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CVE-2021-47770— OpenPLC 3 - Remote Code Execution

Quick assessment

Affected
Autonomy OpenPLC
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.

OpenPLC是Thiago Alves个人开发者的一种开源的可编程逻辑控制器。可为自动化和研究提供低成本的工业解决方案。 OpenPLC v3版本存在代码注入漏洞，该漏洞源于通过硬件配置接口存在经过身份验证的远程代码执行，可能导致执行恶意代码。

CVSS 8.8 · High EPSS 0.66% · P49

Affected Version Matrix 1

VendorProduct Version RangeStatus
Autonomy OpenPLC OpenPLC v3 affected
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I. Basic Information for CVE-2021-47770

Vulnerability Information
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Vulnerability Title
OpenPLC 3 - Remote Code Execution
Source: CVE Program / CVE List V5
Vulnerability Description
OpenPLC v3 contains an authenticated remote code execution vulnerability that allows attackers with valid credentials to inject malicious code through the hardware configuration interface. Attackers can upload a custom hardware layer with embedded reverse shell code that establishes a network connection to a specified IP and port, enabling remote command execution.
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
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
OpenPLC 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenPLC是Thiago Alves个人开发者的一种开源的可编程逻辑控制器。可为自动化和研究提供低成本的工业解决方案。 OpenPLC v3版本存在代码注入漏洞，该漏洞源于通过硬件配置接口存在经过身份验证的远程代码执行，可能导致执行恶意代码。
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
Autonomy OpenPLC OpenPLC v3 -

II. Public POCs for CVE-2021-47770

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III. Intelligence Information for CVE-2021-47770

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Vendor Pages for CVE-2021-47770 (1)

IV. Related Vulnerabilities

Same product: OpenPLC
Same weakness: CWE-94

V. Comments for CVE-2021-47770

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