Ensure permissions on /etc/passwd are configured

中等級 1自動化cos

說明

The /etc/passwd file contains user account information that is used by many system utilities and therefore must be readable for these utilities to operate. It is critical to ensure that the /etc/passwd file is protected from unauthorized write access. Although it is protected by default, the file permissions could be changed either inadvertently or through malicious actions.

檢查方式

稽核方法: Shell 指令

shell

alt0() { command -v stat >/dev/null 2>&1 || { echo "step1: stat not installed"; return 1; }; o=$(bash -c 'stat /etc/passwd' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- 'Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root)' || { echo step1: missing 'Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root)'; 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 permissions on /etc/passwd : # chown root:root /etc/passwd # chmod 644 /etc/passwd

屬性

作業系統: 不限
標籤: access-controlcontainer-optimized-oscos
參考資料: CIS Google Container-Optimized OS Benchmark v1.2.0 - 6.1.1 Ensure permissions on /etc/passwd are configured

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