Set "mesg n" as Default for All Users

BajaNivel 1Automatizadasolaris

Descripción

The "mesg n" command blocks attempts to use the write or talk commands to contact users at their terminals, but has the side effect of slightly strengthening permissions on the user's tty device. Since write and talk are no longer widely used at most sites, the incremental security increase is worth the loss of functionality. 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

r=compliant; grep -q "^mesg n" /etc/.login 2>/dev/null || r="mesg n missing in /etc/.login"; grep -q "^mesg n" /etc/profile 2>/dev/null || r="mesg n missing in /etc/profile"; echo "$r"

Salida esperada: compliant

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

Perform the following to implement the recommended state: # cd /etc # for file in profile .login ; do if [ "`grep mesg $file`" ]; then awk '$1 == "mesg" { $2 = "n" } { print }' $file > $file.CIS mv $file.CIS $file else echo mesg n >> $file fi done

Propiedades

Sistemas operativos: Cualquiera
Etiquetas: solarisaccounts
Referencia: CIS Oracle Solaris 11.4 Benchmark v1.1.0 - 7.5 Set "mesg n" as Default for All Users

Verificar este host

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

shell

tmaegis scan --target solaris