TMA-FREEBSD-2.2.8

Ensure telnet server services are not in use

VisokaNivo 1Automatskafreebsd

Opis

The freebsd-telnetd package contains the telnet daemon, which accepts connections from users from other systems via the telnet protocol. The telnet protocol is insecure and unencrypted. The use of an unencrypted transmission medium could allow a user with access to sniff network traffic the ability to steal credentials. The ssh service provides an encrypted session and stronger security. Audit: telnet must not be enabled in /etc/inetd.conf (or freebsd-telnetd is not installed).

Kako se proverava

Metod provere: Komanda ljuske

shell

command -v grep >/dev/null 2>&1 || exit 1; out=$( { grep -E "^telnet[[:space:]]" /etc/inetd.conf ; } 2>/dev/null ); [ -z "$out" ] && echo compliant || printf '%s\n' "$out" | head -n 20

Očekivani izlaz: compliant

Kako se ispravlja

Metod ispravke: Smernica ili zakrpa infrastrukture

Run the following commands to stop and disable telnet: # sed -i '' -e 's|^telnet|#telnet|g' /etc/inetd.conf # service inetd restart -AND- -IF- a package is installed and is required for dependencies: Run the following commands to remove the freebsd-telnetd package: # pkg remove freebsd-telnetd

Svojstva

Operativni sistemi: Bilo koji
Oznake: freebsdnetwork
Referenca: CIS FreeBSD 14 Benchmark v1.0.1 - 2.2.8 Ensure telnet server services are not in use

Proverite ovaj računar

Pokrenite ovo na računaru za koji imate dozvolu za proveru. Skeniranje radi u režimu samo za čitanje.

shell

tmaegis scan --target freebsd