The Cisco router must be configured to allocate audit record storage capacity in accordance with organization-defined audit record storage requirements.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-96443	CISC-ND-000980	SV-105581r1_rule		Medium

Description
In order to ensure network devices have a sufficient storage capacity in which to write the audit logs, they need to be able to allocate audit record storage capacity. The task of allocating audit record storage capacity is usually performed during initial device setup if it is modifiable. The value for the organization-defined audit record storage requirement will depend on the amount of storage available on the network device, the anticipated volume of logs, the frequency of transfer from the network device to centralized log servers, and other factors.

Description

In order to ensure network devices have a sufficient storage capacity in which to write the audit logs, they need to be able to allocate audit record storage capacity. The task of allocating audit record storage capacity is usually performed during initial device setup if it is modifiable. The value for the organization-defined audit record storage requirement will depend on the amount of storage available on the network device, the anticipated volume of logs, the frequency of transfer from the network device to centralized log servers, and other factors.

STIG	Date
Cisco IOS XR Router NDM Security Technical Implementation Guide	2020-06-04

Details

Check Text ( C-95279r1_chk )
Verify that the Cisco router is configured with a logging buffer size as well as on the hard drive. The configuration should look like the example below: logging archive device harddisk severity notifications file-size 10 archive-size 100 … … … logging buffered 8888888 If a logging buffer size and the archive size is not configured, this is a finding. If the Cisco router is not configured to allocate audit record storage capacity in accordance with organization-defined audit record storage requirements, this is a finding.

Check Text ( C-95279r1_chk )

Verify that the Cisco router is configured with a logging buffer size as well as on the hard drive. The configuration should look like the example below:

logging archive
device harddisk
severity notifications
file-size 10
archive-size 100
…
…
…
logging buffered 8888888

If a logging buffer size and the archive size is not configured, this is a finding.

If the Cisco router is not configured to allocate audit record storage capacity in accordance with organization-defined audit record storage requirements, this is a finding.

Fix Text (F-102119r1_fix)
Configure the logging buffer size as well as the active log file size and the amount of storage to be reserved for archive log files as shown in the example below. RP/0/0/CPU0:R3(config)#logging buffered 8888888 RP/0/0/CPU0:R3(config)#logging archive RP/0/0/CPU0:R3(config-logging-arch)#severity notifications RP/0/0/CPU0:R3(config-logging-arch)#device harddisk RP/0/0/CPU0:R3(config-logging-arch)#archive-size 100 RP/0/0/CPU0:R3(config-logging-arch)#file-size 10 RP/0/0/CPU0:R3(config-logging-arch)#end

Fix Text (F-102119r1_fix)

Configure the logging buffer size as well as the active log file size and the amount of storage to be reserved for archive log files as shown in the example below.

RP/0/0/CPU0:R3(config)#logging buffered 8888888
RP/0/0/CPU0:R3(config)#logging archive
RP/0/0/CPU0:R3(config-logging-arch)#severity notifications
RP/0/0/CPU0:R3(config-logging-arch)#device harddisk
RP/0/0/CPU0:R3(config-logging-arch)#archive-size 100
RP/0/0/CPU0:R3(config-logging-arch)#file-size 10
RP/0/0/CPU0:R3(config-logging-arch)#end