TMA-COS-2.1.3
Ensure NFS and RPC are not enabled
Deskripsi
The Network File System (NFS) is one of the first and most widely distributed file systems in the UNIX environment. It provides the ability for systems to mount file systems of other servers through the network. If the system does not export NFS shares or act as an NFS client, it is recommended that these services be disabled to reduce the remote attack surface.
Cara pemeriksaan
Metode audit: Perintah shell
alt0() { command -v systemctl >/dev/null 2>&1 || { echo "step1: systemctl not installed"; return 1; }; o=$(bash -c 'systemctl is-enabled nfs-server' 2>&1); printf '%s\n' "$o" | tr -s ' \t' ' ' | sed 's/^ //;s/ $//' | grep -Fxq -- disabled || { echo step1: missing disabled; return 1; }; command -v systemctl >/dev/null 2>&1 || { echo "step2: systemctl not installed"; return 1; }; o=$(bash -c 'systemctl is-enabled rpcbind' 2>&1); printf '%s\n' "$o" | tr -s ' \t' ' ' | sed 's/^ //;s/ $//' | grep -Fxq -- disabled || { echo step2: missing disabled; return 1; }; }; if alt0; then echo compliant; fi- Output yang diharapkan
compliant
Cara perbaikan
Metode perbaikan: Panduan atau patch infrastruktur
Run the following commands to disable the nfs-server and rpcbind: # systemctl --now disable nfs-server # systemctl --now disable rpcbind /etc is stateless on Container-Optimized OS. Therefore, the steps mentioned above needs to be performed after every boot.
Properti
- Sistem operasi
- Apa saja
- Tag
- container-optimized-oscos
- Referensi
- CIS Google Container-Optimized OS Benchmark v1.2.0 - 2.1.3 Ensure NFS and RPC are not enabled
Periksa host ini
Jalankan ini pada mesin yang diizinkan untuk Anda audit. Pemindaian bersifat hanya baca.
tmaegis scan --target cos