Ensure that NGINX is run using a non-privileged, dedicated service account

VisokaNivo 1Automatskanginx

Opis

The NGINX master process typically runs as root to bind to privileged ports and manage resources, but it spawns worker processes to handle the actual client traffic. The user directive in the main configuration designates the operating system account under which these worker processes run. Compliant when the user directive names an account whose UID is not 0 and which is not in the root, wheel, sudo or admin groups (sudo rights are not checked). Evaluated on the merged configuration printed by `nginx -T` (all included files; needs permission to read them). CIS marks this recommendation Manual; the automated check implements its audit procedure.

Kako se proverava

Metod provere: Komanda ljuske

shell

out=$(nginx -T 2>/dev/null) || exit 1; u=$(printf '%s\n' "$out" | awk '$1=="user"{x=$2; sub(/;$/,"",x); print x; exit}'); [ -n "$u" ] || { echo noncompliant; exit 0; }; id=$(id -u "$u" 2>/dev/null) || { echo noncompliant; exit 0; }; g=$(id -Gn "$u" 2>/dev/null); [ "$id" != 0 ] && ! printf ' %s ' "$g" | grep -Eq ' (root|wheel|sudo|admin) ' && echo compliant || echo noncompliant

Očekivani izlaz: compliant

Kako se ispravlja

Metod ispravke: Smernica ili zakrpa infrastrukture

Create a dedicated system account (e.g. useradd -r -s /sbin/nologin nginx), set 'user nginx;' in the main context of nginx.conf and remove the account from privileged groups. Then run nginx -t and reload nginx.

Svojstva

Operativni sistemi: Bilo koji
Oznake: nginxaccounts
Referenca: CIS NGINX Benchmark v3.0.0 - 2.2.1 Ensure that NGINX is run using a non-privileged, dedicated service account

Proverite ovaj računar

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

shell

tmaegis scan --target nginx