mirror of
https://github.com/inspec/inspec
synced 2024-11-26 14:40:26 +00:00
86 lines
2.5 KiB
Ruby
86 lines
2.5 KiB
Ruby
# encoding: utf-8
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# copyright: 2015, Vulcano Security GmbH
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require 'shellwords'
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module Inspec::Resources
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class MysqlSession < Inspec.resource(1)
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name 'mysql_session'
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supports platform: 'unix'
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supports platform: 'windows'
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desc 'Use the mysql_session InSpec audit resource to test SQL commands run against a MySQL database.'
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example "
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sql = mysql_session('my_user','password','host')
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describe sql.query('show databases like \'test\';') do
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its('stdout') { should_not match(/test/) }
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end
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"
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def initialize(user = nil, pass = nil, host = 'localhost', port = nil, socket = nil)
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@user = user
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@pass = pass
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@host = host
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@port = port
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@socket = socket
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init_fallback if user.nil? or pass.nil?
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skip_resource("Can't run MySQL SQL checks without authentication") if @user.nil? or @pass.nil?
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end
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def query(q, db = '')
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mysql_cmd = create_mysql_cmd(q, db)
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cmd = inspec.command(mysql_cmd)
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out = cmd.stdout + "\n" + cmd.stderr
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if out =~ /Can't connect to .* MySQL server/ || out.downcase =~ /^error /
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# skip this test if the server can't run the query
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warn("Can't connect to MySQL instance for SQL checks.")
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end
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# return the raw command output
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cmd
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end
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def to_s
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'MySQL Session'
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end
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private
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def escape_string(query)
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Shellwords.escape(query)
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end
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def create_mysql_cmd(q, db = '')
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# TODO: simple escape, must be handled by a library
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# that does this securely
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escaped_query = q.gsub(/\\/, '\\\\').gsub(/"/, '\\"').gsub(/\$/, '\\$')
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# construct the query
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command = 'mysql'
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command += " -u#{escape_string(@user)}" unless @user.nil?
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command += " -p#{escape_string(@pass)}" unless @pass.nil?
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if !@socket.nil?
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command += " -S #{@socket}"
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else
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command += " -h #{@host}"
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end
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command += " --port #{@port}" unless @port.nil?
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command += " #{db}" unless db.empty?
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command += %{ -s -e "#{escaped_query}"}
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command
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end
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def init_fallback
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# support debian mysql administration login
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return if inspec.platform.in_family?('windows')
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debian = inspec.command('test -f /etc/mysql/debian.cnf && cat /etc/mysql/debian.cnf').stdout
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return if debian.empty?
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user = debian.match(/^\s*user\s*=\s*([^ ]*)\s*$/)
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pass = debian.match(/^\s*password\s*=\s*([^ ]*)\s*$/)
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return if user.nil? or pass.nil?
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@user = user[1]
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@pass = pass[1]
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end
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end
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end
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