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    CVE-2021-20827

    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.

    Published:Dec 24, 2021
    Last Modified:Nov 21, 2024
    EPS:Dec 24, 2021
    EPSS Score:0.00151
    CVSS Score:7.5

    Affected Products

    Vendor
    Idec
    Product
    Data File Manager
    Vendor
    Idec
    Product
    Microsmart Fc6a
    Vendor
    Idec
    Product
    Microsmart Fc6a Firmware
    Vendor
    Idec
    Product
    Microsmart Plus Fc6a
    Vendor
    Idec
    Product
    Microsmart Plus Fc6a Firmware
    Vendor
    Idec
    Product
    Windedit
    Vendor
    Idec
    Product
    Windldr

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-37 Retrieve Embedded Sensitive Data

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High