The ICS must be configured to generate log records containing sufficient information about where, when, identity, source, or outcome of the events.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
low	V-258587	SRG-NET-000078-VPN-000290	IVCS-VN-000090	SV-258587r930449_rule	2024-06-10	2

Description
Without establishing when events occurred, it is impossible to establish, correlate, and investigate the events leading up to an outage or attack. VPN gateways often have a separate audit log for capturing VPN status and other information about the traffic (as opposed to the log capturing administrative and configuration actions). Associating event types with detected events in the network audit logs provides a means of investigating an attack, recognizing resource utilization or capacity thresholds, or identifying an improperly configured VPN gateway. Satisfies: SRG-NET-000078-VPN-000290, SRG-NET-000079-VPN-000300, SRG-NET-000088-VPN-000310, SRG-NET-000089-VPN-000330, SRG-NET-000091-VPN-000350, SRG-NET-000077-VPN-000280, SRG-NET-000313-VPN-001050, SRG-NET-000492-VPN-001980

Description

Without establishing when events occurred, it is impossible to establish, correlate, and investigate the events leading up to an outage or attack. VPN gateways often have a separate audit log for capturing VPN status and other information about the traffic (as opposed to the log capturing administrative and configuration actions). Associating event types with detected events in the network audit logs provides a means of investigating an attack, recognizing resource utilization or capacity thresholds, or identifying an improperly configured VPN gateway. Satisfies: SRG-NET-000078-VPN-000290, SRG-NET-000079-VPN-000300, SRG-NET-000088-VPN-000310, SRG-NET-000089-VPN-000330, SRG-NET-000091-VPN-000350, SRG-NET-000077-VPN-000280, SRG-NET-000313-VPN-001050, SRG-NET-000492-VPN-001980

ℹ️ Check
In the ICS Web UI, navigate to System >> Log/Monitoring >> User Access >> Settings. Under "Select Events to Log", verify all items are checked. If the ICS must be configured to generate log records containing information investigate the events, this is a finding.

✔️ Fix
In the ICS Web UI, navigate to System >> Log/Monitoring >> User Access >> Settings. 1. Under "Select Events to Log", check all items. 2. Set the standard filer. 3. Click "Add". 4. Click "Save Changes". Note: If the site uses SNMP, the configuration can be used in conjunction with this requirement which is recommended. By default, SNMP is disabled. The device only supports Simple Network Management Protocol version 3 (SNMPv3) in a DOD configuration. The device supports queries only, traps only, or both when enabling SNMP. Refer to SRG-NET-000335-VPN-001270 for configuration.

✔️ Fix

In the ICS Web UI, navigate to System >> Log/Monitoring >> User Access >> Settings. 1. Under "Select Events to Log", check all items. 2. Set the standard filer. 3. Click "Add". 4. Click "Save Changes". Note: If the site uses SNMP, the configuration can be used in conjunction with this requirement which is recommended. By default, SNMP is disabled. The device only supports Simple Network Management Protocol version 3 (SNMPv3) in a DOD configuration. The device supports queries only, traps only, or both when enabling SNMP. Refer to SRG-NET-000335-VPN-001270 for configuration.