configured | alwaysfalse positive | ||
| 5.3.2 | Ensure lockout for failed password attempts is configured | always | ||
| 5.3.3 | Ensure password reuse is limited | always | ||
| 5.3.4 | Ensure password hashing algorithm is SHA-512 | always | ||
| 5.4 | User Accounts and Environment | |||
| 5.4.1.1 | Ensure password expiration is 365 days or less | always | ||
| 5.4.1.2 | Ensure minimum days between password changes is 7 or more | always | ||
| 5.4.1.3 | Ensure password expiration warning days is 7 or more | always | ||
| 5.4.1.4 | Ensure inactive password lock is 30 days or less | always | ||
| 5.4.1.5 | Ensure all users last password change date is in the past | always | ||
| 5.4.2 | Ensure system accounts are non-login | always | ||
| 5.4.3 | Ensure default group for the root account is GID 0 | always | ||
| 5.4.4 | Ensure default user umask is 027 or more restrictive | always | ||
| 5.4.5 | Ensure default user shell timeout is 900 seconds or less | always | ||
| 5.5 | Ensure root login is restricted to system console | always | ||
| 5.6 | Ensure access to the su command is restricted | always | ||
| 6 | System Maintenance | |||
| 6.1 | System File Permissions | |||
| 6.1.1 | Audit system file permissions | always | ||
| 6.1.2 | Ensure permissions on /etc/passwd are configured | always | ||
| 6.1.3 | Ensure permissions on /etc/shadow are configured | always | ||
| 6.1.4 | Ensure permissions on /etc/group are configured | always | ||
| 6.1.5 | Ensure permissions on /etc/gshadow are configured | always | ||
| 6.1.6 | Ensure permissions on /etc/passwd- are configured | always | ||
| 6.1.7 | Ensure permissions on /etc/shadow- are configured | always | ||
| 6.1.8 | Ensure permissions on /etc/group- are configured | always | ||
| 6.1.9 | Ensure permissions on /etc/gshadow- are configured | always | ||
| 6.1.10 | Ensure no world writable files exist | alwaysfalse positive | ||
| 6.1.11 | Ensure no unowned files or directories exist | always | ||
| 6.1.12 | Ensure no ungrouped files or directories exist | always | ||
| 6.1.13 | Audit SUID executables | always | ||
| 6.1.14 | Audit SGID executables | always | ||
| 6.2 | User and Group Settings | |||
| 6.2.1 | Ensure password fields are not empty | always | ||
| 6.2.2 | Ensure no legacy "+" entries exist in /etc/passwd | always | ||
| 6.2.3 | Ensure no legacy "+" entries exist in /etc/shadow | always | ||
| 6.2.4 | Ensure no legacy "+" entries exist in /etc/group | always | ||
| 6.2.5 | Ensure root is the only UID 0 account | always | ||
| 6.2.6 | Ensure root PATH Integrity | always | ||
| 6.2.7 | Ensure all users' home directories exist | always | ||
| 6.2.8 | Ensure users' home directories permissions are 750 or more restrictive | always | ||
| 6.2.9 | Ensure users own their home directories | always | ||
| 6.2.10 | Ensure users' dot files are not group or world writable | always | ||
| 6.2.11 | Ensure no users have .forward files | always | ||
| 6.2.12 | Ensure no users have .netrc files | always | ||
| 6.2.13 | Ensure users' .netrc Files are not group or world accessible | always | ||
| 6.2.14 | Ensure no users have .rhosts files | always | ||
| 6.2.15 | Ensure all groups in /etc/passwd exist in /etc/group | always | ||
| 6.2.16 | Ensure no duplicate UIDs exist | always | ||
| 6.2.17 | Ensure no duplicate GIDs exist | always | ||
| 6.2.18 | Ensure no duplicate user names exist | always | ||
| 6.2.19 | Ensure no duplicate group names exist | always | ||
| 6.2.20 | Ensure shadow group is empty | always | ||
...
hmac-sha2-256,
umac-128@openssh.com
False positives:
2.3.5 Ensure LDAP client is not installed. Snare Central comes with LDAP client.
2.2.1.1 Ensure time synchronization is in use. Snare Central runs ntpdate daily
2.2.1.3 Ensure chrony is configured. Snare Central does not use chrony
2.2.7 Ensure NFS and RPC are not enabled. User can disable NFS from UI
2.2.12 Ensure Samba is not enabled. User can disable samba from UI
2.2.14 Ensure SNMP Server is not enabled. User can disable SNMP from UI
2.2.16 Ensure rsync service is not enabled. Is used for side by side migration only.
3.4.2 Ensure /etc/hosts.allow is configured. The contents depend on user network layout.
3.4.3 Ensure /etc/hosts.deny is configured. The contents depend on user network layout.
4.1.1.2 Ensure system is disabled when audit logs are full. Snare Central uses SUSPEND instead of HALT
4.1.1.3 Ensure audit logs are not automatically deleted. Saner Central uses ROTATE instead of KEEP
4.2.1.4 Ensure rsyslog is configured to send logs to a remote log host. Not Applicable
4.2.1.5 Ensure remote rsyslog messages are only accepted on designated log hosts. Not Applicable
5.3.1 Ensure password creation requirements are configured. Saner Central uses pam_cracklib
6.1.10 Ensure no world writable files exist. Apache web server needs this file only: /tmp/perf-23853.map owner: www-data, group: www-data, permissions: 0666
Won't do:
1.4.2 Ensure bootloader password is set. this need to be done manually by the sysadmin