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CVE-2021-20826

Quick assessment

Affected
IDEC Corporation IDEC PLC
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.

IDEC PLC是一个可编程控制器。 IDEC PLC 存在安全漏洞，攻击者可以从 PLC 和软件之间的通信中获取 PLC Web 服务器用户凭据。以下产品及版本收到影响：FC6A Series MICROSmart All-in-One CPU module v2.32 and earlier, FC6A Series MICROSmart Plus CPU module v1.91 and earlier, WindLDR v8.19.1 and earlier, WindEDIT Lite v1.3

AI Predicted 8.1 Difficulty: Easy EPSS 0.39% · P32

Possible ATT&CK Techniques 1 AI

T1552.005 · Cloud Instance Metadata API
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I. Basic Information for CVE-2021-20826

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Unprotected transport of credentials vulnerability in IDEC PLCs (FC6A Series MICROSmart All-in-One CPU module v2.32 and earlier, FC6A Series MICROSmart Plus CPU module v1.91 and earlier, WindLDR v8.19.1 and earlier, WindEDIT Lite v1.3.1 and earlier, and Data File Manager v2.12.1 and earlier) allows an attacker to obtain the PLC Web server user credentials from the communication between the PLC and the software. As a result, the complete access privileges to the PLC Web server may be obtained, and manipulation of the PLC output and/or suspension of the PLC may be conducted.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
IDEC PLC安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
IDEC PLC是一个可编程控制器。 IDEC PLC 存在安全漏洞，攻击者可以从 PLC 和软件之间的通信中获取 PLC Web 服务器用户凭据。以下产品及版本收到影响：FC6A Series MICROSmart All-in-One CPU module v2.32 and earlier, FC6A Series MICROSmart Plus CPU module v1.91 and earlier, WindLDR v8.19.1 and earlier, WindEDIT Lite v1.3
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
IDEC Corporation IDEC PLC FC6A Series MICROSmart All-in-One CPU module v2.32 and earlier, FC6A Series MICROSmart Plus CPU module v1.91 and earlier, WindLDR v8.19.1 and earlier, WindEDIT Lite v1.3.1 and earlier, and Data File Manager v2.12.1 and earlier -

II. Public POCs for CVE-2021-20826

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III. Intelligence Information for CVE-2021-20826

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Vendor Advisories for CVE-2021-20826 (1)

Other References for CVE-2021-20826 (1)

IV. Related Vulnerabilities

Same product: IDEC PLC
Same vendor: IDEC Corporation

V. Comments for CVE-2021-20826

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