The Cisco ASA must be configured to generate an immediate real-time alert of all audit failure events requiring real-time alerts.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-239923	SRG-APP-000360-NDM-000295	CASA-ND-000930	SV-239923r991812_rule	2024-08-22	2

Description
It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required. Without a real-time alert, security personnel may be unaware of an impending failure of the audit capability and system operation may be adversely affected. Alerts provide organizations with urgent messages. Real-time alerts provide these messages immediately (i.e., the time from event detection to alert occurs in seconds or less).

Description

It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required. Without a real-time alert, security personnel may be unaware of an impending failure of the audit capability and system operation may be adversely affected. Alerts provide organizations with urgent messages. Real-time alerts provide these messages immediately (i.e., the time from event detection to alert occurs in seconds or less).

ℹ️ Check
Review the Cisco ASA configuration to verify it is compliant with this requirement as shown in the example below. logging trap critical logging host NDM_INTERFACE 10.1.48.10 Note: The parameter critical can replaced with a lesser severity (i.e., error, warning, notice, informational). A logging list can be used as an alternative to the severity level. If the Cisco ASA is not configured to generate an alert for all audit failure events, this is a finding.

ℹ️ Check

Review the Cisco ASA configuration to verify it is compliant with this requirement as shown in the example below. logging trap critical logging host NDM_INTERFACE 10.1.48.10 Note: The parameter critical can replaced with a lesser severity (i.e., error, warning, notice, informational). A logging list can be used as an alternative to the severity level. If the Cisco ASA is not configured to generate an alert for all audit failure events, this is a finding.

✔️ Fix
Configure the Cisco ASA to send critical to emergency log messages to the syslog server as shown in the example below. ASA(config)# logging host NDM_INTERFACE 10.1.48.10 ASA(config)# logging trap critical ASA(config)# end Note: The parameter critical can replaced with a lesser severity (i.e., error, warning, notice, informational).