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The telnet daemon must not be running.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-24386 | GEN003850 | SV-37444r1_rule | DCPP-1 | High |
| Description |
|---|
| The telnet daemon provides a typically 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 log on using this service, the privileged user password could be compromised. |
| STIG | Date |
|---|---|
| Red Hat Enterprise Linux 5 Security Technical Implementation Guide | 2015-06-12 |
Details
| Check Text ( C-36116r2_chk ) |
|---|
| The telnet service included in the RHEL distribution is part of krb5-workstation. There are two versions of telnetd server provided. The xinetd.d file ekrb5-telnet allows only connections authenticated through kerberos. The xinetd.d krb5-telnet allows normal telnet connections as well as kerberized connections. Both are set to "disable = yes" by default. Ensure that neither is running. Procedure: Check if telnetd is running: # ps -ef |grep telnetd If the telnet daemon is running, this is a finding. Check if telnetd is enabled on startup: # chkconfig --list|grep telnet If an entry with "on" is found, this is a finding. |
| Fix Text (F-31362r2_fix) |
|---|
| Identify the telnet service running and disable it. Procedure: Disable the telnet server. # chkconfig telnet off Verify the telnet daemon is no longer running. # ps -ef |grep telnet |