Ensure nodev option set on /tmp partition

中级别 1自动化cos

说明

The nodev mount option specifies that the filesystem cannot contain special devices. Since the /tmp filesystem is not intended to support devices, set this option to ensure that users cannot attempt to create block or character special devices in /tmp .

检查方式

审计方法: Shell 命令

shell

if ! findmnt -kn /tmp >/dev/null 2>&1; then echo compliant; elif findmnt -kn /tmp | grep -qw -- nodev; then echo compliant; else echo /tmp' is mounted without nodev'; fi

预期输出: compliant

修复方式

修复方法: 操作指南或基础设施补丁

Run the following command to remount /tmp : # mount -o remount,nodev /tmp /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.

属性

操作系统: 任意
标签: container-optimized-oscos
参考: CIS Google Container-Optimized OS Benchmark v1.2.0 - 1.1.3 Ensure nodev option set on /tmp partition

检查本机

请在您有权审计的机器上运行此命令。扫描为只读操作。

shell

tmaegis scan --target cos