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reduce max startups in accordance with current cis benchmark #231

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reduce max startups in accordance with current cis benchmark #231

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87997bd
Add max_startup parameter
emmanuelCarre Jun 15, 2020
83403f1
reduce max startups in accordance with current cis benchmark
bdwyertech Jan 13, 2021
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3 changes: 2 additions & 1 deletion README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -70,7 +70,8 @@ override['ssh-hardening']['ssh']['server']['listen_to'] = node['ipaddress']
* `['ssh-hardening']['ssh']['server']['use_privilege_separation']` - `nil` to calculate the best value based on server version, otherwise set `true` or `false`
* `['ssh-hardening']['ssh']['server']['login_grace_time']` - `30s`. Time in which the login should be successfully, otherwise the user is disconnected.
* `['ssh-hardening']['ssh']['server']['max_auth_tries']` - `2`. The number of authentication attempts per connection
* `['ssh-hardening']['ssh']['server']['max_sessions']` - `10` The number of sessions per connection
* `['ssh-hardening']['ssh']['server']['max_sessions']` - `10`. The number of sessions per connection
* `['ssh-hardening']['ssh']['server']['max_startups']` - `10:30:60`. The maximum number of concurrent unauthenticated connections to the SSH daemon.
* `['ssh-hardening']['ssh']['server']['password_authentication']` - `false`. Set to `true` if password authentication should be enabled
* `['ssh-hardening']['ssh']['server']['log_level']` - `verbose`. The log level of sshd. See `LogLevel` in `man 5 sshd_config` for possible values.
* `['ssh-hardening']['ssh']['server']['sftp']['enable']` - `false`. Set to `true` to enable the SFTP feature of OpenSSH daemon
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1 change: 1 addition & 0 deletions attributes/default.rb
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Expand Up @@ -113,6 +113,7 @@
server['login_grace_time'] = '30s'
server['max_auth_tries'] = 2
server['max_sessions'] = 10
server['max_startups'] = '10:30:60'
server['password_authentication'] = false
server['log_level'] = 'verbose'
server['accept_env'] = ['LANG', 'LC_*', 'LANGUAGE']
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2 changes: 1 addition & 1 deletion templates/default/opensshd.conf.erb
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Expand Up @@ -95,7 +95,7 @@ PermitUserEnvironment no
LoginGraceTime <%= @node['ssh-hardening']['ssh']['server']['login_grace_time'] %>
MaxAuthTries <%= @node['ssh-hardening']['ssh']['server']['max_auth_tries'] %>
MaxSessions <%= @node['ssh-hardening']['ssh']['server']['max_sessions'] %>
MaxStartups 10:30:100
MaxStartups <%= @node['ssh-hardening']['ssh']['server']['max_startups'] %>

# Enable public key authentication
PubkeyAuthentication yes
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