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V-837

CAT II (Medium)

The SMTP service log file must be owned by root.

Rule ID

SV-45859r1_rule

STIG

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

Version

V1R12

CCIs

CCI-000225

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 <file location>

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 <sendmail log file>