CVE-2021-42851
Quick assessment
Affected
Lenovo Personal Cloud Storage A1
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Lenovo Personal Cloud Storage（联想个人云存储）是中国联想（Lenovo）公司的一款个人云存储。 Lenovo Personal Cloud Storage存在安全漏洞。攻击者利用该漏洞创建用户帐户。
Possible ATT&CK Techniques 1 AI
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I. Basic Information for CVE-2021-42851
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was reported in some Lenovo Personal Cloud Storage devices that could allow an unauthenticated user to create a standard user account.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Lenovo Personal Cloud Storage 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Lenovo Personal Cloud Storage（联想个人云存储）是中国联想（Lenovo）公司的一款个人云存储。 Lenovo Personal Cloud Storage存在安全漏洞。攻击者利用该漏洞创建用户帐户。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Lenovo | Personal Cloud Storage A1 | unspecified ~ 5.3.6.a1 | - |
|
| Lenovo | Personal Cloud Storage T1 | unspecified ~ 5.3.6.t1 | - |
|
| Lenovo | Personal Cloud Storage X1 | unspecified ~ 5.3.8.x1 | - |
|
| Lenovo | Personal Cloud Storage T2 | unspecified ~ 5.3.8.t2 | - |
|
| Lenovo | Personal Cloud Storage T2Pro | unspecified ~ 5.3.7.t2-pro | - |
|
II. Public POCs for CVE-2021-42851
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2021-42851 (1)
-
https://iknow.lenovo.com.cn/detail/dc_200017.html x_refsource_MISC
Same Patch Batch · Lenovo · 2022-05-18 · 9 CVEs total
| CVE-2021-42850 | 8.8 HIGH | Lenovo Personal Cloud Storage 信任管理问题漏洞 |
| CVE-2021-42852 | 8.0 HIGH | Lenovo Personal Cloud Storage 操作系统命令注入漏洞 |
| CVE-2021-3969 | 7.8 HIGH | Lenovo Vantage 安全漏洞 |
| CVE-2021-3922 | 7.8 HIGH | Lenovo Vantage 竞争条件问题漏洞 |
| CVE-2021-42849 | 6.8 MEDIUM | Lenovo Personal Cloud Storage 授权问题漏洞 |
| CVE-2022-1110 | 5.5 MEDIUM | Lenovo Smart Standby Driver 安全漏洞 |
| CVE-2021-42848 | 4.3 MEDIUM | Lenovo Personal Cloud Storage 安全漏洞 |
| CVE-2021-3956 | 4.3 MEDIUM | Lenovo XClarity Controller 安全漏洞 |
IV. Related Vulnerabilities
Same weakness: CWE-862
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V. Comments for CVE-2021-42851
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