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CVE-2021-38685— Command Injection Vulnerability in VioStor

Quick assessment

Affected
QNAP Systems Inc. QVR
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.

Qnap Qvr是中国威联通科技（Qnap）公司的一个Qnap监控系统控制中心。 QNAP 设备 VioStor 存在操作系统命令注入漏洞，该漏洞允许远程攻击者运行任意命令。我们已经在以下 QVR 版本中修复了此漏洞：QVR FW 5.1.6 build 20211109 及更高版本。

CVSS 9.8 · Critical EPSS 1.47% · P73

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-38685

Vulnerability Information
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Vulnerability Title
Command Injection Vulnerability in VioStor
Source: CVE Program / CVE List V5
Vulnerability Description
A command injection vulnerability has been reported to affect QNAP device, VioStor. If exploited, this vulnerability allows remote attackers to run arbitrary commands. We have already fixed this vulnerability in the following versions of QVR: QVR FW 5.1.6 build 20211109 and later
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/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
Qnap Qvr 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Qnap Qvr是中国威联通科技（Qnap）公司的一个Qnap监控系统控制中心。 QNAP 设备 VioStor 存在操作系统命令注入漏洞，该漏洞允许远程攻击者运行任意命令。我们已经在以下 QVR 版本中修复了此漏洞：QVR FW 5.1.6 build 20211109 及更高版本。
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
QNAP Systems Inc. QVR unspecified ~ QVR FW 5.1.6 build 20211109 -

II. Public POCs for CVE-2021-38685

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III. Intelligence Information for CVE-2021-38685

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Other References for CVE-2021-38685 (1)

IV. Related Vulnerabilities

Same product: QVR
Same vendor: QNAP Systems Inc.
Same weakness: CWE-78

V. Comments for CVE-2021-38685

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