Ensure sshd MaxStartups is configured

中级别 1自动化linux

说明

The MaxStartups parameter specifies the maximum number of concurrent unauthenticated connections to the SSH daemon.

检查方式

审计方法: Shell 命令

shell

alt0() { o=$(bash -c 'sshd -T | awk '"'"'$1 ~ /^\s*maxstartups/{split($2, a, ":");{if(a[1] > 10 || a[2] > 30 || a[3] > 60) print $0}}'"'"'' 2>/dev/null); [ -z "$o" ] || { echo "step1: $o" | head -c 300; 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 MaxStartups parameter to 10:30:60 or more restrictive above any Include entries as follows: MaxStartups 10:30:60

属性

操作系统: rocky-9
标签: cis-convertedlinux
参考: CIS Rocky Linux 9 Benchmark v3.0.0 - 5.1.18

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