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CVE-2021-44053— Reflected XSS

Quick assessment

Affected
QNAP Systems Inc. QTS
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 QUTS Hero和QNAP QuTScloud都是中国威联通（QNAP Systems）公司的产品。QUTS Hero是一款用于管理文件的NAS操作系统。该系统保留了QTS的应用生态，整合更强大的128位ZFS文件系统，为企业提供更稳定可靠的NAS存储解决方案。QNAP QuTScloud是一种 QNAP NAS 操作系统的云端优化版本。 QNAP QTS、QuTS hero 和 QuTScloud 存在跨站脚本漏洞，该漏洞源于对用户提供的数据的清理不足。远程攻击者利用此漏洞可

CVSS 5.7 · Medium EPSS 0.73% · P51
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I. Basic Information for CVE-2021-44053

Vulnerability Information
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Vulnerability Title
Reflected XSS
Source: CVE Program / CVE List V5
Vulnerability Description
A cross-site scripting (XSS) vulnerability has been reported to affect QNAP device running QTS, QuTS hero and QuTScloud. If exploited, this vulnerability allows remote attackers to inject malicious code. We have already fixed this vulnerability in the following versions of QTS, QuTS hero and QuTScloud: QTS 4.5.4.1991 build 20220329 and later QTS 5.0.0.1986 build 20220324 and later QuTS hero h5.0.0.1986 build 20220324 and later QuTS hero h4.5.4.1971 build 20220310 and later QuTScloud c5.0.1.1949 and later
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/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 Systems 多款产品跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
QNAP Systems QUTS Hero和QNAP QuTScloud都是中国威联通（QNAP Systems）公司的产品。QUTS Hero是一款用于管理文件的NAS操作系统。该系统保留了QTS的应用生态，整合更强大的128位ZFS文件系统，为企业提供更稳定可靠的NAS存储解决方案。QNAP QuTScloud是一种 QNAP NAS 操作系统的云端优化版本。 QNAP QTS、QuTS hero 和 QuTScloud 存在跨站脚本漏洞，该漏洞源于对用户提供的数据的清理不足。远程攻击者利用此漏洞可
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. QTS unspecified ~ 4.5.4.1991 build 20220329 -
QNAP Systems Inc. QuTS hero unspecified ~ h5.0.0.1986 build 20220324 -
QNAP Systems Inc. QuTScloud unspecified ~ c5.0.1.1949 -

II. Public POCs for CVE-2021-44053

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III. Intelligence Information for CVE-2021-44053

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Other References for CVE-2021-44053 (1)

Same Patch Batch · QNAP Systems Inc. · 2022-05-05 · 9 CVEs total

CVE-2022-27588 9.8 CRITICAL Vulnerability in QVR
CVE-2021-44051 8.8 HIGH Command injection
CVE-2021-44056 7.1 HIGH Improper authentication in Video Station
CVE-2021-44057 7.1 HIGH Improper authentication in Photo Station
CVE-2021-44052 6.5 MEDIUM Arbitrary file read
CVE-2021-38693 5.3 MEDIUM Path Traversal in thttpd
CVE-2021-44055 5.3 MEDIUM Information leakage in Video Station
CVE-2021-44054 4.3 MEDIUM Open redirect

IV. Related Vulnerabilities

Same product: QTS
Same vendor: QNAP Systems Inc.
Same weakness: CWE-79

V. Comments for CVE-2021-44053

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