The system syslog service must log informational and more severe SMTP service messages.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-240440	VRAU-SL-000595	SV-240440r671061_rule		Medium

Description
If informational and more severe SMTP service messages are not logged, malicious activity on the system may go unnoticed.

STIG	Date
VMware vRealize Automation 7.x SLES Security Technical Implementation Guide	2023-09-22

Details

Check Text ( C-43673r671059_chk )
Check the /etc/syslog-ng/syslog-ng.conf for the following log entries: filter f_mailinfo { level(info) and facility(mail); }; filter f_mailwarn { level(warn) and facility(mail); }; filter f_mailerr { level(err, crit) and facility(mail); }; filter f_mail { facility(mail); }; If present, this is not a finding.

Fix Text (F-43632r671060_fix)
Edit the /etc/syslog-ng/syslog-ng.conf file and add the following log entries: filter f_mailinfo { level(info) and facility(mail); }; filter f_mailwarn { level(warn) and facility(mail); }; filter f_mailerr { level(err, crit) and facility(mail); }; filter f_mail { facility(mail); }; destination mailinfo { file("/var/log/mail.info"); }; log { source(src); filter(f_mailinfo); destination(mailinfo); }; destination mailwarn { file("/var/log/mail.warn"); }; log { source(src); filter(f_mailwarn); destination(mailwarn); }; destination mailerr { file("/var/log/mail.err" fsync(yes)); }; log { source(src); filter(f_mailerr); destination(mailerr); };

Fix Text (F-43632r671060_fix)

Edit the /etc/syslog-ng/syslog-ng.conf file and add the following log entries:

filter f_mailinfo { level(info) and facility(mail); };
filter f_mailwarn { level(warn) and facility(mail); };
filter f_mailerr { level(err, crit) and facility(mail); };
filter f_mail { facility(mail); };

destination mailinfo { file("/var/log/mail.info"); };
log { source(src); filter(f_mailinfo); destination(mailinfo); };

destination mailwarn { file("/var/log/mail.warn"); };
log { source(src); filter(f_mailwarn); destination(mailwarn); };

destination mailerr { file("/var/log/mail.err" fsync(yes)); };
log { source(src); filter(f_mailerr); destination(mailerr); };