Any operating system providing too much information in error messages risks compromising the data and security of the structure, and content of error messages must be carefully considered by the organization.
Organizations carefully consider the structure/content of error messages. The extent to which information systems are able to identify and handle error conditions is guided by organizational policy and operational requirements. Information that could be exploited by adversaries includes, for example, erroneous logon attempts with passwords entered by mistake as the username, mission/business information that can be derived from (if not stated explicitly by) information recorded, and personal information, such as account numbers, social security numbers, and credit card numbers.
Check
Verify the /run/log/journal and /var/log/journal directories have permissions set to "640" or less permissive with the following command:
$ sudo find /run/log/journal /var/log/journal -type d -exec stat -c "%n %a" {} \; /run/log/journal 640 /var/log/journal 640 /var/log/journal/6a52424faa6e480ea5fc7346b9345792 640
If any output returned has a permission set greater than 640, this is a finding.
Verify all files in the /run/log/journal and /var/log/journal directories have permissions set to "640" or less permissive with the following command: