DISA STIGS Viewer

Ubuntu 24.04 LTS must generate audit records for successful/unsuccessful uses of the mount command.

Overview

Finding ID Version Rule ID IA Controls Severity
V-270780 UBTU-24-900090 SV-270780r1066829_rule   Medium
Description
Without generating audit records specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter).
STIG Date
Canonical Ubuntu 24.04 LTS Security Technical Implementation Guide 2025-05-16

Details

Check Text (C-74813r1066827_chk)
Verify Ubuntu 24.04 LTS generates audit records upon successful/unsuccessful attempts to use the "mount" command with the following command:

$ sudo auditctl -l | grep /usr/bin/mount
-a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=-1 -k privileged-mount

If the command does not return lines that match the example or the lines are commented out, this is a finding.

Note: The "-k" allows for specifying an arbitrary identifier, and the string after it does not need to match the example output above.
Fix Text (F-74714r1066828_fix)
Configure the audit system to generate an audit event for any successful/unsuccessful use of the "mount" command.

Add or update the following rules in the "/etc/audit/rules.d/stig.rules" file:

-a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=-1 -k privileged-mount

To reload the rules file, issue the following command:

$ sudo augenrules --load