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criticalservicesverified rollback-safe

Ensure telnet-server package is not installed

pkg-telnet-server-absent · UBUNTU ≥ 22, RHEL ≥ 8 · 2 impls

Description

The telnet-server package provides the telnet daemon which allows remote logins using the insecure telnet protocol. This package must not be installed.

Rationale

Telnet transmits all data including authentication credentials in cleartext. The telnet server must not be installed as it provides an insecure remote access mechanism.

Check → Remediate

Checkpackage_state
name:
telnet-server
state:
absent
Remediatepackage_absent
name:
telnet-server

Framework references

STIG

V-280944 / RHEL-10-200020V-257831 / RHEL-09-215040V-230487V-270647 / UBTU-24-100030V-260483 / UBTU-22-215035

NIST 800-53

CM-7SC-8IA-5

Live verification

rhel8:checkrhel9:checkubuntu22:checkubuntu24:checkubuntu26:check
#package#telnet#server#attack-surface