The HYCU virtual appliance must enforce approved authorizations for controlling the flow of management information within the appliance based on information flow control policies.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-268225	SRG-APP-000038-NDM-000213	HYCU-ND-000070	SV-268225r1038375_rule	2024-10-29	1

Description
A mechanism to detect and prevent unauthorized communication flow must be configured or provided as part of the system design. If management information flow is not enforced based on approved authorizations, the network device may become compromised. Information flow control regulates where management information is allowed to travel within a network device. The flow of all management information must be monitored and controlled so it does not introduce any unacceptable risk to the network device or data. Satisfies: SRG-APP-000038-NDM-000213, SRG-APP-000880-NDM-000290

Description

A mechanism to detect and prevent unauthorized communication flow must be configured or provided as part of the system design. If management information flow is not enforced based on approved authorizations, the network device may become compromised. Information flow control regulates where management information is allowed to travel within a network device. The flow of all management information must be monitored and controlled so it does not introduce any unacceptable risk to the network device or data. Satisfies: SRG-APP-000038-NDM-000213, SRG-APP-000880-NDM-000290

ℹ️ Check
Verify the firewall is running by executing the following command: sudo firewall-cmd --state If service is not running, this is a finding. Determine which services and ports are open by executing the following command: sudo firewall-cmd --list-all Output should show the following two lines: 'services: cockpit dhcpv6-client iscsi-target samba ssh' 'ports: 8443/tcp' If more services than those listed above are open, this is a finding.

ℹ️ Check

Verify the firewall is running by executing the following command: sudo firewall-cmd --state If service is not running, this is a finding. Determine which services and ports are open by executing the following command: sudo firewall-cmd --list-all Output should show the following two lines: 'services: cockpit dhcpv6-client iscsi-target samba ssh' 'ports: 8443/tcp' If more services than those listed above are open, this is a finding.

✔️ Fix
Enable the firewall by executing the following commands: sudo systemctl enable firewalld sudo systemctl start firewalld