Title

The Cisco ASA must be configured to allocate audit record storage capacity in accordance with organization-defined audit record storage requirements. (Cat II impact)

Discussion

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.

Check Content

Verify the Cisco ASA is configured with a logfile size. The configuration should look like the example below. logging flash-bufferwrap logging flash-minimum-free nnnnnnn logging flash-maximum-allocation nnnnnnn If the Cisco ASA is not configured to allocate audit record storage capacity in accordance with organization-defined audit record storage requirements, this is a finding.

Fix Text

Configure the buffer size for logging as shown in the example below. ASA(config)# logging flash-maximum-allocation nnnnnnn ASA(config)# logging flash-minimum-free nnnnnnn

Additional Identifiers

Rule ID: SV-239922r879730_rule

Vulnerability ID: V-239922

Group Title: SRG-APP-000357-NDM-000293

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.