Ensure prelink is disabled

MediaNivel 1Automatizadaros

Descripción

prelink is a program that modifies ELF shared libraries and ELF dynamically linked binaries in such a way that the time needed for the dynamic linker to perform relocations at startup significantly decreases. The audit requires the prelink package not to be installed. Host-level control from the CIS ROS Melodic benchmark (Ubuntu 18.04 robot hosts); run as root.

Cómo se verifica

Método de auditoría: Comando de shell

shell

command -v dpkg-query >/dev/null 2>&1 || exit 1
bad=0
for p in prelink; do
  s=$(dpkg-query -W -f='${Status}' "$p" 2>/dev/null)
  case "$s" in *' installed') echo "$p is installed"; bad=1 ;; esac
done
[ "$bad" -eq 0 ] && echo compliant

Salida esperada: compliant

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

Run the following command to restore binaries to normal: # prelink -ua Uninstall prelink using the appropriate package manager or manual installation: # apt purge prelink

Propiedades

Sistemas operativos: Cualquiera
Etiquetas: rosros1melodicsystem
Referencia: CIS ROS Melodic Benchmark v1.0.0 - 1.6.3 Ensure prelink is disabled

Verificar este host

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

shell

tmaegis scan --target ros