The firewall implementation must isolate security functions from non-security functions.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
SRG-NET-000184-FW-000112	SRG-NET-000184-FW-000112	SRG-NET-000184-FW-000112_rule		Medium

Description
The firewall implementation must be designed and configured to isolate security functions from non-security functions. An isolation boundary is implemented via partitions and domains. This boundary must provide separation between processes having different security levels. These processes are used by the hardware, software, and firmware of the firewall to perform various functions. The firewall application must maintain a separate execution domain (e.g., address space) for each executing process to minimize the risk of leakage or corruption of privileged information. This control is normally a function of the firewall application design and is usually not a configurable setting; however, there may be settings in some firewall applications that must be configured to optimize function isolation.

Description

The firewall implementation must be designed and configured to isolate security functions from non-security functions. An isolation boundary is implemented via partitions and domains. This boundary must provide separation between processes having different security levels. These processes are used by the hardware, software, and firmware of the firewall to perform various functions. The firewall application must maintain a separate execution domain (e.g., address space) for each executing process to minimize the risk of leakage or corruption of privileged information. This control is normally a function of the firewall application design and is usually not a configurable setting; however, there may be settings in some firewall applications that must be configured to optimize function isolation.

STIG	Date
Firewall Security Requirements Guide	2012-12-10

Details

Check Text ( C-SRG-NET-000184-FW-000112_chk )
Verify the application is designed to separate security functions from non-security functions (i.e., separate address space) for executing processes. If the system is not designed to isolate security functions from non-security functions, this is a finding.

Fix Text (F-SRG-NET-000184-FW-000112_fix)
Enable settings that isolate security functions from non-security functions.