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 have Internet Control Message Protocol (ICMP) redirects disabled on all external interfaces.

DISA Rule

SV-254036r844141_rule

Vulnerability Number

V-254036

Group Title

SRG-NET-000362-RTR-000115

Rule Version

JUEX-RT-000640

Severity

CAT II

CCI(s)

• CCI-002385 - Protect against or limit the effects of organization-defined types of denial of service events.

Weight

10

Fix Recommendation

Disable ICMP redirects on all external interfaces.

set system no-redirects

set interfaces <external interface name> unit <number> family inet no-redirects
set interfaces <external interface name> unit <number> family inet6 no-redirects

Check Contents

Review the device configuration to determine if controls have been defined to ensure the router does not send ICMP Redirect messages out to any external interfaces.

Verify the global "no-redirects" statement is enabled under [edit system] or that individual interface "no-redirects" statements are configured on external interfaces.
[edit system]
no-redirects;
[edit interfaces]
<external interface name> {
unit <number> {
family inet {
no-redirects;
address <IPv4 address>.<mask>;
}
family inet6 {
no-redirects;
address <IPv6 address>.<prefix>;
}
}
}

If ICMP Redirect messages are enabled on any external interfaces, this is a finding.

Vulnerability Number

V-254036

Documentable

False

Rule Version

JUEX-RT-000640

Severity Override Guidance

Review the device configuration to determine if controls have been defined to ensure the router does not send ICMP Redirect messages out to any external interfaces.

Verify the global "no-redirects" statement is enabled under [edit system] or that individual interface "no-redirects" statements are configured on external interfaces.
[edit system]
no-redirects;
[edit interfaces]
<external interface name> {
unit <number> {
family inet {
no-redirects;
address <IPv4 address>.<mask>;
}
family inet6 {
no-redirects;
address <IPv6 address>.<prefix>;
}
}
}

If ICMP Redirect messages are enabled on any external interfaces, this is a finding.

Check Content Reference

M

Target Key

5479