The network element must log all attempts to establish a management connection for administrative access.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-3070	NET1640	SV-15456r2_rule		Low

Description
Audit logs are necessary to provide a trail of evidence in case the network is compromised. Without an audit trail that provides a when, where, who and how set of information, repeat offenders could continue attacks against the network indefinitely. With this information, the network administrator can devise ways to block the attack and possibly identify and prosecute the attacker.

STIG	Date
Perimeter Router Security Technical Implementation Guide Juniper	2017-06-29

Details

Check Text ( C-12921r3_chk )
Review the router configurations and verify that all ssh connection attempts are logged. The configuration should look similar to the following: [edit interfaces] lo0 { unit 0 { family inet { filter { input protect-routing-engine; } address 192.168.1.2/32; } } } [edit firewall] family inet { filter protect-routing-engine { term terminal-access { from { source-address { 192.168.1.10; 192.168.1.11; } protocol tcp; port [ssh]; } then { syslog; accept; } } term default-action { then { syslog; discard; } } } }

Check Text ( C-12921r3_chk )

Review the router configurations and verify that all ssh connection attempts are logged. The configuration should look similar to the following:

[edit interfaces]
lo0 {
unit 0 {
family inet {
filter {
input protect-routing-engine;
}
address 192.168.1.2/32;
}
}
}
[edit firewall]
family inet {
filter protect-routing-engine {
term terminal-access {
from {
source-address {
192.168.1.10;
192.168.1.11;
}
protocol tcp;
port [ssh];
}
then {
syslog;
accept;
}
}
term default-action {
then {
syslog;
discard;
}
}
}
}

Fix Text (F-3095r3_fix)
Configure the device to log all access attempts to the device to establish a management connection for administrative access.