Ensure default group for the root account is GID 0

中等級 1自動化cos

說明

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.

檢查方式

稽核方法: Shell 指令

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

預期輸出: compliant

修補方式

修補方法: 操作指南或基礎設施修補檔

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

屬性

作業系統: 不限
標籤: container-optimized-oscos
參考資料: CIS Google Container-Optimized OS Benchmark v1.2.0 - 5.3.3 Ensure default group for the root account is GID 0

檢查此主機

請在您有權稽核的機器上執行此指令。掃描為唯讀操作。

shell

tmaegis scan --target cos