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V-206681

The firewall must generate traffic log entries containing information to establish the source of the events, such as the source IP address at a minimum.

Finding ID
SRG-NET-000077-FW-000012
Rule ID
SV-206681r604133_rule
Severity
Cat III
CCE
(None)
Group Title
SRG-NET-000077
CCI
CCI-000133
Target Key
(None)
Documentable
No
Discussion

Without establishing the source of the event, it is impossible to establish, correlate, and investigate the events leading up to an outage or attack. In order to compile an accurate risk assessment and provide forensic analysis, security personnel need to know the source of the event. In addition to logging where events occur within the network, the traffic log events must also identify sources of events, such as IP addresses, processes, and node or device names.

Fix Text

Configure the firewall implementation to ensure entries sent to the traffic log include sufficient information to ascertain the source of each event (e.g., IP address, session, or packet ID).

Check Content

Examine the traffic log configuration on the firewall or view several alert events on the organization's central audit server. Verify the entries sent to the traffic log include sufficient information to ascertain the source of the events (e.g., IP address, session, or packet ID). If the traffic log entries do not include sufficient information to ascertain the source of the events, this is a finding.