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https://github.com/inspec/inspec
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126 lines
3 KiB
Ruby
126 lines
3 KiB
Ruby
# encoding: utf-8
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# copyright: 2015, Vulcano Security GmbH
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# author: Christoph Hartmann
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# author: Dominik Richter
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# license: All rights reserved
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# The file format consists of
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# - username
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# - password
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# - userid
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# - groupid
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# - user id info
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# - home directory
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# - command
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require 'utils/parser'
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class Passwd < Inspec.resource(1)
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name 'passwd'
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desc 'Use the passwd InSpec audit resource to test the contents of /etc/passwd, which contains the following information for users that may log into the system and/or as users that own running processes.'
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example "
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describe passwd do
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its('users') { should_not include 'forbidden_user' }
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end
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describe passwd.uids(0) do
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its('users') { should cmp 'root' }
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its('count') { should eq 1 }
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end
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describe passwd.shells(/nologin/) do
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# find all users with a nologin shell
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its('users') { should_not include 'my_login_user' }
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end
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"
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include PasswdParser
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attr_reader :uid
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attr_reader :params
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attr_reader :content
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attr_reader :lines
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def initialize(path = nil, opts = nil)
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opts ||= {}
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@path = path || '/etc/passwd'
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@content = opts[:content] || inspec.file(@path).content
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@lines = @content.to_s.split("\n")
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@filters = opts[:filters] || ''
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@params = parse_passwd(@content)
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end
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def filter(hm = {})
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return self if hm.nil? || hm.empty?
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res = @params
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filters = ''
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hm.each do |attr, condition|
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condition = condition.to_s if condition.is_a? Integer
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filters += " #{attr} = #{condition.inspect}"
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res = res.find_all do |line|
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case line[attr.to_s]
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when condition
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true
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else
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false
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end
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end
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end
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content = res.map { |x| x.values.join(':') }.join("\n")
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Passwd.new(@path, content: content, filters: @filters + filters)
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end
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def usernames
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warn '[DEPRECATION] `passwd.usernames` is deprecated. Please use `passwd.users` instead. It will be removed in version 1.0.0.'
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users
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end
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def username
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warn '[DEPRECATION] `passwd.user` is deprecated. Please use `passwd.users` instead. It will be removed in version 1.0.0.'
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users[0]
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end
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def uid(x)
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warn '[DEPRECATION] `passwd.uid(arg)` is deprecated. Please use `passwd.uids(arg)` instead. It will be removed in version 1.0.0.'
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uids(x)
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end
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def users(name = nil)
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name.nil? ? map_data('user') : filter(user: name)
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end
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def passwords(password = nil)
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password.nil? ? map_data('password') : filter(password: password)
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end
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def uids(uid = nil)
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uid.nil? ? map_data('uid') : filter(uid: uid)
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end
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def gids(gid = nil)
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gid.nil? ? map_data('gid') : filter(gid: gid)
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end
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def homes(home = nil)
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home.nil? ? map_data('home') : filter(home: home)
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end
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def shells(shell = nil)
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shell.nil? ? map_data('shell') : filter(shell: shell)
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end
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def to_s
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f = @filters.empty? ? '' : ' with'+@filters
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"/etc/passwd#{f}"
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end
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def count
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@params.length
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end
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private
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def map_data(id)
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@params.map { |x| x[id] }
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end
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end
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