FreeBSD
TMA-FREEBSD-2.2.9
Ensure tftp server services are not in use
Descrição
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.
Como é verificado
Método de auditoria: Comando 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- Saída esperada
compliant
Como é corrigido
Método de correção: Orientação ou patch de infraestrutura
Run the following commands to stop and disable tftp: # sed -i '' -e 's|^tftp|#tftp|g' /etc/inetd.conf # service inetd restart
Propriedades
- Sistemas operacionais
- Qualquer
- Tags
- freebsdservices
- Referência
- CIS FreeBSD 14 Benchmark v1.0.1 - 2.2.9 Ensure tftp server services are not in use
Verificar este host
Execute isto em uma máquina que você tenha permissão para auditar. A varredura é somente leitura.
tmaegis scan --target freebsd