Title

RHEL 9 /var/log/messages file must have mode 0640 or less permissive. (Cat II impact)

Discussion

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 9 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.

Check Content

Verify the "/var/log/messages" file has a mode of "0640" or less permissive with the following command: $ ls -la /var/log/messages rw-------. 1 root root 564223 July 11 11:34 /var/log/messages If "/var/log/messages" does not have a mode of "0640" or less permissive, this is a finding.

Fix Text

Configure the "/var/log/messages" file to have a mode of "0640" by running the following command: $ sudo chmod 0640 /var/log/messages

Additional Identifiers

Rule ID: SV-257886r925645_rule

Vulnerability ID: V-257886

Group Title: SRG-OS-000206-GPOS-00084

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.