The Juniper EX switch must be configured to generate audit records when concurrent logons from different workstations occur.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-253936	JUEX-NM-000590	SV-253936r961833_rule		Medium

Description

Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the network device (e.g., module or policy filter).

STIG	Date
Juniper EX Series Switches Network Device Management Security Technical Implementation Guide	2025-03-07

Details

Check Text (C-57388r843839_chk)

Determine if the network device generates audit records when concurrent logons from different workstations occur.

Junos logs all logon attempts via the "authorization" syslog facility. Verify logging level "any info" or "authorization info" is configured. Time stamps are created for every log entry, both successful and failed logon attempts, and logout.

[edit system syslog]
file <file name> {
any info;
}
host <external syslog address> {
any info;
}
time-format year millisecond;

Syslog outputs in standard format unless the "structured-data" directive is configured. Verify the "structured-data" command for all files and external syslog servers requiring that format. For example:

[edit system syslog]
host <syslog address> {
change-log info;
interactive-commands info;
structured-data;
}
file <file name> {
any info;
structured-data;
}

If the network device does not generate audit records when concurrent logons from different workstations occur, this is a finding.

Fix Text (F-57339r843840_fix)

Configure the network device to generate audit records when concurrent logons from different workstations occur.

set system syslog file <file name> any info
set system syslog host <external syslog address> any info
set system syslog time-format year