TMA-AIX-2.6
Ensure regular scans for unauthorized applications
Descripción
This recommendation is find and report (audit) software on the system that has not been included in the TE (trusted execution) TSD (trusted signature database). These entries establish a so-called AllowList. Software not included on this AllowList should be generating a syslog and/or audit record whenever it is executed.
Cómo se verifica
Método de auditoría: Revisión manual
Esta recomendación no se puede verificar automáticamente. Un escaneo la lista con estas instrucciones cuando se pasa --include-manual.
The following command will locate the software AIX considers untrusted aka TROJAN. Note: the output goes to stderr so stderr is first joined to stdout and thereafter stdout get redirected to /dev/null. The argument -i instructs the scan to ignore NFS mounts. trustchk -i -n tree / 2>&1 >/dev/null | grep untrusted
Cómo se corrige
Método de corrección: Guía o parche de infraestructura
This will be a manual process. The remediation is to find and remove the offending file (currently the reported file might be the artifact of another error - most common is a symbolic link that points at a non-existent object). The starting point is running the same command from the AUDIT section: trustchk -i -n tree / 2>&1 >/dev/null | grep untrusted Line by line, verify the root cause and act (one of): remove the offending object remove SUID/SGID settings remove privcmds setting add to TSD aka AllowList
Propiedades
- Sistemas operativos
- Cualquiera
- Etiquetas
- aixhardening
- Referencia
- CIS IBM AIX 7 Benchmark v1.2.0 - 2.6 Ensure regular scans for unauthorized applications