-
Notifications
You must be signed in to change notification settings - Fork 134
/
Copy pathdefault.rb
226 lines (207 loc) · 10.6 KB
/
default.rb
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
# encoding: utf-8
#
# Cookbook Name:: os-hardening
# Attributes:: default
#
# Copyright 2012, Dominik Richter
# Copyright 2014, Deutsche Telekom AG
#
# 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.
# Define the packages based on operating system
case node['platform_family']
when 'rhel', 'fedora', 'amazon'
default['os-hardening']['packages']['pam_ccreds'] = 'pam_ccreds'
default['os-hardening']['packages']['pam_passwdqc'] = 'pam_passwdqc'
default['os-hardening']['packages']['pam_cracklib'] = 'pam_cracklib'
default['os-hardening']['packages']['pam_pwquality'] = 'libpwquality'
default['os-hardening']['packages']['auditd'] = 'audit'
default['os-hardening']['yum']['gpg_exclude'] = []
if node['platform_version'].to_f < 7
default['os-hardening']['auth']['pam']['passwdqc']['enable'] = true
default['os-hardening']['auth']['pam']['pwquality']['enable'] = false
else
default['os-hardening']['auth']['pam']['passwdqc']['enable'] = false
default['os-hardening']['auth']['pam']['pwquality']['enable'] = true
end
when 'debian'
default['os-hardening']['packages']['pam_ccreds'] = 'libpam-ccreds'
default['os-hardening']['packages']['pam_passwdqc'] = 'libpam-passwdqc'
default['os-hardening']['packages']['pam_cracklib'] = 'libpam-cracklib'
default['os-hardening']['packages']['auditd'] = 'auditd'
when 'arch'
default['os-hardening']['packages']['pam_ccreds'] = 'pam_ccreds'
default['os-hardening']['packages']['pam_passwdqc'] = 'pam_passwdqc'
default['os-hardening']['packages']['pam_cracklib'] = 'pam_cracklib'
default['os-hardening']['packages']['auditd'] = 'audit'
else
default['os-hardening']['packages']['pam_ccreds'] = 'pam_ccreds'
default['os-hardening']['packages']['pam_passwdqc'] = 'pam_passwdqc'
default['os-hardening']['packages']['pam_cracklib'] = 'pam_cracklib'
default['os-hardening']['packages']['auditd'] = 'audit'
end
# rhel, centos autoconf configuration
default['os-hardening']['authconfig']['shadow']['enable'] = true
default['os-hardening']['authconfig']['md5']['enable'] = true
default['config_disclaimer'] = '**Note:** This file was automatically created by dev-sec.io os-hardening configuration. If you use its automated setup, do not edit this file directly, but adjust the automation instead.'
default['os-hardening']['desktop']['enable'] = false
default['os-hardening']['network']['forwarding'] = false
default['os-hardening']['network']['ipv6']['enable'] = false
default['os-hardening']['network']['arp']['restricted'] = true
default['os-hardening']['env']['extra_user_paths'] = []
default['os-hardening']['env']['root_path'] = '/'
default['os-hardening']['auth']['pw_max_age'] = 60
default['os-hardening']['auth']['pw_min_age'] = 7 # discourage password cycling
default['os-hardening']['auth']['pw_warn_age'] = 7
default['os-hardening']['auth']['retries'] = 5
default['os-hardening']['auth']['lockout_time'] = 600 # 10min
default['os-hardening']['auth']['timeout'] = 60
default['os-hardening']['auth']['allow_homeless'] = false
default['os-hardening']['auth']['pam']['passwdqc']['options'] = 'min=disabled,disabled,16,12,8'
default['os-hardening']['auth']['pam']['cracklib']['options'] = 'try_first_pass retry=3 type='
default['os-hardening']['auth']['pam']['pwquality']['options'] = 'try_first_pass retry=3 type='
default['os-hardening']['auth']['pam']['tally2']['template_cookbook'] = 'os-hardening'
default['os-hardening']['auth']['pam']['passwdqc']['template_cookbook'] = 'os-hardening'
default['os-hardening']['auth']['pam']['system-auth']['template_cookbook'] = 'os-hardening'
default['os-hardening']['auth']['root_ttys'] = %w[console tty1 tty2 tty3 tty4 tty5 tty6]
default['os-hardening']['auth']['uid_min'] = 1000
default['os-hardening']['auth']['gid_min'] = 1000
default['os-hardening']['auth']['sys_uid_max'] = 999
default['os-hardening']['auth']['sys_gid_max'] = 999
# RH has a bit different defaults on some places
case node['platform_family']
when 'rhel', 'amazon'
default['os-hardening']['env']['umask'] = '077'
default['os-hardening']['auth']['sys_uid_min'] = 201
default['os-hardening']['auth']['sys_gid_min'] = 201
else
default['os-hardening']['env']['umask'] = '027'
default['os-hardening']['auth']['sys_uid_min'] = 100
default['os-hardening']['auth']['sys_gid_min'] = 100
end
# may contain: change_user
default['os-hardening']['security']['users']['allow'] = []
default['os-hardening']['security']['kernel']['enable_module_loading'] = true
default['os-hardening']['security']['kernel']['disable_filesystems'] = %w[cramfs freevxfs jffs2 hfs hfsplus squashfs udf vfat]
default['os-hardening']['security']['kernel']['enable_sysrq'] = false
default['os-hardening']['security']['kernel']['enable_core_dump'] = false
default['os-hardening']['security']['suid_sgid']['enforce'] = true
# user-defined blacklist and whitelist
default['os-hardening']['security']['suid_sgid']['blacklist'] = []
default['os-hardening']['security']['suid_sgid']['whitelist'] = []
# if this is true, remove any suid/sgid bits from files that were not in the
# whitelist
default['os-hardening']['security']['suid_sgid']['remove_from_unknown'] = false
default['os-hardening']['security']['suid_sgid']['dry_run_on_unknown'] = false
# Allow interactive startup (rhel, centos)
default['os-hardening']['security']['init']['prompt'] = true
# Require root password for single user mode. (rhel, centos)
default['os-hardening']['security']['init']['single'] = false
# remove packages with known issues
default['os-hardening']['security']['packages']['clean'] = true
# list of packages with known issues
default['os-hardening']['security']['packages']['list'] = [
'xinetd',
'inetd',
'ypserv',
'telnet-server',
'rsh-server'
]
# SELinux enforcing (enforcing, permissive, unmanaged)
default['os-hardening']['security']['selinux_mode'] = 'unmanaged'
# SYSTEM CONFIGURATION
# ====================
# These are not meant to be modified by the user
# misc
default['os-hardening']['security']['kernel']['secure_sysrq'] = 4 + 16 + 32 + 64 + 128
# suid and sgid blacklists and whitelists
# ---------------------------------------
# don't change values in the system_blacklist/whitelist
# adjust values for blacklist/whitelist instead, they can override system_blacklist/whitelist
# list of suid/sgid entries that must be removed
default['os-hardening']['security']['suid_sgid']['system_blacklist'] = [
# blacklist as provided by NSA
'/usr/bin/rcp', '/usr/bin/rlogin', '/usr/bin/rsh',
# sshd must not use host-based authentication (see ssh cookbook)
'/usr/libexec/openssh/ssh-keysign',
'/usr/lib/openssh/ssh-keysign',
# misc others
'/sbin/netreport', # not normally required for user
'/usr/sbin/usernetctl', # modify interfaces via functional accounts
# connecting to ...
'/usr/sbin/userisdnctl', # no isdn...
'/usr/sbin/pppd', # no ppp / dsl ...
# lockfile
'/usr/bin/lockfile',
'/usr/bin/mail-lock',
'/usr/bin/mail-unlock',
'/usr/bin/mail-touchlock',
'/usr/bin/dotlockfile',
# need more investigation, blacklist for now
'/usr/bin/arping',
'/usr/sbin/uuidd',
'/usr/bin/mtr', # investigate current state...
'/usr/lib/evolution/camel-lock-helper-1.2', # investigate current state...
'/usr/lib/pt_chown', # pseudo-tty, needed?
'/usr/lib/eject/dmcrypt-get-device',
'/usr/lib/mc/cons.saver' # midnight commander screensaver
]
# list of suid/sgid entries that can remain untouched
default['os-hardening']['security']['suid_sgid']['system_whitelist'] = [
# whitelist as provided by NSA
'/bin/mount', '/bin/ping', '/bin/su', '/bin/umount', '/sbin/pam_timestamp_check',
'/sbin/unix_chkpwd', '/usr/bin/at', '/usr/bin/gpasswd', '/usr/bin/locate',
'/usr/bin/newgrp', '/usr/bin/passwd', '/usr/bin/ssh-agent', '/usr/libexec/utempter/utempter', '/usr/sbin/lockdev',
'/usr/sbin/sendmail.sendmail', '/usr/bin/expiry',
# whitelist ipv6
'/bin/ping6', '/usr/bin/traceroute6.iputils',
# whitelist nfs
'/sbin/mount.nfs', '/sbin/umount.nfs',
# whitelist nfs4
'/sbin/mount.nfs4', '/sbin/umount.nfs4',
# whitelist cron
'/usr/bin/crontab',
# whitelist consolemssaging
'/usr/bin/wall', '/usr/bin/write',
# whitelist: only SGID with utmp group for multi-session access
# impact is limited; installation/usage has some remaining risk
'/usr/bin/screen',
# whitelist locate
'/usr/bin/mlocate',
# whitelist usermanagement
'/usr/bin/chage', '/usr/bin/chfn', '/usr/bin/chsh',
# whitelist fuse
'/bin/fusermount',
# whitelist pkexec
'/usr/bin/pkexec',
# whitelist sudo
'/usr/bin/sudo', '/usr/bin/sudoedit',
# whitelist postfix
'/usr/sbin/postdrop', '/usr/sbin/postqueue',
# whitelist apache
'/usr/sbin/suexec',
# whitelist squid
'/usr/lib/squid/ncsa_auth', '/usr/lib/squid/pam_auth',
# whitelist kerberos
'/usr/kerberos/bin/ksu',
# whitelist pam_caching
'/usr/sbin/ccreds_validate',
# whitelist Xorg
'/usr/bin/Xorg', # xorg
'/usr/bin/X', # xorg
'/usr/lib/dbus-1.0/dbus-daemon-launch-helper', # freedesktop ipc
'/usr/lib/vte/gnome-pty-helper', # gnome
'/usr/lib/libvte9/gnome-pty-helper', # gnome
'/usr/lib/libvte-2.90-9/gnome-pty-helper' # gnome
]
# set default cpu vendor
default['os-hardening']['security']['cpu_vendor'] = 'intel'