CVE-2021-28807— Post-Authentication Reflected XSS Vulnerability in Q'center
Quick assessment
Affected
QNAP Systems Inc. Q’center
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 Systems QNAP NAS running Multimedia Console是中国威联通（Qnap Systems）公司的一个应用软件。一个多媒体控制台。 QNAP NAS存在安全漏洞，该漏洞允许远程攻击者注入恶意代码。
Possible ATT&CK Techniques 1 AI
T1059.007 · JavaScript
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I. Basic Information for CVE-2021-28807
Vulnerability Information
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Vulnerability Title
Post-Authentication Reflected XSS Vulnerability in Q'center
Source: CVE Program / CVE List V5
Vulnerability Description
A post-authentication reflected XSS vulnerability has been reported to affect QNAP NAS running Q’center. If exploited, this vulnerability allows remote attackers to inject malicious code. QNAP have already fixed this vulnerability in the following versions of Q’center: QTS 4.5.3: Q’center v1.12.1012 and later QTS 4.3.6: Q’center v1.10.1004 and later QTS 4.3.3: Q’center v1.10.1004 and later QuTS hero h4.5.2: Q’center v1.12.1012 and later QuTScloud c4.5.4: Q’center v1.12.1012 and later
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
QNAP NAS 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Qnap Systems QNAP NAS running Multimedia Console是中国威联通（Qnap Systems）公司的一个应用软件。一个多媒体控制台。 QNAP NAS存在安全漏洞，该漏洞允许远程攻击者注入恶意代码。
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. | Q’center | unspecified ~ v1.12.1012 | - |
|
| QNAP Systems Inc. | Q’center | unspecified ~ v1.10.1004 | - |
|
| QNAP Systems Inc. | Q’center | unspecified ~ v1.10.1004 | - |
|
| QNAP Systems Inc. | Q’center | unspecified ~ v1.12.1012 | - |
|
| QNAP Systems Inc. | Q’center | unspecified ~ v1.12.1012 | - |
|
II. Public POCs for CVE-2021-28807
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2021-28807 (3)
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https://www.qnap.com/zh-tw/security-advisory/qsa-21-20 x_refsource_MISC
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https://www.shielder.it/advisories/qnap-qcenter-virtual-stored-xss/ x_refsource_MISC
Same Patch Batch · QNAP Systems Inc. · 2021-06-03 · 3 CVEs total
| CVE-2021-28812 | 8.8 HIGH | Command Injection Vulnerability in Video Station |
| CVE-2021-28806 | 5.7 MEDIUM | DOM-Based XSS Vulnerability in QTS and QuTS hero |
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V. Comments for CVE-2021-28807
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