The Cisco switch must be configured for authorized users to select a user session to capture.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-101119	CISC-L2-000060	SV-110223r1_rule		Medium

Description
Without the capability to select a user session to capture/record or view/hear, investigations into suspicious or harmful events would be hampered by the volume of information captured. The volume of information captured may also adversely impact the operation for the network. Session audits may include port mirroring, tracking websites visited, and recording information and/or file transfers.

STIG	Date
Cisco IOS Switch L2S Security Technical Implementation Guide	2020-05-07

Details

Check Text ( C-99999r1_chk )
Verify that the switch is capable of capturing ingress and egress packets from any designated switch port for the purpose of monitoring a specific user session. The example configuration below will capture packets from interface GigabitEthernet0/3 and replicate the packets to interface GigabitEthernet0/2: monitor session 1 source interface Gi0/3 monitor session 1 destination interface Gi0/2 If the switch is not capable of capturing ingress and egress packets from a designated switch port, this is a finding.

Check Text ( C-99999r1_chk )

Verify that the switch is capable of capturing ingress and egress packets from any designated switch port for the purpose of monitoring a specific user session.

The example configuration below will capture packets from interface GigabitEthernet0/3 and replicate the packets to interface GigabitEthernet0/2:

monitor session 1 source interface Gi0/3
monitor session 1 destination interface Gi0/2

If the switch is not capable of capturing ingress and egress packets from a designated switch port, this is a finding.

Fix Text (F-106823r1_fix)
Enable the feature or configure the switch so that it is capable of capturing ingress and egress packets from any designated switch port for the purpose of monitoring a specific user session. The example configuration below will capture packets from interface GigabitEthernet0/3 and replicate the packets to GigabitEthernet0/2: SW1(config)#monitor session 1 source int g0/3 SW1(config)#monitor session 1 destination int g0/2

Fix Text (F-106823r1_fix)

Enable the feature or configure the switch so that it is capable of capturing ingress and egress packets from any designated switch port for the purpose of monitoring a specific user session.

The example configuration below will capture packets from interface GigabitEthernet0/3 and replicate the packets to GigabitEthernet0/2:

SW1(config)#monitor session 1 source int g0/3
SW1(config)#monitor session 1 destination int g0/2