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CVE-2021-33023— Advantech WebAccess

Quick assessment

Affected
Advantech WebAccess
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是中国台湾研华（Advantech）公司的一套基于浏览器架构的HMI/SCADA软件。该软件支持动态图形显示和实时数据控制，并提供远程控制和管理自动化设备的功能。 Advantech WebAccess 9.02及之前版本存在安全漏洞，攻击者可利用该漏洞远程执行代码。

CVSS 9.8 · Critical EPSS 2.35% · P83

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-33023

Vulnerability Information
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Vulnerability Title
Advantech WebAccess
Source: CVE Program / CVE List V5
Vulnerability Description
Advantech WebAccess versions 9.02 and prior are vulnerable to a heap-based buffer overflow, which may allow an attacker to remotely execute code.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Advantech WebAccess 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Advantech WebAccess是中国台湾研华（Advantech）公司的一套基于浏览器架构的HMI/SCADA软件。该软件支持动态图形显示和实时数据控制，并提供远程控制和管理自动化设备的功能。 Advantech WebAccess 9.02及之前版本存在安全漏洞，攻击者可利用该漏洞远程执行代码。
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 All ~ 9.02 -

II. Public POCs for CVE-2021-33023

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III. Intelligence Information for CVE-2021-33023

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Vendor Advisories for CVE-2021-33023 (1)

IV. Related Vulnerabilities

Same product: WebAccess
Same vendor: Advantech
Same weakness: CWE-122

V. Comments for CVE-2021-33023

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