CCE-95657-3| Platform: cpe:/o:ubuntu:ubuntu_linux:18.04, cpe:/o:ubuntu:ubuntu_linux:22.04, cpe:/o:debian:debian_linux:11.x, cpe:/o:ubuntu:ubuntu_linux:20.04, cpe:/o:ubuntu:ubuntu_linux:16.04, cpe:/o:ubuntu:ubuntu_linux:23.04 | Date: (C)2021-03-08 (M)2023-09-01 |
An account with an empty password field means that anybody may log in as that user without providing a password.
Rationale:
All accounts must have passwords or be locked to prevent the account from being used by an unauthorized user.
Fix:
If any accounts in the /etc/shadow file do not have a password, run the following command to lock the account until it can be determined why it does not have a password: # passwd -l <username> Also, check to see if the account is logged in and investigate what it is being used for to determine if it needs to be forced off.
Parameter:
[yes/no]
Technical Mechanism:
If any accounts in the /etc/shadow file do not have a password, run the following command to lock the account until it can be determined why it does not have a password: # passwd -l username Also, check to see if the account is logged in and investigate what it is being used for to determine if it needs to be forced off.
| CCSS Severity: | CCSS Metrics: |
| CCSS Score : 9.8 | Attack Vector: NETWORK |
| Exploit Score: 3.9 | Attack Complexity: LOW |
| Impact Score: 5.9 | Privileges Required: NONE |
| Severity: CRITICAL | User Interaction: NONE |
| Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | Scope: UNCHANGED |
| | Confidentiality: HIGH |
| | Integrity: HIGH |
| | Availability: HIGH |
| | |
References: | Resource Id | Reference |
|---|
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:85234 |
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:92157 |
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:70790 |
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:87377 |
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:70700 |
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:68710 |
