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CVE-2021-28798— Relative Path Traversal Vulnerability in QTS and QuTS hero

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 NAS 存在安全漏洞，该漏洞源于一个相对路径遍历漏洞，这个漏洞允许攻击者可利用该漏洞修改影响系统完整性的文件。QNAP已经在以下版本中修复了此漏洞:QTS 4.5.2.1630 Build 20210406 and later QTS 4.3.6.1663 Build 20210504 and later QTS 4.3.3.1624 Build 20210416 and later QuTS hero h4.5.2.1638 Build 20210414 and later QTS NAS。

CVSS 8.8 · High EPSS 0.94% · P58
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I. Basic Information for CVE-2021-28798

Vulnerability Information
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Vulnerability Title
Relative Path Traversal Vulnerability in QTS and QuTS hero
Source: CVE Program / CVE List V5
Vulnerability Description
A relative path traversal vulnerability has been reported to affect QNAP NAS running QTS and QuTS hero. If exploited, this vulnerability allows attackers to modify files that impact system integrity. QNAP have already fixed this vulnerability in the following versions: QTS 4.5.2.1630 Build 20210406 and later QTS 4.3.6.1663 Build 20210504 and later QTS 4.3.3.1624 Build 20210416 and later QuTS hero h4.5.2.1638 Build 20210414 and later QNAP NAS running QTS 4.5.3 are not affected.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
QNAP NAS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
QNAP NAS 存在安全漏洞，该漏洞源于一个相对路径遍历漏洞，这个漏洞允许攻击者可利用该漏洞修改影响系统完整性的文件。QNAP已经在以下版本中修复了此漏洞:QTS 4.5.2.1630 Build 20210406 and later QTS 4.3.6.1663 Build 20210504 and later QTS 4.3.3.1624 Build 20210416 and later QuTS hero h4.5.2.1638 Build 20210414 and later QTS NAS。
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 ~ 4.5.2.1630 Build 20210406 -
QNAP Systems Inc. QuTS hero unspecified ~ h4.5.2.1638 Build 20210414 -

II. Public POCs for CVE-2021-28798

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III. Intelligence Information for CVE-2021-28798

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Other References for CVE-2021-28798 (1)

IV. Related Vulnerabilities

Same product: QTS
Same vendor: QNAP Systems Inc.
Same weakness: CWE-284

V. Comments for CVE-2021-28798

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