Ensure nosuid option set on /var partition

低等級 2自動化cos

說明

The nosuid mount option specifies that the filesystem cannot contain setuid files. Since the /var filesystem is only intended for temporary dynamic data, set this option to ensure that users cannot create setuid files in /var.

檢查方式

稽核方法: Shell 指令

shell

if ! findmnt -kn /var >/dev/null 2>&1; then echo compliant; elif findmnt -kn /var | grep -qw -- nosuid; then echo compliant; else echo /var' is mounted without nosuid'; 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 remount /var : # mount -o remount,nosuid /var /etc is stateless on Container-Optimized OS. Therefore, /etc cannot be used to make these changes persistent across reboots. The steps mentioned above needs to be performed after every boot.

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 - 1.1.6 Ensure nosuid option set on /var partition

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 --level 2