ansible-lockdown/RHEL9-CIS
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updates

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Signed-off-by: Mark Bolwell <mark.bollyuk@gmail.com>
This commit is contained in:
Mark Bolwell 2022-03-30 16:34:33 +01:00
parent c6caa90059
commit 19a218390d
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GPG key ID: F734FDFC154B83FB
6 changed files with 22 additions and 21 deletions
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7
templates/etc/sysctl.d/60-disable_ipv6.conf.j2 Normal file
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# Setting added via ansible CIS remediation playbook
# IPv6 disable
{% if rhel9cis_rule_3_1_1 and rhel9cis_ipv6_required %}
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
{% endif %}

8
templates/etc/sysctl.d/60-kernel_sysctl.conf.j2 Normal file
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# Setting added via ansible CIS remediation playbook
{% if rhel9cis_rule_1_5_3 %}
# Kernel sysctl
# CIS 1.5.3
kernel.randomize_va_space = 2
{% endif %}

64
templates/etc/sysctl.d/99-sysctl.conf.j2 Normal file
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# Setting added via ansible CIS remediation playbook
# Network sysctl
{% if rhel9cis_rule_3_2_1 %}
# CIS 3.2.1
net.ipv4.ip_forward = 0
{% if rhel9cis_rule_3_2_1 and rhel9cis_ipv6_required %}
net.ipv6.conf.all.forwarding = 0
{% endif %}
{% endif %}
{% if rhel9cis_rule_3_2_2 %}
# CIS 3.2.2
net.ipv4.conf.all.send_redirects = 0
net.ipv4.conf.default.send_redirects = 0
{% endif %}
{% if rhel9cis_rule_3_3_1 %}
# CIS 3.3.1
net.ipv4.conf.all.accept_source_route = 0
net.ipv4.conf.default.accept_source_route = 0
{% if rhel9cis_rule_3_3_1 and rhel9cis_ipv6_required %}
net.ipv6.conf.all.accept_source_route = 0
net.ipv6.conf.default.accept_source_route = 0
{% endif %}
{% endif %}
{% if rhel9cis_rule_3_3_2 %}
# CIS 3.3.2
net.ipv4.conf.all.accept_redirects = 0
net.ipv4.conf.default.accept_redirects = 0
{% if rhel9cis_rule_3_3_2 and rhel9cis_ipv6_required %}
net.ipv6.conf.all.accept_redirects = 0
net.ipv6.conf.default.accept_redirects = 0
{% endif %}
{% endif %}
{% if rhel9cis_rule_3_3_3 %}
# CIS 3.3.3
net.ipv4.conf.all.secure_redirects = 0
net.ipv4.conf.default.secure_redirects = 0
{% endif %}
{% if rhel9cis_rule_3_3_4 %}
# CIS 3.3.4
net.ipv4.conf.all.log_martians = 1
net.ipv4.conf.default.log_martians = 1
{% endif %}
{% if rhel9cis_rule_3_3_5 %}
# CIS 3.3.5
net.ipv4.icmp_echo_ignore_broadcasts = 1
{% endif %}
{% if rhel9cis_rule_3_3_6 %}
# CIS 3.3.6
net.ipv4.icmp_ignore_bogus_error_responses = 1
{% endif %}
{% if rhel9cis_rule_3_3_7 %}
# CIS 3.3.7
net.ipv4.conf.default.rp_filter = 1
{% endif %}
{% if rhel9cis_rule_3_3_8 %}
# CIS 3.3.8
net.ipv4.tcp_syncookies = 1
{% endif %}
{% if rhel9cis_rule_3_3_9 %}
# CIS 3.3.9
net.ipv6.conf.all.accept_ra = 0
net.ipv6.conf.default.accept_ra = 0
{% endif %}