STIGQter: STIG Summary: Cisco IOS XE Router RTR Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 23 Apr 2021:

The Cisco router must be configured to produce audit records containing information to establish the source of the events.

DISA Rule

SV-216660r531086_rule

Vulnerability Number

V-216660

Group Title

SRG-NET-000077-RTR-000001

Rule Version

CISC-RT-000220

Severity

CAT II

CCI(s)

CCI-000133 - The information system generates audit records containing information that establishes the source of the event.

Weight

Fix Recommendation

Configure the router to log events containing information to establish where the events occurred as shown in the example below:

R5(config)#ip access-list extended INGRESS_FILTER
…
…
…
R5(config-ext-nacl)#deny ip any any log-input

Check Contents

Review the router configuration to verify that events are logged containing information to establish the source of the events as shown in the example below:

ip access-list extended INGRESS_FILTER
permit tcp any any established
permit tcp host x.11.1.1 eq bgp host x.11.1.2
permit tcp host x.11.1.1 host x.11.1.2 eq bgp
permit tcp any host x.11.1.5 eq www
permit icmp host x.11.1.1 host x.11.1.2 echo
permit icmp any any echo-reply
…
…
…
deny ip any any log-input

Note: When the log-input parameter is configured on deny statements, the log record will contain the layer 2 address of the forwarding device for any packet being dropped.

If the router is not configured to produce audit records containing information to establish the source of the events, this is a finding.

The Cisco router must be configured to produce audit records containing information to establish the source of the events.

DISA Rule

Vulnerability Number

Group Title

Rule Version

Severity

CCI(s)

Weight

Fix Recommendation

Check Contents

Vulnerability Number

Documentable

Rule Version

Severity Override Guidance

Check Content Reference

Target Key

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