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CVE-2021-43936— Distributed Data Systems WebHM

Quick assessment

Affected
Distributed Data Systems WebHMI
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Distributed Data Systems WebHmi是乌克兰Distributed Data Systems公司的一个带有内置网络服务器的 Scada 系统。用于通过计算机和移动设备监视和控制本地网络上以及通过 Internet 的任何自动化系统。 Distributed Data Systems WebHMI 中存在代码问题漏洞，该漏洞源于产品未对上传文件类型进行有效验证。攻击者可通过上传危险文件导致任意代码执行。

CVSS 10.0 · Critical EPSS 35.80% · P98

Public Exploits 1

ExploitDB · 1 EDB-50589 [webapps]

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-43936

Vulnerability Information
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Vulnerability Title
Distributed Data Systems WebHM
Source: CVE Program / CVE List V5
Vulnerability Description
The software allows the attacker to upload or transfer files of dangerous types to the WebHMI portal, that may be automatically processed within the product's environment or lead to arbitrary code execution.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Distributed Data Systems WebHmi 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Distributed Data Systems WebHmi是乌克兰Distributed Data Systems公司的一个带有内置网络服务器的 Scada 系统。用于通过计算机和移动设备监视和控制本地网络上以及通过 Internet 的任何自动化系统。 Distributed Data Systems WebHMI 中存在代码问题漏洞，该漏洞源于产品未对上传文件类型进行有效验证。攻击者可通过上传危险文件导致任意代码执行。
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
Distributed Data Systems WebHMI 4.1 ~ 4.1 -

II. Public POCs for CVE-2021-43936

# POC Description Source Link Shenlong Link
1 CVE-2021-43936 is a critical vulnerability (CVSS3 10.0) leading to Remote Code Execution (RCE) in WebHMI Firmware. https://github.com/LongWayHomie/CVE-2021-43936 POC Details
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III. Intelligence Information for CVE-2021-43936

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Vendor Advisories for CVE-2021-43936 (1)

Exploits & Public PoCs for CVE-2021-43936 (1)

IV. Related Vulnerabilities

Same product: WebHMI
Same vendor: Distributed Data Systems

V. Comments for CVE-2021-43936

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