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


Overview

Finding ID Version Rule ID IA Controls Severity
V-835 GEN004440 SV-45856r2_rule Low
Description
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.
STIG Date
SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide 2018-09-19

Details

Check Text ( C-43153r2_chk )
If the “sendmail” package is not installed, this is not applicable.

Check if the sendmail package is installed:
# rpm –q sendmail
If it is installed, the logging level must be 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 (F-39239r1_fix)
Edit the sendmail.conf file, locate the "O L" or "LogLevel" entry and change it to 9.