Merge "Add template for audit rules"
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@ -389,6 +389,39 @@ security_unattended_upgrades_notifications: false
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#security_audisp_remote_server: '10.0.21.1' # RHEL-07-030330
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# Encrypt audit records when they are transmitted over the network.
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#security_audisp_enable_krb5: yes # RHEL-07-030331
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# Rules for auditd are enabled if 'yes', disabled if 'no'. See the
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# documentation for each STIG control before enabling or disabling any rules.
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security_rhel7_audit_account_access: yes # RHEL-07-030492
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security_rhel7_audit_passwd_command: yes # RHEL-07-030510
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security_rhel7_audit_unix_chkpwd: yes # RHEL-07-030511
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security_rhel7_audit_gpasswd: yes # RHEL-07-030512
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security_rhel7_audit_chage: yes # RHEL-07-030513
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security_rhel7_audit_userhelper: yes # RHEL-07-030514
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security_rhel7_audit_su: yes # RHEL-07-030521
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security_rhel7_audit_sudo: yes # RHEL-07-030522
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security_rhel7_audit_sudo_config_changes: yes # RHEL-07-030523
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security_rhel7_audit_newgrp: yes # RHEL-07-030524
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security_rhel7_audit_chsh: yes # RHEL-07-030525
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security_rhel7_audit_sudoedit: yes # RHEL-07-030526
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security_rhel7_audit_mount: yes # RHEL-07-030530
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security_rhel7_audit_umount: yes # RHEL-07-030531
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security_rhel7_audit_postdrop: yes # RHEL-07-030540
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security_rhel7_audit_postqueue: yes # RHEL-07-030541
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security_rhel7_audit_ssh_keysign: yes # RHEL-07-030550
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security_rhel7_audit_pt_chown: yes # RHEL-07-030560
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security_rhel7_audit_crontab: yes # RHEL-07-030561
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security_rhel7_audit_pam_timestamp_check: yes # RHEL-07-030630
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security_rhel7_audit_init_module: yes # RHEL-07-030670
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security_rhel7_audit_delete_module: yes # RHEL-07-030671
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security_rhel7_audit_insmod: yes # RHEL-07-030672
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security_rhel7_audit_rmmod: yes # RHEL-07-030673
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security_rhel7_audit_modprobe: yes # RHEL-07-030674
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security_rhel7_audit_account_actions: yes # RHEL-07-030710
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security_rhel7_audit_rename: yes # RHEL-07-030750
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security_rhel7_audit_renameat: yes # RHEL-07-030751
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security_rhel7_audit_rmdir: yes # RHEL-07-030752
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security_rhel7_audit_unlink: yes # RHEL-07-030753
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security_rhel7_audit_unlinkat: yes # RHEL-07-030754
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## Authentication (auth)
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# Disallow logins from accounts with blank/null passwords via PAM.
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@ -13,6 +13,14 @@
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# See the License for the specific language governing permissions and
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# limitations under the License.
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- name: Verify that auditd.conf exists
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stat:
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path: /etc/audit/auditd.conf
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register: auditd_conf
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check_mode: no
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tags:
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- always
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- name: RHEL-07-030330 - The operating system must off-load audit records onto a different system or media from the system being audited
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lineinfile:
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dest: /etc/audisp/audisp-remote.conf
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@ -20,6 +28,7 @@
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line: "remote_server = {{ security_audisp_remote_server }}"
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when:
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- security_audisp_remote_server is defined
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- auditd_conf.stat.exists
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notify:
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- restart auditd
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tags:
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@ -34,9 +43,69 @@
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line: "enable_krb5 = yes"
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when:
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- security_audisp_enable_krb5 is defined
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- auditd_conf.stat.exists
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notify:
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- restart auditd
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tags:
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- medium
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- auditd
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- RHEL-07-030331
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- name: Get valid system architectures for audit rules
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set_fact:
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auditd_architectures: "{{ (ansible_architecture == 'ppc64le') | ternary(['ppc64'], ['b32', 'b64']) }}"
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check_mode: no
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tags:
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- always
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- name: Remove old RHEL 6 audit rules file
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file:
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path: /etc/audit/rules.d/osas-auditd.rules
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state: absent
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when:
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- auditd_conf.stat.exists
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notify:
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- generate auditd rules
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tags:
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- always
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- name: Deploy rules for auditd based on STIG requirements
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template:
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src: osas-auditd-rhel7.j2
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dest: /etc/audit/rules.d/osas-auditd-rhel7.rules
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when:
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- auditd_conf.stat.exists
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notify:
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- generate auditd rules
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tags:
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- auditd
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- RHEL-07-030492
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- RHEL-07-030510
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- RHEL-07-030511
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- RHEL-07-030512
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- RHEL-07-030513
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- RHEL-07-030514
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- RHEL-07-030521
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- RHEL-07-030522
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- RHEL-07-030523
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- RHEL-07-030524
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- RHEL-07-030525
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- RHEL-07-030526
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- RHEL-07-030530
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- RHEL-07-030531
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- RHEL-07-030540
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- RHEL-07-030541
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- RHEL-07-030550
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- RHEL-07-030560
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- RHEL-07-030561
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- RHEL-07-030630
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- RHEL-07-030670
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- RHEL-07-030671
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- RHEL-07-030672
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- RHEL-07-030673
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- RHEL-07-030674
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- RHEL-07-030750
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- RHEL-07-030751
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- RHEL-07-030752
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- RHEL-07-030753
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- RHEL-07-030754
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@ -27,6 +27,10 @@
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when:
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- not check_mode | bool
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# Package installations and removals must come first so that configuration
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# changes can be made later.
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- include: packages.yml
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# Package managers are managed first since the changes in these tasks will
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# affect the remainder of the tasks in the role.
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- include: apt.yml
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@ -39,10 +43,10 @@
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# each file are tagged with the same name (for example, tasks in `auth.yml`
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# are tagged with `auth`). Also, the tag name matches up with the "STIG
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# Controls by Tag" section of the role documentation.
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- include: auditd.yml
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- include: auth.yml
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- include: file_perms.yml
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- include: graphical.yml
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- include: packages.yml
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- include: sshd.yml
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- name: Remove the temporary directory
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179
templates/osas-auditd-rhel7.j2
Normal file
179
templates/osas-auditd-rhel7.j2
Normal file
@ -0,0 +1,179 @@
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{% if security_rhel7_audit_account_access | bool %}
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# RHEL-07-030492 - The operating system must generate audit records for all
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# successful account access events.
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-w /var/log/lastlog -p wa -k RHEL-07-030492
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{% endif %}
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{% if security_rhel7_audit_passwd_command | bool %}
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# RHEL-07-030510 - All uses of the passwd command must be audited.
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-a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=4294967295 -k RHEL-07-030510
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{% endif %}
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{% if security_rhel7_audit_unix_chkpwd | bool %}
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# RHEL-07-030511 - All uses of the unix_chkpwd command must be audited.
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-a always,exit -F path=/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=4294967295 -k RHEL-07-030511
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{% endif %}
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{% if security_rhel7_audit_gpasswd | bool %}
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# RHEL-07-030512 - All uses of the gpasswd command must be audited.
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-a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=4294967295 -k RHEL-07-030512
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{% endif %}
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{% if security_rhel7_audit_chage | bool %}
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# RHEL-07-030513 - All uses of the chage command must be audited.
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-a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=4294967295 -k RHEL-07-030513
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{% endif %}
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{% if security_rhel7_audit_userhelper | bool %}
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# RHEL-07-030514 - All uses of the userhelper command must be audited.
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-a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=4294967295 -k RHEL-07-030514
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{% endif %}
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{% if security_rhel7_audit_su | bool %}
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# RHEL-07-030521 - All uses of the su command must be audited.
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-a always,exit -F path=/bin/su -F perm=x -F auid>=1000 -F auid!=4294967295 -k RHEL-07-030521
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{% endif %}
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{% if security_rhel7_audit_sudo | bool %}
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# RHEL-07-030522 - All uses of the sudo command must be audited.
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-a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=4294967295 -k RHEL-07-030522
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{% endif %}
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{% if security_rhel7_audit_sudo_config_changes | bool %}
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# RHEL-07-030523 - The operating system must generate audit records containing the full-text recording of modifications to sudo configuration files.
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-w /etc/sudoers -p wa -k RHEL-07-030523
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-w /etc/sudoers.d/ -p wa -k RHEL-07-030523
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{% endif %}
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{% if security_rhel7_audit_newgrp | bool %}
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# RHEL-07-030524 - All uses of the newgrp command must be audited.
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-a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=4294967295 -k RHEL-07-030524
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{% endif %}
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{% if security_rhel7_audit_chsh | bool %}
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# RHEL-07-030525 - All uses of the chsh command must be audited.
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-a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=4294967295 -k RHEL-07-030525
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{% endif %}
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{% if security_rhel7_audit_sudoedit | bool %}
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# RHEL-07-030526 - All uses of the sudoedit command must be audited.
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-a always,exit -F path=/bin/sudoedit -F perm=x -F auid>=1000 -F auid!=4294967295 -k RHEL-07-030526
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{% endif %}
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{% if security_rhel7_audit_mount | bool %}
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# RHEL-07-030530 - All uses of the mount command must be audited.
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-a always,exit -F path=/bin/mount -F perm=x -F auid>=1000 -F auid!=4294967295 -k RHEL-07-030530
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{% endif %}
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{% if security_rhel7_audit_umount | bool %}
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# RHEL-07-030531 - All uses of the umount command must be audited.
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-a always,exit -F path=/bin/umount -F perm=x -F auid>=1000 -F auid!=4294967295 -k RHEL-07-030531
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{% endif %}
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{% if security_rhel7_audit_postdrop | bool %}
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# RHEL-07-030540 - All uses of the postdrop command must be audited.
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-a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=4294967295 -k RHEL-07-030540
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{% endif %}
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{% if security_rhel7_audit_postqueue | bool %}
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# RHEL-07-030541 - All uses of the postqueue command must be audited.
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-a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=4294967295 -k RHEL-07-030541
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{% endif %}
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{% if security_rhel7_audit_ssh_keysign | bool %}
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# RHEL-07-030550 - All uses of the ssh-keysign command must be audited.
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{% if ansible_os_family | lower == 'debian' %}
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-a always,exit -F path=/usr/lib/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=4294967295 -k RHEL-07-030550
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{% else %}
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-a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=4294967295 -k RHEL-07-030550
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{% endif %}
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{% endif %}
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{% if security_rhel7_audit_pt_chown | bool and ansible_os_family | lower == 'redhat' %}
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# RHEL-07-030560 - All uses of the pt_chown command must be audited.
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-a always,exit -F path=/usr/libexec/pt_chown -F perm=x -F auid>=1000 -F auid!=4294967295 -k RHEL-07-030560
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{% endif %}
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{% if security_rhel7_audit_crontab | bool %}
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# RHEL-07-030561 - All uses of the crontab command must be audited.
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-a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=4294967295 -k RHEL-07-030561
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{% endif %}
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{% if security_rhel7_audit_pam_timestamp_check | bool %}
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# RHEL-07-030630 - All uses of the pam_timestamp_check command must be audited.
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-a always,exit -F path=/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=4294967295 -F auid!=4294967295 -k RHEL-07-030630
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{% endif %}
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{% if security_rhel7_audit_init_module | bool %}
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# RHEL-07-030670 - All uses of the init_module command must be audited.
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{% for arch in auditd_architectures %}
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-a always,exit -F arch={{ arch }} -S init_module -k RHEL-07-030670
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{% endfor %}
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{% endif %}
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{% if security_rhel7_audit_delete_module | bool %}
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# RHEL-07-030671 - All uses of the delete_module command must be audited.
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{% for arch in auditd_architectures %}
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-a always,exit -F arch={{ arch }} -S delete_module -k RHEL-07-030671
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{% endfor %}
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{% endif %}
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{% if security_rhel7_audit_insmod | bool %}
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# RHEL-07-030672 - All uses of the insmod command must be audited.
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-w /sbin/insmod -p x -F auid!=4294967295 -k RHEL-07-030672
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{% endif %}
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{% if security_rhel7_audit_rmmod | bool %}
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# RHEL-07-030673 - All uses of the rmmod command must be audited.
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-w /sbin/rmmod -p x -F auid!=4294967295 -k RHEL-07-030673
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{% endif %}
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{% if security_rhel7_audit_modprobe | bool %}
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# RHEL-07-030674 - All uses of the modprobe command must be audited.
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-w /sbin/modprobe -p x -F auid!=4294967295 -k RHEL-07-030674
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{% endif %}
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{% if security_rhel7_audit_account_actions | bool %}
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# RHEL-07-030710 - The operating system must generate audit records for all
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# account creations, modifications, disabling, and termination events.
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-w /etc/group -p wa -k RHEL-07-030710
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-w /etc/passwd -p wa -k RHEL-07-030710
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-w /etc/gshadow -p wa -k RHEL-07-030710
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-w /etc/shadow -p wa -k RHEL-07-030710
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-w /etc/security/opasswd -p wa -k RHEL-07-030710
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{% endif %}
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{% if security_rhel7_audit_rename | bool %}
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# RHEL-07-030750 - All uses of the rename command must be audited.
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{% for arch in auditd_architectures %}
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-a always,exit -F arch={{ arch }} -S rename -F perm=x -F auid>=1000 -F auid!=4294967295 -k RHEL-07-030750
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{% endfor %}
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{% endif %}
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{% if security_rhel7_audit_renameat | bool %}
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# RHEL-07-030751 - All uses of the renameat command must be audited.
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{% for arch in auditd_architectures %}
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-a always,exit -F arch={{ arch }} -S renameat -F perm=x -F auid>=1000 -F auid!=4294967295 -k RHEL-07-030751
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{% endfor %}
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{% endif %}
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{% if security_rhel7_audit_rmdir | bool %}
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# RHEL-07-030752 - All uses of the rmdir command must be audited.
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{% for arch in auditd_architectures %}
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-a always,exit -F arch={{ arch }} -S rmdir -F perm=x -F auid>=1000 -F auid!=4294967295 -k RHEL-07-030752
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{% endfor %}
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{% endif %}
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{% if security_rhel7_audit_unlink | bool %}
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# RHEL-07-030753 - All uses of the unlink command must be audited.
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{% for arch in auditd_architectures %}
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-a always,exit -F arch={{ arch }} -S unlink -F perm=x -F auid>=1000 -F auid!=4294967295 -k RHEL-07-030753
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{% endfor %}
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{% endif %}
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{% if security_rhel7_audit_unlinkat | bool %}
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# RHEL-07-030754 - All uses of the unlinkat command must be audited.
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{% for arch in auditd_architectures %}
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-a always,exit -F arch={{ arch }} -S unlinkat -F perm=x -F auid>=1000 -F auid!=4294967295 -k RHEL-07-030754
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{% endfor %}
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{% endif %}
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