Ensure access to /etc/cron.d is configured

中级别 1自动化linux

说明

The /etc/cron.d directory contains system cron jobs that need to run in a similar manner to the hourly, daily weekly and monthly jobs from /etc/crontab, but require more granular control as to when they run. The files in this directory cannot be manipulated by the crontab command but are instead edited by system administrators using a text editor. The commands below restrict read/write and search access to user and group root, preventing regular users from accessing this directory.

检查方式

审计方法: Shell 命令

shell

alt0() { s=$(stat -Lc '%a %u %g' /etc/cron.d/ 2>&1) || { echo "step1: $s"; return 1; }; set -- $s; m=$((8#$1)); [ $((m & ~0700)) -eq 0 ] && [ "$2" = 0 ] && [ "$3" = 0 ] || { echo "step1: /etc/cron.d/ is mode $1 uid $2 gid $3, want 700 or stricter, uid 0, gid 0"; return 1; }; }; if alt0; then echo compliant; 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

- IF - cron is installed on the system: Run the following commands to set ownership and permissions on the /etc/cron.d directory: # chown root:root /etc/cron.d/ # chmod og-rwx /etc/cron.d/

属性

操作系统: rocky-8
标签: cis-convertedlinux
参考: CIS Rocky Linux 8 Benchmark v3.0.0 - 2.4.1.8

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 linux