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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-20827 Detail

Description

Plaintext storage of a password 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 file servers, backup repositories, or ZLD files saved in SD cards. As a result, the attacker may access the PLC Web server and hijack the PLC, and manipulation of the PLC output and/or suspension of the PLC may be conducted.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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

Weakness Enumeration

CWE-ID CWE Name Source
CWE-312 Cleartext Storage of Sensitive Information cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-20827
NVD Published Date:
12/24/2021
NVD Last Modified:
11/21/2024
Source:
JPCERT/CC