Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2021-38674— Reflected XSS Vulnerability in TFTP

Quick assessment

Affected
QNAP Systems Inc. QuTS hero
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是中国威联通（QNAP Systems）公司的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 Systems QUTS Hero跨站脚本中存在漏洞。该漏洞源于一个跨站点脚本 (XSS) 漏洞会影响 QTS、QuTS hero 和 QuTScloud。如果被利用，此漏洞允许远程攻击者注入恶意代码。我们已经在以下 QTS、QuTS hero 和 QuTSclou

CVSS 4.2 · Medium EPSS 0.64% · P49

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2021-38674

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Reflected XSS Vulnerability in TFTP
Source: CVE Program / CVE List V5
Vulnerability Description
A cross-site scripting (XSS) vulnerability has been reported to affect 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: QuTS hero h4.5.4.1771 build 20210825 and later QTS 4.5.4.1787 build 20210910 and later QuTScloud c4.5.7.1864 and later
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/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 QUTS Hero 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
QNAP Systems QUTS Hero是中国威联通（QNAP Systems）公司的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 Systems QUTS Hero跨站脚本中存在漏洞。该漏洞源于一个跨站点脚本 (XSS) 漏洞会影响 QTS、QuTS hero 和 QuTScloud。如果被利用，此漏洞允许远程攻击者注入恶意代码。我们已经在以下 QTS、QuTS hero 和 QuTSclou
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. QuTS hero unspecified ~ h4.5.4.1771 build 20210825 -
QNAP Systems Inc. QTS unspecified ~ 4.5.4.1787 build 20210910 -
QNAP Systems Inc. QuTScloud unspecified ~ c4.5.7.1864 -

II. Public POCs for CVE-2021-38674

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2021-38674

请登录查看更多情报信息。

IV. Related Vulnerabilities

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

V. Comments for CVE-2021-38674

No comments yet

Leave a comment