Ensure no duplicate UIDs exist

MittelStufe 1Automatisiertfreebsd

Beschreibung

Although the adduser or pw program will not let you create a duplicate User ID (UID), an administrator can manually edit the /etc/passwd file and change the UID field. Users must be assigned unique UIDs for accountability and to ensure appropriate access protections. Audit: automated read-only check derived from the CIS audit procedure; it prints "compliant" when the control is met.

So wird geprüft

Prüfmethode: Shell-Befehl

shell

command -v cut >/dev/null 2>&1 || exit 1; out=$( { cut -d: -f3 /etc/passwd | sort -n | uniq -d ; } 2>/dev/null ); [ -z "$out" ] && echo compliant || printf '%s\n' "$out" | head -n 20

Erwartete Ausgabe: compliant

So wird behoben

Behebungsmethode: Anleitung oder Infrastruktur-Patch

Based on the audit script's results, establish unique UIDs and review all files owned by the shared UIDs to determine which UID they are supposed to belong to.

Eigenschaften

Betriebssysteme: Beliebig
Tags: freebsdaccounts
Referenz: CIS FreeBSD 14 Benchmark v1.0.1 - 6.2.4 Ensure no duplicate UIDs exist

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shell

tmaegis scan --target freebsd