openstack-ansible-security/tasks/kernel.yml

95 lines
2.2 KiB
YAML

---
# Copyright 2015, Rackspace US, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
- name: V-38528 - The system must log martian packets
sysctl:
name: net.ipv4.conf.all.log_martians
value: 1
state: present
sysctl_set: yes
tags:
- kernel
- cat3
- V-38528
# This is the default in Ubuntu 14.04
- name: V-38537 - The system must ignore ICMPv4 bogus error responses
sysctl:
name: net.ipv4.icmp_ignore_bogus_error_responses
value: 1
state: present
sysctl_set: yes
tags:
- kernel
- cat3
- V-38537
# This is the default in Ubuntu 14.04
- name: V-38535 - The system must not respond to ICMPv4 sent to the broadcast address
sysctl:
name: net.ipv4.icmp_echo_ignore_broadcasts
value: 1
state: present
sysctl_set: yes
tags:
- kernel
- cat3
- V-38535
# This is the default in Ubuntu 14.04
- name: V-38596 - Enable virtual address space randomization
sysctl:
name: kernel.randomize_va_space
value: 2
state: present
sysctl_set: yes
tags:
- kernel
- cat2
- V-38596
- name: V-38600 - Disable sending ICMPv4 redirects
sysctl:
name: net.ipv4.conf.default.send_redirects
value: 0
state: present
sysctl_set: yes
tags:
- kernel
- cat2
- V-38600
- name: V-38601 - Disable sending ICMPv4 redirects on all interfaces
sysctl:
name: net.ipv4.conf.all.send_redirects
value: 0
state: present
sysctl_set: yes
tags:
- kernel
- cat2
- V-38601
- name: V-38490 - Disable usb-storage module
lineinfile:
dest: /etc/modprobe.d/disable-usb-storage.conf
line: "install usb-storage /bin/true"
create: yes
when: disable_usb_storage is defined and disable_usb_storage | bool
tags:
- kernel
- cat2
- V-38490