Ensure default group for the root account is GID 0

SedangLevel 1Otomatiscos

Deskripsi

The usermod command can be used to specify which group the root user belongs to. This affects permissions of files that are created by the root user. Using GID 0 for the root account helps prevent root -owned files from accidentally becoming accessible to non-privileged users.

Cara pemeriksaan

Metode audit: Perintah shell

shell

alt0() { command -v cut >/dev/null 2>&1 || { echo "step1: cut not installed"; return 1; }; command -v grep >/dev/null 2>&1 || { echo "step1: grep not installed"; return 1; }; o=$(bash -c 'grep "^root:" /etc/passwd | cut -f4 -d:' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- 0 || { echo step1: missing 0; return 1; }; }; if alt0; then echo compliant; fi

Output yang diharapkan: compliant

Cara perbaikan

Metode perbaikan: Panduan atau patch infrastruktur

Run the following command to set the root user default group to GID 0 : # usermod -g 0 root

Properti

Sistem operasi: Apa saja
Tag: container-optimized-oscos
Referensi: CIS Google Container-Optimized OS Benchmark v1.2.0 - 5.3.3 Ensure default group for the root account is GID 0

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shell

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