Class: VpcCriticalPortsAudit::CheckingSensiblePorts

Inherits:
CriticalPortsAuditState show all
Defined in:
lib/scripts/ec2/vpc_critical_ports_audit.rb

Overview

Security groups retrieved. Start analysing them.

Instance Attribute Summary

Attributes inherited from ScriptExecutionState

#context, #logger

Instance Method Summary collapse

Methods inherited from CriticalPortsAuditState

load_state

Methods inherited from ScriptExecutionState

#done?, #end_state, #failed?, #initialize, #register_state_change_listener, #start_state_machine, #to_s

Methods included from StateTransitionHelper

#attach_volume, #check_string_alnum, #connect, #copy_distribution, #create_fs, #create_image_from_instance, #create_labeled_fs, #create_snapshot, #create_volume, #create_volume_from_snapshot, #delete_snapshot, #delete_volume, #describe_instance, #detach_volume, #determine_file, #disable_ssh_tty, #disconnect, #ec2_handler, #ec2_handler=, #enable_ssh_tty, #get_aws_kernel_image_aki, #get_aws_region_from_endpoint, #get_partition_fs_type, #get_partition_fs_type_and_label, #get_partition_label, #get_root_device_name, #get_root_partition_fs_type, #get_root_partition_fs_type_and_label, #get_root_partition_label, #get_root_volume_id, #launch_instance, #local_decompress_and_dump_file_to_device, #local_dump_and_compress_device_to_file, #local_dump_device_to_file, #local_dump_file_to_device, #mount_fs, #mount_fs_old, #register_snapshot, #remote_copy, #remote_copy_old, #remote_handler, #remote_handler=, #retrieve_instances, #retrieve_security_groups, #shut_down_instance, #snapshot_accessible, #start_instance, #stop_instance, #unmount_fs, #upload_file, #zip_volume

Methods included from VCloudTransitionHelper

#retrieve_ip_services

Constructor Details

This class inherits a constructor from ScriptExecutionState

Instance Method Details

#enter ⇒ Object 



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# File 'lib/scripts/ec2/vpc_critical_ports_audit.rb', line 54

def enter
  @context[:result][:affected_groups] = []
  @context[:security_groups]['securityGroupInfo']['item'].each() do |group_info|
    #check only VPC SecurityGroups
    next if group_info['vpcId'].nil? || group_info['vpcId'].empty? 
    post_message("checking VPC SecurityGroup '#{group_info['groupName']}'...")
    vpc = @context[:ec2_api_handler].describe_vpcs(:vpc_id => group_info['vpcId'])
    vpc_ref = "" 
    vpc_item = vpc['vpcSet']['item'][0]
    if !vpc_item['name'].nil? && !vpc_item['name'].empty?
      vpc_ref = vpc_item['name']
    else
      #XXX: shold be the same as "group_info['vpcId']"
      vpc_ref = vpc_item['vpcId']
    end
    igw = @context[:ec2_api_handler].describe_internetgateways()
    igw_ref = ""
    found = false
    igw['internetGatewaySet']['item'].each {|igw_item|
      break if found == true
      igw_id = igw_item['internetGatewayId']
      igw_item['attachmentSet']['item'].each {|vpc_item|
        if vpc_item['vpcId'].eql?("#{group_info['vpcId']}")
          igw_ref = igw_id
          found = true
          break
        end
      }
    }
    next if group_info['ipPermissions'] == nil || group_info['ipPermissions']['item'] == nil
    group_info['ipPermissions']['item'].each() do |permission_info|
      logger.debug("permission_info = #{permission_info.inspect}")
      next unless permission_info['groups'] == nil #ignore access rights to other groups
      next unless permission_info['ipRanges']['item'][0]['cidrIp'] == "0.0.0.0/0"
      #now check if a critical port is within the port-range
      #XXX: allow to skip the 'critical port' options if nil
      if @context[:critical_ports] == nil || @context[:critical_ports].empty?
        port = nil
        if permission_info['fromPort'].to_i == permission_info['toPort'].to_i
          port = permission_info['fromPort'].to_i
          post_message("=> found unique port: #{port}")
        end
        @context[:result][:affected_groups] << {:name => group_info['groupName'],
              :from =>  permission_info['fromPort'], :to => permission_info['toPort'], 
              :concerned => port, :prot => permission_info['ipProtocol'], 
              :vpc_ref => vpc_ref, :igw_ref => igw_ref}
        post_message("=> found at least one port publicly opened")
      else
        @context[:critical_ports].each() do |port|
          if permission_info['fromPort'].to_i <= port && permission_info['toPort'].to_i >= port
            @context[:result][:affected_groups] << {:name => group_info['groupName'],
              :from => permission_info['fromPort'], :to => permission_info['toPort'], 
              :concerned => port, :prot => permission_info['ipProtocol'], 
              :vpc_ref => vpc_ref, :igw_ref => igw_ref}
            post_message("=> found publically accessible port range that contains "+
                "critical port for group #{group_info['groupName']}: #{permission_info['fromPort']}-#{permission_info['toPort']}")
          end
        end
      end
    end
  end
  Done.new(@context)
end