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The Ubuntu operating system must permit only authorized accounts to own the audit configuration files.


Finding ID Version Rule ID IA Controls Severity
V-219235 UBTU-18-010312 SV-219235r610963_rule Medium
Without the capability to restrict which roles and individuals can select which events are audited, unauthorized personnel may be able to prevent the auditing of critical events. Misconfigured audits may degrade the system's performance by overwhelming the audit log. Misconfigured audits may also make it more difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Canonical Ubuntu 18.04 LTS Security Technical Implementation Guide 2022-12-06


Check Text ( C-20960r305033_chk )
Verify that "/etc/audit/audit.rules", "/etc/audit/rules.d/*" and "/etc/audit/auditd.conf" files are owned by root account by using the following command:

# sudo ls -al /etc/audit/ /etc/audit/rules.d/


drwxr-x--- 3 root root 4096 Nov 25 11:02 .

drwxr-xr-x 130 root root 12288 Dec 19 13:42 ..

-rw-r----- 1 root root 804 Nov 25 11:01 auditd.conf

-rw-r----- 1 root root 9128 Dec 27 09:56 audit.rules

-rw-r----- 1 root root 9373 Dec 27 09:56 audit.rules.prev

-rw-r----- 1 root root 127 Feb 7 2018 audit-stop.rules

drwxr-x--- 2 root root 4096 Dec 27 09:56 rules.d


drwxr-x--- 2 root root 4096 Dec 27 09:56 .

drwxr-x--- 3 root root 4096 Nov 25 11:02 ..

-rw-r----- 1 root root 10357 Dec 27 09:56 stig.rules

If "/etc/audit/audit.rules" or "/etc/audit/rules.d/*" or "/etc/audit/auditd.conf" file is owned by a user other than "root", this is a finding.
Fix Text (F-20959r305034_fix)
Configure "/etc/audit/audit.rules", "/etc/audit/rules.d/*" and "/etc/audit/auditd.conf" files to be owned by root user by using the following command:

# chown root /etc/audit/audit*.{rules,conf} /etc/audit/rules.d/*

Note: The "root" account must be used to edit any files in the /etc/audit and /etc/audit/rules.d/ directories.