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AlmaLinux OS 9 must not have any telnet packages installed.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-269404ALMA-09-037860SV-269404r1050287_ruleCCI-000197high
Description
Passwords must be protected at all times, and encryption is the standard method for protecting passwords. If passwords are not encrypted, they can be plainly read (i.e., clear text) and easily compromised. A telnet server provides an unencrypted remote access mechanism that does not protect the confidentiality of user credentials or the remote session. If a privileged user were to log on using this service, the privileged user password could be compromised. SSH or other encrypted session methods must be used instead. Removing the server and client packages prevents inbound and outbound communications from being compromised.
STIGDate
Cloud Linux AlmaLinux OS 9 Security Technical Implementation Guide2026-02-27

Related Frameworks

1 mapping across 4 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (3) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

IAC-10Authenticator Management
0.50
IAC-10.1Password-Based Authentication
0.50
IAC-10.4Automated Support For Password Strength
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (58) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-17(1)Monitoring and Control
1.00
AC-17(2)Protection of Confidentiality and Integrity Using Encryption
1.00
AC-2(1)Automated System Account Management
1.00
AC-2(10)Shared and Group Account Credential Change
1.00
AC-2(11)Usage Conditions
1.00
AC-2(2)Automated Temporary and Emergency Account Management
1.00
AC-2(3)Disable Accounts
1.00
AC-2(4)Automated Audit Actions
1.00
AC-3Access Enforcement
1.00
AC-4Information Flow Enforcement
1.00

+48 more (top 10 by confidence shown)

NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (4) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

3.5.10
1.00
3.5.7
1.00
3.5.8
1.00
3.5.9
1.00
CCI1 mapping
CCI-000197
1.00

Details

Check Text (C-269404r1050287_chk)

Verify that AlmaLinux OS 9 does not have a telnet client or server package installed with the following command: $ rpm -qa | grep telnet If the "telnet-server" server or "telnet" client packages are installed, this is a finding. Note that there may be third-party or alternative packages that provide the same functionality, which should also be removed.

Fix Text (F-73336r1048589_fix)

Remove the default telnet client and server packages using the following command: $ dnf remove telnet-server telnet