TMA-ORACLE-DB-2.1.1
Ensure 'extproc' Is Not Present In 'listener.ora'
Descripción
extproc should be removed from the listener.ora to mitigate the risk that OS libraries can be invoked by the Oracle instance. Passes when listener.ora contains no extproc entry (or no listener.ora exists in that directory). 19c v2.0.0 titles this "Ensure 'extproc' Is Not Enabled". Reads the file from $TNS_ADMIN, or $ORACLE_HOME/network/admin when TNS_ADMIN is unset (Linux/UNIX hosts); fails when neither directory exists.
Cómo se verifica
Método de auditoría: Comando de shell
d="${TNS_ADMIN:-${ORACLE_HOME:?ORACLE_HOME not set}/network/admin}"; [ -d "$d" ] || { echo "missing $d"; exit 1; }; f="$d/listener.ora"; [ -f "$f" ] || { echo compliant; exit 0; }; n=$(grep -ic extproc "$f"); [ "$n" = 0 ] && echo compliant || echo "noncompliant: extproc found in $f"- Salida esperada
compliant
Cómo se corrige
Método de corrección: Guía o parche de infraestructura
To remediate this recommendation, remove extproc from the listener.ora file. Instead of relying on the EXTPROC feature in Oracle to access external libraries, you can use a database directory to directly access the library files stored within the database server's file system, allowing you to execute code from those libraries within your PL/SQL code without going through a separate external process.
Propiedades
- Sistemas operativos
- Cualquiera
- Etiquetas
- oracle-dbdatabaseoraclenetworklistener
- Referencia
- CIS Oracle Database 23ai Benchmark v1.1.0 - 2.1.1 Ensure 'extproc' Is Not Present In 'listener.ora'
Verificar este host
Ejecute esto en un equipo que tenga permiso para auditar. El escaneo es de solo lectura.
tmaegis scan --target oracle-db