| Ensure discretionary access control permission modification events are collected - b32 chmod fchmod | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure discretionary access control permission modification events are collected - b32 setxattr | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure discretionary access control permission modification events are collected - b64 chmod fchmod | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure discretionary access control permission modification events are collected - b64 setxattr | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure events that modify date and time information are collected - audit.rules b32 adjtimex | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure events that modify date and time information are collected - auditctl b64 clock_settime | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure events that modify the system's network environment are collected - /etc/issue.net | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure events that modify the system's network environment are collected - auditctl /etc/sysconfig/network | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure events that modify the system's network environment are collected - b32 sethostname | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure events that modify user/group information are collected - /etc/passwd | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure events that modify user/group information are collected - /etc/security/opasswd | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure firewall rules exist for all open ports | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| Ensure kernel module loading and unloading is collected - auditctl init_module | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure login and logout events are collected - lastlog | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure login and logout events are collected - tallylog | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure message of the day is configured properly | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure mounting of cramfs filesystems is disabled - lsmod | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure mounting of freevxfs filesystems is disabled - lsmod | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure mounting of freevxfs filesystems is disabled - modprobe | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure mounting of hfs filesystems is disabled - lsmod | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure mounting of hfsplus filesystems is disabled - lsmod | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure no legacy '+' entries exist in /etc/group | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | IDENTIFICATION AND AUTHENTICATION |
| Ensure nodev option set on /var/tmp partition | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | ACCESS CONTROL |
| Ensure nosuid option set on /dev/shm partition | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | ACCESS CONTROL |
| Ensure nosuid option set on /tmp partition | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | ACCESS CONTROL |
| Ensure nosuid option set on removable media partitions | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure ntp is configured - restrict -6 | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure packet redirect sending is disabled - /etc/sysctl ipv4 default send | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| Ensure packet redirect sending is disabled - sysctl ipv4 default send | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| Ensure password expiration warning days is 7 or more | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | IDENTIFICATION AND AUTHENTICATION |
| Ensure password reuse is limited - pam_pwhistory.so | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | IDENTIFICATION AND AUTHENTICATION |
| Ensure password reuse is limited - pam_unix.so | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | IDENTIFICATION AND AUTHENTICATION |
| Ensure permissions on /etc/cron.daily are configured | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure permissions on /etc/hosts.allow are configured | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure permissions on /etc/hosts.deny are configured | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure permissions on /etc/shadow are configured | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | IDENTIFICATION AND AUTHENTICATION |
| Ensure remote rsyslog messages are only accepted on designated log hosts - ModLoad | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure secure ICMP redirects are not accepted - /etc/sysctl ipv4 default secure | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| Ensure separate partition exists for /var/log | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY, CONFIGURATION MANAGEMENT |
| Ensure separate partition exists for /var/log/audit | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY, CONFIGURATION MANAGEMENT |
| Ensure session initiation information is collected - auditctl wtmp | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure successful file system mounts are collected - auditctl b32 | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure successful file system mounts are collected - b64 | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure suspicious packets are logged - sysctl ipv4 default log_martians | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure syslog-ng is configured to send logs to a remote log host - log src | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure system is disabled when audit logs are full - 'action_mail_acct = root' | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure system is disabled when audit logs are full - 'admin_space_left_action = halt' | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure the audit configuration is immutable | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure unsuccessful unauthorized file access attempts are collected - auditctl b32 EACCES | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure users' home directories permissions are 750 or more restrictive | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
