Ensure SSH root login is disabled

中级别 1自动化cos

说明

The PermitRootLogin parameter specifies if the root user can log in using ssh. The default is no. Disallowing root logins over SSH requires system admins to authenticate using their own individual account, then escalating to root via sudo or su. This in turn limits opportunity for non-repudiation and provides a clear audit trail in the event of a security incident

检查方式

审计方法: Shell 命令

shell

alt0() { command -v grep >/dev/null 2>&1 || { echo "step1: grep not installed"; return 1; }; command -v sshd >/dev/null 2>&1 || { echo "step1: sshd not installed"; return 1; }; o=$(bash -c 'sshd -T | grep permitrootlogin' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- 'PermitRootLogin no' || { echo step1: missing 'PermitRootLogin no'; 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

Edit the /etc/ssh/sshd_config file to set the parameter as follows: PermitRootLogin no

属性

操作系统: 任意
标签: container-optimized-oscosloggingssh
参考: CIS Google Container-Optimized OS Benchmark v1.2.0 - 5.1.10 Ensure SSH root login is disabled

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