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V-269336

CAT II (Medium)

AlmaLinux OS 9 must not have the sendmail package installed.

Rule ID

SV-269336r1050218_rule

STIG

Cloud Linux AlmaLinux OS 9 Security Technical Implementation Guide

Version

V1R6

CCIs

CCI-000381

Discussion

The sendmail software was not developed with security in mind, and its design prevents it from being effectively contained by SELinux. Postfix must be used instead.

Check Content

Verify that the sendmail package is not installed with the following command:

$ dnf list --installed sendmail

Error: No matching Packages to list

If the "sendmail" package is installed, this is a finding.

Fix Text

Remove the sendmail package with the following command:

$ dnf remove sendmail