TMA-FREEBSD-2.2.9

Ensure tftp server services are not in use

AltaNivel 1Automatizadafreebsd

Descripción

Trivial File Transfer Protocol (TFTP) is a simple protocol for exchanging files between two TCP/IP machines. TFTP servers allow connections from a TFTP Client for sending and receiving files. Unless there is a need to run the system as a TFTP server, it is recommended that the service is disabled to reduce the potential attack surface. TFTP does not have built-in encryption, access control or authentication. Audit: automated read-only check derived from the CIS audit procedure; it prints "compliant" when the control is met.

Cómo se verifica

Método de auditoría: Comando de shell

shell

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

Salida esperada: compliant

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

Run the following commands to stop and disable tftp: # sed -i '' -e 's|^tftp|#tftp|g' /etc/inetd.conf # service inetd restart

Propiedades

Sistemas operativos: Cualquiera
Etiquetas: freebsdservices
Referencia: CIS FreeBSD 14 Benchmark v1.0.1 - 2.2.9 Ensure tftp server services are not in use

Verificar este host

Ejecute esto en un equipo que tenga permiso para auditar. El escaneo es de solo lectura.

shell

tmaegis scan --target freebsd