Ensure that the host's UTS namespace is not shared

SedangLevel 1Otomatisdocker

Deskripsi

Sharing the host's UTS namespace allows the container to change the host's hostname. The audit inspects every running container (docker ps -q) and prints the offending names; a host with no running containers is compliant.

Cara pemeriksaan

Metode audit: Perintah shell

shell

ids=$(docker ps -q) || exit 1; [ -z "$ids" ] && { echo compliant; exit 0; }; out=$(docker inspect --format '{{.Name}} {{.HostConfig.UTSMode}}' $ids) || exit 1; bad=$(printf '%s\n' "$out" | awk '$2=="host"{print $1}'); [ -z "$bad" ] && echo compliant || printf '%s\n' "$bad"

Output yang diharapkan: compliant

Cara perbaikan

Metode perbaikan: Panduan atau patch infrastruktur

Redeploy without --uts=host (compose: remove 'uts: host').

Properti

Sistem operasi: Apa saja
Tag: dockerruntime
Referensi: CIS Docker Benchmark v1.9.0 - 5.21 Ensure that the host's UTS namespace is not shared

Periksa host ini

Jalankan ini pada mesin yang diizinkan untuk Anda audit. Pemindaian bersifat hanya baca.

shell

tmaegis scan --target docker