Ensure no duplicate user names exist

SedangLevel 1Otomatiscos

Deskripsi

Although the useradd program will not let you create a duplicate user name, it is possible for an administrator to manually edit the /etc/passwd file and change the user name. If a user is assigned a duplicate user name, it will create and have access to files with the first UID for that username in /etc/passwd . For example, if "test4" has a UID of 1000 and a subsequent "test4" entry has a UID of 2000, logging in as "test4" will use UID 1000. Effectively, the UID is shared, which is a security problem.

Cara pemeriksaan

Metode audit: Perintah shell

shell

cut -d: -f1 /etc/passwd | sort | uniq -d | grep -q . && echo noncompliant || echo compliant

Output yang diharapkan: compliant

Cara perbaikan

Metode perbaikan: Panduan atau patch infrastruktur

Based on the results of the audit script, establish unique user names for the users. File ownerships will automatically reflect the change as long as the users have unique UIDs.

Properti

Sistem operasi: Apa saja
Tag: container-optimized-oscos
Referensi: CIS Google Container-Optimized OS Benchmark v1.2.0 - 6.2.18 Ensure no duplicate user names exist

Periksa host ini

Jalankan ini pada mesin yang diizinkan untuk Anda audit. Pemindaian bersifat hanya baca.

shell

tmaegis scan --target cos