TMA-DOCKER-2.10

Enable user namespace support

SrednjaNivo 2Automatskadocker

Opis

User namespace remapping maps root inside containers to an unprivileged host UID, limiting the impact of a container breakout. The audit checks that docker info lists name=userns under SecurityOptions.

Kako se proverava

Metod provere: Komanda ljuske

shell

o=$(docker info --format '{{range .SecurityOptions}}{{.}} {{end}}') || exit 1; printf '%s\n' "$o" | grep -q 'name=userns' && echo compliant || echo missing

Očekivani izlaz: compliant

Kako se ispravlja

Metod ispravke: Smernica ili zakrpa infrastrukture

Ensure /etc/subuid and /etc/subgid contain a mapping, set "userns-remap": "default" in /etc/docker/daemon.json and restart the Docker daemon (existing images and volumes need to be re-created).

Svojstva

Operativni sistemi: Bilo koji
Oznake: dockerdaemon
Referenca: CIS Docker Benchmark v1.9.0 - 2.10 Enable user namespace support

Proverite ovaj računar

Pokrenite ovo na računaru za koji imate dozvolu za proveru. Skeniranje radi u režimu samo za čitanje.

shell

tmaegis scan --target docker --level 2