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https://github.com/inspec/inspec
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7bb7767dae
* Add nil check for sshd config file This fixes #1778. There was a issue where if the user did not have read permissions on /etc/ssh/sshd_config it would error out on the empty? check. The fix here is to also look for nil on the file content. Along with this I refactored the inspec file empty? check as it does not exist and was also erroring during my testing. Signed-off-by: Jared Quick <jquick@chef.io> * Add emptyfile test object and refactor tests Signed-off-by: Jared Quick <jquick@chef.io>
102 lines
2.7 KiB
Ruby
102 lines
2.7 KiB
Ruby
# encoding: utf-8
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# copyright: 2015, Vulcano Security GmbH
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# author: Dominik Richter
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# author: Christoph Hartmann
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require 'utils/simpleconfig'
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module Inspec::Resources
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class SshConf < Inspec.resource(1)
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name 'ssh_config'
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desc 'Use the `ssh_config` InSpec audit resource to test OpenSSH client configuration data located at `/etc/ssh/ssh_config` on Linux and Unix platforms.'
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example "
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describe ssh_config do
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its('cipher') { should contain '3des' }
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its('port') { should eq '22' }
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its('hostname') { should include('example.com') }
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end
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"
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def initialize(conf_path = nil, type = nil)
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@conf_path = conf_path || '/etc/ssh/ssh_config'
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typename = (@conf_path.include?('sshd') ? 'Server' : 'Client')
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@type = type || "SSH #{typename} configuration #{conf_path}"
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end
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def content
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read_content
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end
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def params(*opts)
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opts.inject(read_params) do |res, nxt|
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res.respond_to?(:key) ? res[nxt] : nil
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end
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end
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def convert_hash(hash)
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new_hash = {}
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hash.each do |k, v|
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new_hash[k.downcase] = v
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end
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new_hash
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end
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def method_missing(name)
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param = read_params[name.to_s.downcase]
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return nil if param.nil?
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# extract first value if we have only one value in array
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return param[0] if param.length == 1
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param
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end
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def to_s
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'SSH Configuration'
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end
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private
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def read_content
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return @content if defined?(@content)
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file = inspec.file(@conf_path)
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if !file.file?
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return skip_resource "Can't find file \"#{@conf_path}\""
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end
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@content = file.content
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if @content.nil? || (@content.empty? && !file.size.zero?)
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return skip_resource "Can't read file \"#{@conf_path}\""
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end
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@content
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end
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def read_params
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return @params if defined?(@params)
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return @params = {} if read_content.nil?
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conf = SimpleConfig.new(
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read_content,
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assignment_regex: /^\s*(\S+?)\s+(.*?)\s*$/,
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multiple_values: true,
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)
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@params = convert_hash(conf.params)
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end
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end
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class SshdConf < SshConf
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name 'sshd_config'
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desc 'Use the sshd_config InSpec audit resource to test configuration data for the Open SSH daemon located at /etc/ssh/sshd_config on Linux and UNIX platforms. sshd---the Open SSH daemon---listens on dedicated ports, starts a daemon for each incoming connection, and then handles encryption, authentication, key exchanges, command execution, and data exchanges.'
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example "
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describe sshd_config do
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its('Protocol') { should eq '2' }
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end
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"
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def initialize(path = nil)
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super(path || '/etc/ssh/sshd_config')
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end
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def to_s
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'SSHD Configuration'
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end
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end
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end
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