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CVE-2020-2504— Absolute path traversal vulnerability in QES

Quick assessment

Affected
QNAP Systems Inc. QES
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 QES是中国QNAP公司的一款主要应用于管理文件的桌面操作系统。 QES 2.1.1 Build 20201006 之前版本存在路径遍历漏洞，该漏洞源于允许攻击者遍历文件站中的文件。

CVSS 5.8 · Medium EPSS 1.02% · P60

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery
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I. Basic Information for CVE-2020-2504

Vulnerability Information
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Vulnerability Title
Absolute path traversal vulnerability in QES
Source: CVE Program / CVE List V5
Vulnerability Description
If exploited, this absolute path traversal vulnerability could allow attackers to traverse files in File Station. QNAP has already fixed these issues in QES 2.1.1 Build 20201006 and later.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
QNAP QES 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
QNAP QES是中国QNAP公司的一款主要应用于管理文件的桌面操作系统。 QES 2.1.1 Build 20201006 之前版本存在路径遍历漏洞，该漏洞源于允许攻击者遍历文件站中的文件。
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. QES unspecified ~ 2.1.1 -

II. Public POCs for CVE-2020-2504

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III. Intelligence Information for CVE-2020-2504

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Other References for CVE-2020-2504 (1)

Same Patch Batch · QNAP Systems Inc. · 2020-12-24 · 4 CVEs total

CVE-2020-2503 9.0 CRITICAL Stored cross-site scripting vulnerability in QES
CVE-2020-2499 6.3 MEDIUM Hard-coded Password Vulnerability in QES
CVE-2020-2505 2.3 LOW Sensitive information via generation of error messages vulnerability in QES

IV. Related Vulnerabilities

Same product: QES
Same vendor: QNAP Systems Inc.
Same weakness: CWE-22

V. Comments for CVE-2020-2504

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