The Cisco ISE must limit audit record storage capacity for all locally stored logs.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-242626	CSCO-NM-000200	SV-242626r879730_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 ISE NDM Security Technical Implementation Guide	2023-05-05

Details

Check Text ( C-45901r714186_chk )
Examine the local log purge setting. show logging internal or Choose Administration >> System >> Logging >> Local Log Settings >> Local Log Storage Period. If local logs are set to purge after a locally established period, this is not a finding.

Fix Text (F-45858r714187_fix)
Configure syslog purge settings. Use the following process to delete local logs after a certain period of time. This is set based on the local environment and size of the implementation. 1. Choose Administration >> System >> Logging >> Local Log Settings. 2. In the Local Log Storage Period field, enter the maximum number of days to keep the log entries in the configuration source. 3. Click "Delete Logs Now" to delete the existing log files at any time before the expiration of the storage period. 4. Click "Save". Note: The system is designed to delete logs if the size of the localStore folder reaches 97 GB, regardless of the configured Local Log Storage Period.

Fix Text (F-45858r714187_fix)

Configure syslog purge settings. Use the following process to delete local logs after a certain period of time. This is set based on the local environment and size of the implementation.

1. Choose Administration >> System >> Logging >> Local Log Settings.
2. In the Local Log Storage Period field, enter the maximum number of days to keep the log entries in the configuration source.
3. Click "Delete Logs Now" to delete the existing log files at any time before the expiration of the storage period.
4. Click "Save".

Note: The system is designed to delete logs if the size of the localStore folder reaches 97 GB, regardless of the configured Local Log Storage Period.