Ensure sudo authentication timeout is configured correctly

AltaNivel 1Automatizadaazure-container-linux

Descripción

sudo caches used credentials for a default of 5 minutes. This is for ease of use when there are multiple administrative tasks to perform. The timeout can be modified to suit local security policies. Audit: Passes when every timestamp_timeout in /etc/sudoers and /etc/sudoers.d is between 0 and 15 minutes; with none set the sudo default of 5 minutes applies.

Cómo se verifica

Método de auditoría: Comando de shell

shell

bad=0; for v in $(grep -rhoP "timestamp_timeout=\K-?[0-9.]*" /etc/sudoers /etc/sudoers.d 2>/dev/null); do case $v in -*|"") bad=1;; *) [ "${v%.*}" -le 15 ] 2>/dev/null || bad=1;; esac; done; [ $bad -eq 0 ] && echo compliant || echo noncompliant

Salida esperada: compliant

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

If the currently configured timeout is larger than 15 minutes, edit the file listed in the audit section with visudo -f <PATH TO FILE> and modify the entry timestamp_timeout= to 15 minutes or less as per your site policy. The value is in minutes. This particular entry may appear on its own, or on the same line as env_reset. See the following two examples: Defaults env_reset, timestamp_timeout=15 Defaults timestamp_timeout=15 Defaults env_reset

Propiedades

Sistemas operativos: Cualquiera
Etiquetas: azure-container-linuxsudo
Referencia: CIS Azure Container Linux Benchmark v1.0.0 - 5.3.2 Ensure sudo authentication timeout is configured correctly

Verificar este host

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

shell

tmaegis scan --target azure-container-linux