Linux Security Audit Tool

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Инструмент аудита безопасности Linux на основе CIS - Red Hat Enterprise Linux 8 Benchmark v3.0.0
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Содержание

1. Возможности
2. Предпросмотр
3. Журнал результатов
4. Поддерживаемые ОС
5. Предварительные требования
6. Примечания
- 6.1. Зачем это сделано?

1. Initial Setup 1.6 Configure system wide crypto policy 1.6.1 Ensure system wide crypto policy is not set to legacy 1.6.2 Ensure system wide crypto policy disables sha1 hash and signature support 1.6.3 Ensure system wide crypto policy disables cbc for ssh 1.6.4 Ensure system wide crypto policy disables macs less than 128 bits 1.7 Configure Command Line Warning Banners 1.7.1 Ensure message of the day is configured properly 1.7.2 Ensure local login warning banner is configured properly 1.7.3 Ensure remote login warning banner is configured properly 1.7.4 Ensure access to /etc/motd is configured 1.7.5 Ensure access to /etc/issue is configured 1.7.6 Ensure access to /etc/issue.net is configured 2. Services 2.1 Configure Time Synchronization 2.1.1 Ensure time synchronization is in use 2.1.2 Ensure chrony is configured 2.1.3 Ensure chrony is not run as the root user 2.2 Configure Special Purpose Services 2.2.1 Ensure autofs services are not in use 2.2.2 Ensure avahi daemon services are not in use 2.2.3 Ensure dhcp server services are not in use 2.2.4 Ensure dns server services are not in use 2.2.5 Ensure dnsmasq services are not in use 2.2.6 Ensure samba file server services are not in use 2.2.7 Ensure ftp server services are not in use 2.2.8 Ensure message access server services are not in use 2.2.9 Ensure network file system services are not in use 2.2.10 Ensure nis server services are not in use 2.2.11 Ensure print server services are not in use 2.2.12 Ensure rpcbind services are not in use 2.2.13 Ensure rsync services are not in use 2.2.14 Ensure snmp services are not in use 2.2.15 Ensure telnet server services are not in use 2.2.16 Ensure tftp server services are not in use 2.2.17 Ensure web proxy server services are not in use 2.2.18 Ensure web server services are not in use 2.2.19 Ensure xinetd services are not in use 2.2.20 Ensure X window server services are not in use 2.2.21 Ensure mail transfer agents are configured for local-only mode 2.2.22 Ensure only approved services are listening on a network interface 4. Access, Authentication and Authorization 4.1 Configure job schedulers 4.1.1 Configure cron. 4.1.1.1 Ensure cron daemon is enabled and active 4.1.1.2 Ensure permissions on /etc/crontab are configured 4.1.1.3 Ensure permissions on /etc/cron.hourly are configured 4.1.1.4 Ensure permissions on /etc/cron.daily are configured 4.1.1.5 Ensure permissions on /etc/cron.weekly are configured 4.1.1.6 Ensure permissions on /etc/cron.monthly are configured 4.1.1.7 Ensure permissions on /etc/cron.d are configured 4.1.1.8 Ensure crontab is restricted to authorized users 4.1.2 Configure at 4.1.2.1 Ensure at is restricted to authorized users 4.2 Configure SSH Server 4.2.1 Ensure permissions on /etc/ssh/sshd_config are configured 4.2.2 Ensure permissions on SSH private host key files are configured 4.2.3 Ensure permissions on SSH public host key files are configured 4.2.4 Ensure sshd access is configured 4.2.5 Ensure sshd Banner is configured 4.2.6 Ensure sshd Ciphers are configured 4.2.7 Ensure sshd ClientAliveInterval and ClientAliveCountMax are configured 4.2.8 Ensure sshd DisableForwarding is enabled 4.2.9 Ensure sshd HostbasedAuthentication is disabled 4.2.10 Ensure sshd IgnoreRhosts is enabled 4.2.11 Ensure sshd KexAlgorithms is configured 4.2.12 Ensure sshd LoginGraceTime is configured 4.2.13 Ensure sshd LogLevel is configured 4.2.14 Ensure sshd MACs are configured 4.2.15 Ensure sshd MaxAuthTries is configured 4.2.16 Ensure sshd MaxSessions is configured 4.2.17 Ensure sshd MaxStartups is configured 4.2.18 Ensure sshd PermitEmptyPasswords is disabled 4.2.19 Ensure sshd PermitRootLogin is disabled 4.2.20 Ensure sshd PermitUserEnvironment is disabled 4.2.21 Ensure sshd UsePAM is enabled 4.2.22 Ensure sshd crypto_policy is not set 4.3 Configure privilege escalation 4.3.1 Ensure sudo is installed 4.3.2 Ensure sudo commands use pty 4.3.3 Ensure sudo log file exists 4.3.4 Ensure users must provide password for escalation 4.3.5 Ensure re-authentication for privilege escalation is not disabled globally 4.3.6 Ensure sudo authentication timeout is configured correctly 4.3.7 Ensure access to the su command is restricted 4.4 Configure Pluggable Authentication Modules 4.4.2 Configure authselect 4.4.2.1 Ensure active authselect profile includes pam modules 4.4.2.2 Ensure pam_faillock module is enabled 4.4.2.3 Ensure pam_pwquality module is enabled 4.4.2.4 Ensure pam_pwhistory module is enabled 4.4.2.5 Ensure pam_unix module is enabled 4.4.3 Configure pluggable module arguments 4.4.3.1.1 Ensure password failed attempts lockout is configured 4.4.3.1.2 Ensure password unlock time is configured 4.4.3.1.3 Ensure password failed attempts lockout includes root account 4.4.3.2.1 Ensure password number of changed characters is configured 4.4.3.2.2 Ensure password length is configured 4.4.3.2.3 Ensure password complexity is configured (Manual) 4.4.3.2.4 Ensure password same consecutive characters is configured 4.4.3.2.5 Ensure password maximum sequential characters is configured 4.4.3.2.6 Ensure password dictionary check is enabled 4.4.3.2.7 Ensure password quality is enforced for the root user 4.4.3.2.8 Ensure password quality is enforced for the root user 4.4.3.3.1 Ensure password history remember is configured 4.4.3.3.2 Ensure password history is enforced for the root user 4.4.3.3.3 Ensure pam_pwhistory includes use_authtok 4.4.3.4.1 Ensure pam_unix does not include nullok 4.4.3.4.2 Ensure pam_unix does not include remember 4.4.3.4.3 Ensure pam_unix includes a strong password hashing algorithm 4.4.3.4.4 Ensure pam_unix includes use_authtok 4.5 User Accounts and Environment 4.5.1 Configure shadow password suite parameters 4.5.1.1 Ensure strong password hashing algorithm is configured 4.5.1.2 Ensure password expiration policy is 180 days or less 4.5.1.3 Ensure password expiration warning days is 7 or more 4.5.1.4 Ensure inactive password lock is 30 days or less 4.5.1.5 Ensure all users last password change date is in the past 4.5.2 Configure root and system accounts and environment 4.5.2.1 Ensure default group for the root account is GID 0 4.5.2.2 Ensure root user umask is configured 4.5.2.3 Ensure system accounts are secured 4.5.2.4 Ensure root password is set 4.5.3 Configure user default environment 4.5.3.1 Ensure nologin is not listed in /etc/shells 4.5.3.2 Ensure default user shell timeout is configured 4.5.3.3 Ensure default user umask is configured 5. Logging and Auditing. 5.1 Configure Logging 5.1.1 Configure rsyslog 5.1.1.1 Ensure rsyslog is installed 5.1.1.2 Ensure rsyslog service is enabled 5.1.1.4 Ensure rsyslog default file permissions are configured 5.1.1.5 Ensure logging is configured 5.1.1.6 Ensure rsyslog is configured to send logs to a remote log host 5.1.1.7 Ensure rsyslog is not configured to receive logs from a remote client 6. System Maintenance 6.1 System File Permissions 6.1.1 Ensure permissions on /etc/passwd are configured 6.1.2 Ensure permissions on /etc/passwd- are configured 6.1.3 Ensure permissions on /etc/opasswd are configured 6.1.4 Ensure permissions on /etc/group are configured 6.1.5 Ensure permissions on /etc/group- are configured 6.1.6 Ensure permissions on /etc/shadow are configured 6.1.7 Ensure permissions on /etc/shadow- are configured 6.1.8 Ensure permissions on /etc/gshadow are configured 6.1.9 Ensure permissions on /etc/gshadow- are configured 6.1.10 Ensure permissions on /etc/shells are configured 6.1.11 Ensure world writable files and directories are secured 6.1.12 Ensure no unowned or ungrouped files or directories exist 6.1.13 Ensure SUID and SGID files are reviewed 6.1.14 Audit system file permissions 6.2 Local User and Group Settings 6.2.1 Ensure accounts in /etc/passwd use shadowed passwords 6.2.2 Ensure /etc/shadow password fields are not empty 6.2.3 Ensure all groups in /etc/passwd exist in /etc/group 6.2.4 Ensure no duplicate UIDs exist 6.2.5 Ensure no duplicate GIDs exist 6.2.6 Ensure no duplicate user names exist 6.2.7 Ensure no duplicate group names exist 6.2.8 Ensure root path integrity 6.2.9 Ensure root is the only UID 0 account 6.2.10 Ensure local interactive user home directories are configured 6.2.11 Ensure local interactive user dot files access is configured

<?xml version="1.0" encoding="UTF-8"?> <results> <items> <status>ok</status> <datetime>2024-08-06 04:01:14</datetime> <auditor>password123456</auditor> <target>buddy2</target> <os_name>Rocky Linux 8.8 (Green Obsidian)</os_name> <os_version>8.8</os_version> <os_id>rocky</os_id> <os_architecture>x86_64</os_architecture> <ip_address>[ens192] 172.16.13.51</ip_address> <mac_address>[ens192] 00:50:56:a6:76:b8</mac_address> <item_no>1.6.1</item_no> <item_title>Ensure system wide crypto policy is not set to legacy</item_title> <result>pass</result> <result_code>0</result_code> <raw_data> <![CDATA[ [ok] Not Found: /etc/crypto-policies/config --> ^[ \t]*(\bLEGACY\b) # cat /etc/crypto-policies/config ... DEFAULT ]]> </raw_data> </items> <items> <status>ok</status> <datetime>2024-08-06 04:01:14</datetime> <auditor>password123456</auditor> <target>buddy2</target> <os_name>Rocky Linux 8.8 (Green Obsidian)</os_name> <os_version>8.8</os_version> <os_id>rocky</os_id> <os_architecture>x86_64</os_architecture> <ip_address>[ens192] 172.16.13.51</ip_address> <mac_address>[ens192] 00:50:56:a6:76:b8</mac_address> <item_no>1.6.2</item_no> <item_title>Ensure system wide crypto policy disables sha1 hash and signature support</item_title> <result>fault</result> <result_code>1</result_code> <raw_data> <![CDATA[ [vul] Found: /etc/crypto-policies/state/CURRENT.pol - found: ^[ \t]*(hash|sign)[ \t]*=[ \t]*([^\n\r#]+)?-sha1\b --> `ECDSA-SHA1,RSA-PSS-SHA1,RSA-SHA1` near at line: 13 # cat /etc/crypto-policies/state/CURRENT.pol ... 11: mac = AEAD HMAC-SHA2-256 HMAC-SHA1 UMAC-128 HMAC-SHA2-384 HMAC-SHA2-512 12: protocol = 13: sign = ECDSA-SHA3-256 ECDSA-SHA2-256 ECDSA-SHA3-384 ECDSA-SHA2-384 ECDSA-SHA3-512 ECDSA-SHA2-512 EDDSA-ED25519 EDDSA-ED448 RSA-PSS-SHA2- 256 RSA-PSS-SHA2-384 RSA-PSS-SHA2-512 RSA-SHA3-256 RSA-SHA2-256 RSA-SHA3-384 RSA-SHA2-384 RSA-SHA3-512 RSA-SHA2-512 ECDSA-SHA2-224 RSA-PSS-S HA2-224 RSA-SHA2-224 ECDSA-SHA1 RSA-PSS-SHA1 RSA-SHA1 14: arbitrary_dh_groups = 1 15: min_dh_size = 2048 [vul] Found: /etc/crypto-policies/state/CURRENT.pol - found: ^[ \t]*sha1_in_certs[ \t]*=[ \t]*(0|1)$ --> `1` near at line: 18 # cat /etc/crypto-policies/state/CURRENT.pol ... 16: min_dsa_size = 2048 17: min_rsa_size = 2048 18: sha1_in_certs = 1 19: ssh_certs = 1 20: ssh_etm = 1 ]]> </raw_data> </items> ... <items> <status>ok</status> <datetime>2024-08-06 04:01:38</datetime> <auditor>password123456</auditor> <target>buddy2</target> <os_name>Rocky Linux 8.7 (Green Obsidian)</os_name> <os_version>8.7</os_version> <os_id>rocky</os_id> <os_architecture>x86_64</os_architecture> <ip_address>[ens192] 172.16.13.51</ip_address> <mac_address>[ens192] 00:50:56:a6:4a:80</mac_address> <item_no>6.1.10</item_no> <item_title>Ensure permissions on /etc/shells are configured</item_title> <result>pass</result> <result_code>0</result_code> <raw_data> <![CDATA[ [ok] -rw-r--r-- 1 root root 44 Sep 10 20:51 /etc/shells - permissions: 644 - owner:group: root:root ]]> </raw_data> </items> </results>

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1. Возможности

2. Предпросмотр

3. Журнал результатов

4. Поддерживаемые ОС

5. Предварительные требования

6. Примечания

6.1. Зачем это сделано?

6.2. Советы по использованию

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