Linux Password Complexity Not Enforced

漏洞信息

漏洞名称: Linux Password Complexity Not Enforced

漏洞类型: 弱口令

漏洞等级: 高危

漏洞描述: 该漏洞涉及Linux系统中密码复杂性要求未强制执行的问题。受影响的产品是Linux操作系统,这是一个广泛使用的开源操作系统,部署在从个人电脑到企业服务器的各种场景中。漏洞类型为弱口令,其技术根源在于系统配置中未正确实施密码复杂性策略,如最小长度、数字、大写字母、小写字母和特殊字符的要求。这导致用户可以设置弱密码,从而增加了系统遭受暴力破解和字典攻击的风险。由于密码是系统安全的第一道防线,弱密码的存在会严重威胁系统的安全性,可能导致未授权访问、数据泄露或其他恶意活动。此漏洞的利用不需要认证,且可以自动化执行,因此其潜在影响范围广泛,特别是在多用户环境中。

产品名称: Linux

来源: https://github.com/projectdiscovery/nuclei-templates/blob/c2a185916eccf1d1922d4e27c37bc793293eddd0/misconfiguration%2Flinux%2Fpassword-complexity-not-enforced.yaml

类型: projectdiscovery/nuclei-templates:github issues

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id: password-complexity-not-enforced

info:
name: Linux Password Complexity Not Enforced
author: songyaeji
severity: high
description: >
Password complexity requirements are not enforced on this system. This allows weak passwords,
making user accounts more susceptible to brute-force and dictionary attacks.
reference:
- https://isms.kisa.or.kr/main/csap/notice/
- Cloud Vulnerability Assessment Guide(2024) by KISA
tags: linux,local,configuration,auth,weak-password,compliance
metadata:
verified: true
os: linux
max-request: 2
classification:
cvss-metrics: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
cvss-score: 7.8
cwe-id: CWE-521

self-contained: true
code:
- engine:
- bash
source: |
cat /etc/security/pwquality.conf 2>/dev/null || true
matchers:
- type: regex
part: code_1_response
regex:
- 'minlen\s*=\s*[0-7]'
- 'dcredit\s*=\s*0'
- 'ucredit\s*=\s*0'
- 'lcredit\s*=\s*0'
- 'ocredit\s*=\s*0'
condition: or

- engine:
- bash
source: |
grep pam_pwquality.so /etc/pam.d/system-auth /etc/pam.d/common-password 2>/dev/null || true
matchers:
- type: word
part: code_2_response
words:
- "pam_pwquality.so"
- type: word
part: code_2_response
words:
- "enforce_for_root"
negative: true


Linux Password Complexity Not Enforced
http://example.com/2025/08/04/github_1428714995/
作者
lianccc
发布于
2025年8月4日
许可协议