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

The Juniper multicast Rendezvous Point (RP) router must be configured to filter Protocol Independent Multicast (PIM) Register messages received from the Designated Router (DR) for any undesirable multicast groups and sources.

DISA Rule

SV-253994r844015_rule

Vulnerability Number

V-253994

Group Title

SRG-NET-000019-RTR-000013

Rule Version

JUEX-RT-000220

Severity

CAT III

CCI(s)

• CCI-001414 - Enforce approved authorizations for controlling the flow of information between connected systems based on organization-defined information flow control policies.

Weight

10

Fix Recommendation

Configure the RP router to filter PIM register messages received from a multicast DR for any undesirable multicast groups or sources.

set policy-options policy-statement <name> term filter_groups from route-filter <multicast address>/<mask> <match criterion>
set policy-options policy-statement <name> term filter_groups from route-filter <additional multicast address>/<mask> <match criterion>
set policy-options policy-statement <name> term filter_groups then reject

set policy-options policy-statement <name> term filter_source from source-address-filter <source address>/<mask> <match criterion>
set policy-options policy-statement <name> term filter_source from source-address-filter <additional source address>/<mask> <match criterion>
set policy-options policy-statement <name> term filter_source then reject

set policy-options policy-statement <name> term accept_others then accept

set protocols pim rp rp-register-policy <policy name>

Check Contents

Verify that the RP router is configured to filter PIM register messages from unauthorized multicast groups and sources.
[edit policy-options]
policy-statement <name> {
term filter_groups {
from {
route-filter <multicast address>/<mask> orlonger;
route-filter <multicast address>/<mask> exact;
<additional groups to filter>
}
then reject;
}
term filter_sources {
from {
source-address-filter <source host address>/32 exact;
source-address-filter <source subnet address>/<mask> orlonger;
<additional source addresses to filter>
}
then reject;
}
term accept_others {
then accept;
}
}

[edit protocols pim]
rp {
rp-register-policy <policy name>;
}

If the RP router peering with PIM-SM routers is not configured with a PIM import policy to block registration messages for any undesirable multicast groups and sources, this is a finding.

Vulnerability Number

V-253994

Documentable

False

Rule Version

JUEX-RT-000220

Severity Override Guidance

Verify that the RP router is configured to filter PIM register messages from unauthorized multicast groups and sources.
[edit policy-options]
policy-statement <name> {
term filter_groups {
from {
route-filter <multicast address>/<mask> orlonger;
route-filter <multicast address>/<mask> exact;
<additional groups to filter>
}
then reject;
}
term filter_sources {
from {
source-address-filter <source host address>/32 exact;
source-address-filter <source subnet address>/<mask> orlonger;
<additional source addresses to filter>
}
then reject;
}
term accept_others {
then accept;
}
}

[edit protocols pim]
rp {
rp-register-policy <policy name>;
}

If the RP router peering with PIM-SM routers is not configured with a PIM import policy to block registration messages for any undesirable multicast groups and sources, this is a finding.

Check Content Reference

M

Target Key

5479