Check: UBTU-20-010135
Canonical Ubuntu 20.04 LTS STIG:
UBTU-20-010135
(in versions v1 r12 through v1 r1)
Title
The Ubuntu operating system must permit only authorized groups to own the audit configuration files. (Cat II impact)
Discussion
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.
Check Content
Verify that "/etc/audit/audit.rules", "/etc/audit/rules.d/*", and "/etc/audit/auditd.conf" files are owned by root group by using the following command: $ sudo ls -al /etc/audit/ /etc/audit/rules.d/ /etc/audit/: -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 /etc/audit/rules.d/: -rw-r----- 1 root root 10357 Dec 27 09:56 stig.rules If the "/etc/audit/audit.rules", "/etc/audit/rules.d/*", or "/etc/audit/auditd.conf" file is owned by a group other than "root", this is a finding.
Fix Text
Configure "/etc/audit/audit.rules", "/etc/audit/rules.d/*", and "/etc/audit/auditd.conf" files to be owned by root group by using the following command: $ sudo chown :root /etc/audit/audit*.{rules,conf} /etc/audit/rules.d/*
Additional Identifiers
Rule ID: SV-238251r653928_rule
Vulnerability ID: V-238251
Group Title: SRG-OS-000063-GPOS-00032
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000171 |
The information system allows organization-defined personnel or roles to select which auditable events are to be audited by specific components of the information system. |
Controls
Number | Title |
---|---|
AU-12 |
Audit Generation |