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V-838

CAT II (Medium)

The SMTP service log file must have mode 0644 or less permissive.

Rule ID

SV-45861r1_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 more permissive than 0644, unauthorized users may be allowed to change the log file.

Check Content

Check the mode of the SMTP service log file.

Procedure:
# more /etc/rsyslog.conf
Check the configuration to determine which log files contain logs for mail.crit, mail.debug, or *.crit.
Procedure:
# ls -lL <file location>
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 permissions 


If the log file permissions are greater than 0644, this is a finding.

Fix Text

Change the mode of the SMTP service log file.

Procedure:
The fix procedure is the same for both sendmail and Postfix.
# chmod 0644 <sendmail log file>