Ensure nologin is not listed in /etc/shells

RendahLevel 2Otomatislinux

Deskripsi

/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. Be aware that there are programs which consult this file to find out if a user is a normal user; for example, FTP daemons traditionally disallow access to users with shells not included in this file.

Cara pemeriksaan

Metode audit: Perintah shell

shell

alt0() { command -v grep >/dev/null 2>&1 || { echo "step1: grep not installed"; return 1; }; o=$(bash -c 'grep -Ps '"'"'^\h*([^#\n\r]+)?\/nologin\b'"'"' /etc/shells' 2>/dev/null); [ -z "$o" ] || { echo "step1: $o" | head -c 300; return 1; }; }; if alt0; then echo compliant; fi

Output yang diharapkan: compliant

Cara perbaikan

Metode perbaikan: Panduan atau patch infrastruktur

Edit /etc/shells and remove any lines that include nologin

Properti

Sistem operasi: rocky-9
Tag: cis-convertedlinux
Referensi: CIS Rocky Linux 9 Benchmark v3.0.0 - 5.4.3.1

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shell

tmaegis scan --target linux --level 2