CVE-2021-42852
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是中国联想（Lenovo）公司的一个云存储平台。 Lenovo Personal Cloud Storage存在操作系统命令注入漏洞。攻击者利用该漏洞通过向设备发送特制的数据包来执行操作系统命令。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-42852
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A command injection vulnerability was reported in some Lenovo Personal Cloud Storage devices that could allow an authenticated user to execute operating system commands by sending a crafted packet to the device.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Lenovo Personal Cloud Storage 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Lenovo Personal Cloud Storage是中国联想（Lenovo）公司的一个云存储平台。 Lenovo Personal Cloud Storage存在操作系统命令注入漏洞。攻击者利用该漏洞通过向设备发送特制的数据包来执行操作系统命令。
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-2021-42852
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2021-42852 (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-2021-3969 | 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-2021-42851 | 6.3 MEDIUM | Lenovo Personal Cloud Storage 安全漏洞 |
| 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 |
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Same weakness: CWE-78
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V. Comments for CVE-2021-42852
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