Ubuntu OS must configure "/var/log/syslog" file to be owned by "syslog".

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 operating 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.

Verify that Ubuntu OS configures the "/var/log/syslog" file to be owned by "syslog" by using the following command:

     $ stat -c "%n %U" /var/log/syslog 
     /var/log/syslog  

If the "/var/log/syslog" file is not owned by "syslog", this is a finding.

Configure Ubuntu OS to have syslog own the "/var/log/syslog" file by using the following command:

     $ sudo chown syslog /var/log/syslog