The ALG that is part of a CDS must apply information flow control to data transferred between security domains by means of a policy filter which consists of a set of hardware and/or software.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-54387	SRG-NET-000019-ALG-000021	SV-68633r1_rule		Medium

Description
Information flow control regulates where information is allowed to travel within a network and between interconnected networks. The flow of all network traffic must be monitored and controlled so it does not introduce any unacceptable risk to the network infrastructure or data. Apply information flow control to data transferred between security domains by means of a set of hardware and/or software, collectively known as the "filter". Flow control includes the inspection, sanitization, and/or rejection of data from one security domain prior to transfer of data to a different security domain. For an access type CDS, the remote desktop architecture provides the capability for a user to have access from a single device to computing platforms, applications, or data residing on multiple different security domains; while preventing any information flow between the different security domains.

Description

Information flow control regulates where information is allowed to travel within a network and between interconnected networks. The flow of all network traffic must be monitored and controlled so it does not introduce any unacceptable risk to the network infrastructure or data. Apply information flow control to data transferred between security domains by means of a set of hardware and/or software, collectively known as the "filter". Flow control includes the inspection, sanitization, and/or rejection of data from one security domain prior to transfer of data to a different security domain. For an access type CDS, the remote desktop architecture provides the capability for a user to have access from a single device to computing platforms, applications, or data residing on multiple different security domains; while preventing any information flow between the different security domains.

STIG	Date
Application Layer Gateway Security Requirements Guide	2014-11-03

Details

Check Text ( C-55003r1_chk )
If the ALG is not used as part of a CDS, this is not applicable. Verify the ALG applies information flow control to data transferred between security domains by means of a policy filter which consists of a set of hardware and/or software. If the ALG is not configured to apply information flow control to data transferred between security domains by means of a policy filter which consists of a set of hardware and/or software, this is a finding.

Check Text ( C-55003r1_chk )

If the ALG is not used as part of a CDS, this is not applicable.

Verify the ALG applies information flow control to data transferred between security domains by means of a policy filter which consists of a set of hardware and/or software.

If the ALG is not configured to apply information flow control to data transferred between security domains by means of a policy filter which consists of a set of hardware and/or software, this is a finding.

Fix Text (F-59241r1_fix)
If the ALG is used as part of a CDS, configure the ALG to apply information flow control to data transferred between security domains by means of a policy filter which consists of a set of hardware and/or software.