AlmaLinux OS 9 must not have the telnet-server package installed.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-269337 | ALMA-09-029060 | SV-269337r1050219_rule | CCI-000381 | medium |
| Description | ||||
| It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities are often overlooked and therefore, may remain unsecure. They increase the risk to the platform by providing additional attack vectors. The telnet service provides an unencrypted remote access service, which does not provide for the confidentiality and integrity of user passwords or the remote session. If a privileged user were to login using this service, the privileged user password could be compromised. Removing the "telnet-server" package decreases the risk of accidental (or intentional) activation of the telnet service. | ||||
| STIG | Date | |||
| CloudLinux AlmaLinux OS 9 Security Technical Implementation Guide | 2025-05-22 | |||
Details
Check Text (C-269337r1050219_chk)
Verify that the telnet-server package is not installed with the following command:
$ dnf list --installed telnet-server
Error: No matching Packages to list
If the "telnet-server" package is installed, this is a finding.
Fix Text (F-73269r1048388_fix)
Remove the telnet-server package with the following command:
$ dnf remove telnet-server