The SMTP service log file must be owned by root.

From SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide

Associated with: CCI-000225

SV-45859r1_rule The SMTP service log file must be owned by root.

Vulnerability discussion

If the SMTP service log file is not owned by root, then unauthorized personnel may modify or delete the file to hide a system compromise.

Check content

Locate any mail log files by checking the syslog configuration file. Procedure: # more /etc/rsyslog.conf The check procedure is the same for both sendmail and Postfix. Identify any log files configured for the "mail" service (excluding mail.none) at any severity level and check the ownership Procedure: # ls -lL If any mail log file is not owned by root, this is a finding.

Fix text

Change the ownership of the sendmail log file. Procedure: The fix procedure is the same for both sendmail and Postfix. # chown root

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