Title

The system syslog service must log informational and more severe SMTP service messages. (Cat II impact)

Discussion

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

Check Content

The syslog.conf file critical mail logging option line will typically appear as one of the following examples: mail.crit /var/adm/messages mail.* /var/adm/messages *.* /var/adm/messages *.crit /var/adm/messages Check the syslog configuration file for mail.crit logging configuration. # cat /etc/syslog.conf | tr '\011' ' ' | tr -s ' ' | sed -e 's/^[ \t]*//' | grep -v "^#" | egrep -i "mail.crit|mail.\*|\*.crit|\*.\*" If syslog is not configured to log critical sendmail messages, this is a finding.

Fix Text

Edit the syslog.conf file and add a configuration line specifying an appropriate destination for critical "mail" syslogs, for example: mail.crit /var/adm/messages mail.* /var/adm/messages *.* /var/adm/messages *.crit /var/adm/messages

Additional Identifiers

Rule ID: SV-35051r1_rule

Vulnerability ID: V-836

Group Title: GEN004460

Expert Comments

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