Ensure access to /etc/shells is configured

中级别 1自动化linux

说明

/etc/shells is a text file which contains the full pathnames of valid login shells. This file is consulted by chsh and available to be queried by other programs.

检查方式

审计方法: Shell 命令

shell

alt0() { s=$(stat -Lc '%a %u %g' /etc/shells 2>&1) || { echo "step1: $s"; return 1; }; set -- $s; m=$((8#$1)); [ $((m & ~0644)) -eq 0 ] && [ "$2" = 0 ] && [ "$3" = 0 ] || { echo "step1: /etc/shells is mode $1 uid $2 gid $3, want 644 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

Run the following commands to remove excess permissions, set owner, and set group on /etc/shells: # chmod u-x,go-wx /etc/shells # chown root:root /etc/shells

属性

操作系统: rocky-8
标签: cis-convertedlinux
参考: CIS Rocky Linux 8 Benchmark v3.0.0 - 7.1.9

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