CVE Vulnerability

CVE-2021-20826

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.

3.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 6.5 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

7.6 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 4.7

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References
Link Resource
https://www.idec.com/home/lp/pdf/2021-12-24-PLC.pdf Vendor Advisory
https://jvn.jp/en/vu/JVNVU92279973/index.html Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:idec:data_file_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:idec:windedit:*:*:*:*:*:*:*:*
cpe:2.3:a:idec:windldr:*:*:*:*:*:*:*:*
Information

Published : 2021-12-24 07:15

Updated : 2022-01-11 06:18

NVD link : CVE-2021-20826

Mitre link : CVE-2021-20826

Products Affected
No products.
CWE
CWE-522