TMA-COS-5.1.10

Ensure SSH root login is disabled

SedangLevel 1Otomatiscos

Deskripsi

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

Cara pemeriksaan

Metode audit: Perintah shell

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

Output yang diharapkan: compliant

Cara perbaikan

Metode perbaikan: Panduan atau patch infrastruktur

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

Properti

Sistem operasi: Apa saja
Tag: container-optimized-oscosloggingssh
Referensi: CIS Google Container-Optimized OS Benchmark v1.2.0 - 5.1.10 Ensure SSH root login is disabled

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shell

tmaegis scan --target cos