The Juniper router must be configured to produce audit records containing information to establish the source of the events.
An XCCDF Rule
Description
<VulnDiscussion>Without establishing the source of the event, it is impossible to establish, correlate, and investigate the events leading up to an outage or attack. 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 audit records must also identify sources of events such as IP addresses, processes, and node or device names.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-253997r844024_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
Configure the router to record the source address in the log record for packets being dropped.
Example firewall filter with logging enabled:
set firewall family inet filter <filter name> term 1 from <match conditions>
set firewall family inet filter <filter name> term 1 then log
set firewall family inet filter <filter name> term 1 then syslog <<< Must be enabled for all discarding terms