Nutanix AOS must allocate audit record storage capacity to store at least one week's worth of audit records, when audit records are not immediately sent to a central audit record storage facility.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-254178	NUTX-OS-000760	SV-254178r846622_rule		Medium

Description
To ensure operating systems have a sufficient storage capacity in which to write the audit logs, operating systems must be able to allocate audit record storage capacity. The task of allocating audit record storage capacity is usually performed during initial installation of the operating system.

STIG	Date
Nutanix AOS 5.20.x OS Security Technical Implementation Guide	2022-08-24

Details

Check Text ( C-57663r846620_chk )
Confirm Nutanix AOS preconfigures storage for one week's worth of audit records, when audit records are not immediately sent to a central audit record facility. $ sudo cat /boot/grub/grub.conf | grep audit_backlog_limit audit_backlog_limit=8192 If the "audit_backlog_limit" entry does not equal "8192", is missing, or the line is commented out, this is a finding.

Fix Text (F-57614r846621_fix)
As root, modify the /boot/grub/grub.conf file to include the following line: audit_backlog_limit=8192