Ensure sshd GSSAPIAuthentication is disabled

Cómo se verifica

Método de auditoría: Comando de shell

alt0() { command -v grep >/dev/null 2>&1 || { echo "step1: grep not installed"; return 1; }; command -v sshd >/dev/null 2>&1 || { echo "step1: sshd not installed"; return 1; }; o=$(bash -c 'sshd -T | grep gssapiauthentication' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- 'gssapiauthentication no' || { echo step1: missing 'gssapiauthentication no'; return 1; }; }; if alt0; then echo compliant; fi

Salida esperada

compliant

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

Edit the /etc/ssh/sshd_config file to set the GSSAPIAuthentication parameter to no above any Include and Match entries as follows: GSSAPIAuthentication no Note: First occurrence of an option takes precedence, Match set statements withstanding. If Include locations are enabled, used, and order of precedence is understood in your environment, the entry may be created in a file in Include location.

Verificar este host

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

tmaegis scan --target linux