Ensure access to /etc/crontab is configured

中级别 1自动化linux

说明

The /etc/crontab file is used by cron to control its own jobs. The commands in this item make sure that root is the user and group owner of the file and that only the owner can access the file.

检查方式

审计方法: Shell 命令

shell

alt0() { s=$(stat -Lc '%a %u %g' /etc/crontab 2>&1) || { echo "step1: $s"; return 1; }; set -- $s; m=$((8#$1)); [ $((m & ~0600)) -eq 0 ] && [ "$2" = 0 ] && [ "$3" = 0 ] || { echo "step1: /etc/crontab is mode $1 uid $2 gid $3, want 600 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 /etc/crontab: # chown root:root /etc/crontab # chmod og-rwx /etc/crontab

属性

操作系统: rocky-9
标签: cis-convertedlinux
参考: CIS Rocky Linux 9 Benchmark v3.0.0 - 2.4.1.2

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