Sendmail logging must not be set to less than nine in the sendmail.cf file.

From Oracle Linux 5 Security Technical Implementation Guide

Associated with: CCI-000366

SV-63747r1_rule Sendmail logging must not be set to less than nine in the sendmail.cf file.

Vulnerability discussion

If Sendmail is not configured to log at level 9, system logs may not contain the information necessary for tracking unauthorized use of the sendmail service.

Check content

If the "sendmail" package is not installed, this is not applicable. Check if sendmail logging is set to level nine: Procedure: for sendmail: # grep "O L" /etc/mail/sendmail.cf OR # grep LogLevel /etc/mail/sendmail.cf If logging is set to less than nine, this is a finding. for Postfix: This rule is not applicable to postfix which does not use "log levels" in the same fashion as sendmail.

Fix text

Edit the sendmail.cf file, locate the "O L" or "LogLevel" entry and change it to 9.

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