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CVE-2021-32951— Advantech WebAccess/NMS Improper Authentication

Quick assessment

Affected
Advantech WebAccess/NMS
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.

Advantech WebAccess/NMS是中国台湾研华（Advantech）公司的一套基于Web浏览器的网络管理系统（NMS）软件包。 Advantech WebAccess/NMS 存在授权问题漏洞。该漏洞源于网络系统或产品中缺少身份验证措施或身份验证强度不足。

CVSS 5.3 · Medium EPSS 0.95% · P60

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2021-32951

Vulnerability Information
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Vulnerability Title
Advantech WebAccess/NMS Improper Authentication
Source: CVE Program / CVE List V5
Vulnerability Description
WebAccess/NMS (Versions prior to v3.0.3_Build6299) has an improper authentication vulnerability, which may allow unauthorized users to view resources monitored and controlled by the WebAccess/NMS, as well as IP addresses and names of all the devices managed via WebAccess/NMS.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Advantech WebAccess/NMS 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Advantech WebAccess/NMS是中国台湾研华（Advantech）公司的一套基于Web浏览器的网络管理系统（NMS）软件包。 Advantech WebAccess/NMS 存在授权问题漏洞。该漏洞源于网络系统或产品中缺少身份验证措施或身份验证强度不足。
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
Advantech WebAccess/NMS Versions ~ v3.0.3_Build6299 -

II. Public POCs for CVE-2021-32951

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III. Intelligence Information for CVE-2021-32951

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Vendor Advisories for CVE-2021-32951 (1)

IV. Related Vulnerabilities

Same product: WebAccess/NMS
Same vendor: Advantech
Same weakness: CWE-287

V. Comments for CVE-2021-32951

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