Ensure no duplicate UIDs exist

MediaNivel 1Automatizadafreebsd

Descripción

Although the adduser or pw program will not let you create a duplicate User ID (UID), an administrator can manually edit the /etc/passwd file and change the UID field. Users must be assigned unique UIDs for accountability and to ensure appropriate access protections. 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 cut >/dev/null 2>&1 || exit 1; out=$( { cut -d: -f3 /etc/passwd | sort -n | uniq -d ; } 2>/dev/null ); [ -z "$out" ] && echo compliant || printf '%s\n' "$out" | head -n 20

Salida esperada: compliant

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

Based on the audit script's results, establish unique UIDs and review all files owned by the shared UIDs to determine which UID they are supposed to belong to.

Propiedades

Sistemas operativos: Cualquiera
Etiquetas: freebsdaccounts
Referencia: CIS FreeBSD 14 Benchmark v1.0.1 - 6.2.4 Ensure no duplicate UIDs exist

Verificar este host

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

shell

tmaegis scan --target freebsd