STIGQter: STIG Summary: Juniper EX Series Switches Router Security Technical Implementation Guide Version: 2 Release: 1 Benchmark Date: 24 Jul 2024:

The Juniper router must be configured to log all packets that have been dropped.

DISA Rule

SV-253998r844027_rule

Vulnerability Number

V-253998

Group Title

SRG-NET-000078-RTR-000001

Rule Version

JUEX-RT-000260

Severity

CAT III

CCI(s)

• CCI-000134 - Ensure that audit records containing information that establishes the outcome of the event.

Weight

10

Fix Recommendation

Configure interface firewall filters to log all deny statements.

All discarding firewall filter terms:
<filter terms and match conditions>
set firewall family inet filter <filter name> term <name> then log
set firewall family inet filter <filter name> term <name> then syslog <<< Minimally must be configured for all discarding filter terms.
set firewall family inet filter <filter name> term <name> then discard

<filter terms and match conditions>
set firewall family inet6 filter <filter name> term <name> then log
set firewall family inet6 filter <filter name> term <name> then syslog <<< Minimally must be configured for all discarding filter terms.
set firewall family inet6 filter <filter name> term <name> then discard

Check Contents

Review the router interface firewall filters to verify all deny statements are logged. At a minimum, all discarding filter terms must have the "syslog" action enabled.

Verify all discarding firewall filter terms are configured with (minimally) the "syslog" action:
[edit firewall]
family inet {
filter <filter name> {
term <name> {
from {
<match conditions>;
}
then {
log;
syslog; <<< Must be enabled for local and external syslog.
discard;
}
}
}
}
family inet6 {
filter <filter name> {
term <name> {
from {
<match conditions>;
}
then {
log;
syslog; <<< Must be enabled for local and external syslog.
discard;
}
}
}
}

If packets being dropped are not logged, this is a finding.

Vulnerability Number

V-253998

Documentable

False

Rule Version

JUEX-RT-000260

Severity Override Guidance

Review the router interface firewall filters to verify all deny statements are logged. At a minimum, all discarding filter terms must have the "syslog" action enabled.

Verify all discarding firewall filter terms are configured with (minimally) the "syslog" action:
[edit firewall]
family inet {
filter <filter name> {
term <name> {
from {
<match conditions>;
}
then {
log;
syslog; <<< Must be enabled for local and external syslog.
discard;
}
}
}
}
family inet6 {
filter <filter name> {
term <name> {
from {
<match conditions>;
}
then {
log;
syslog; <<< Must be enabled for local and external syslog.
discard;
}
}
}
}

If packets being dropped are not logged, this is a finding.

Check Content Reference

M

Target Key

5479