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The RHEL 8 /var/log/messages file must be group-owned by root.


Finding ID Version Rule ID IA Controls Severity
V-230247 RHEL-08-010230 SV-230247r627750_rule Medium
Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an organization's operational state or can identify the RHEL 8 system or platform. Additionally, Personally Identifiable Information (PII) and operational information must not be revealed through error messages to unauthorized personnel or their designated representatives. The structure and content of error messages must be carefully considered by the organization and development team. The extent to which the information system is able to identify and handle error conditions is guided by organizational policy and operational requirements.
Red Hat Enterprise Linux 8 Security Technical Implementation Guide 2022-06-15


Check Text ( C-32916r567487_chk )
Verify the "/var/log/messages" file is group-owned by root with the following command:

$ sudo stat -c "%G" /var/log/messages


If "root" is not returned as a result, this is a finding.
Fix Text (F-32891r567488_fix)
Change the group of the file "/var/log/messages" to "root" by running the following command:

$ sudo chgrp root /var/log/messages