The DNS implementation must prevent unauthorized and unintended information transfer via shared system resources.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-34139	SRG-NET-000190-DNS-000116	SV-44592r1_rule		Medium

Description
The purpose of this control is to prevent information, produced by the actions of a prior process (or the actions of a process acting on behalf of a prior user) from being available to any current DNS process that obtains access to a shared system resource (e.g., registers, main memory, secondary storage) after the resource has been released back to the information system. Control of information in shared resources is also referred to as object reuse.

Description

The purpose of this control is to prevent information, produced by the actions of a prior process (or the actions of a process acting on behalf of a prior user) from being available to any current DNS process that obtains access to a shared system resource (e.g., registers, main memory, secondary storage) after the resource has been released back to the information system. Control of information in shared resources is also referred to as object reuse.

STIG	Date
Domain Name System (DNS) Security Requirements Guide	2012-10-24

Details

Check Text ( C-42099r1_chk )
Review the DNS vendor documentation and system configuration to determine if object reuse is protected. If object reuse is not protected, this is a finding.

Fix Text (F-38049r1_fix)
Configure the DNS system to protect object reuse to prevent unauthorized and unintended information transfer via shared system resources.