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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-37497r2_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
Red Hat Enterprise Linux 5 Security Technical Implementation Guide 2017-03-01

Details

Check Text ( C-36154r3_chk )
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 (F-31405r2_fix)
Edit the sendmail.cf file, locate the "O L" or "LogLevel" entry and change it to 9.