CVE-2021-20599 Vulnerability Details

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CVE-2021-20599 Metadata Quick Info

CVE Published: 14/10/2021 | CVE Updated: 03/08/2024 | CVE Year: 2021
Source: Mitsubishi | Vendor: Mitsubishi Electric Corporation | Product: MELSEC iQ-R Series Safety CPU R08SFCPU
Status : PUBLISHED

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CVE-2021-20599 Description

Cleartext Transmission of Sensitive InformationCleartext transmission of sensitive information vulnerability in MELSEC iQ-R series Safety CPU R08/16/32/120SFCPU firmware versions "26" and prior and MELSEC iQ-R series SIL2 Process CPU R08/16/32/120PSFCPU firmware versions "11" and prior allows a remote unauthenticated attacker to login to a target CPU module by obtaining credentials other than password.

Metrics

CVSS Version: 3.1 | Base Score: 9.1 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

l➤ Exploitability Metrics:
    Attack Vector (AV)* NETWORK
    Attack Complexity (AC)* LOW
    Privileges Required (PR)* NONE
    User Interaction (UI)* NONE
    Scope (S)* UNCHANGED

l➤ Impact Metrics:
    Confidentiality Impact (C)* HIGH
    Integrity Impact (I)* HIGH
    Availability Impact (A)* NONE

Weakness Enumeration (CWE)

CWE-ID: CWE-319
CWE Name: CWE-319 Cleartext Transmission of Sensitive Information
Source: Mitsubishi Electric Corporation

Common Attack Pattern Enumeration and Classification (CAPEC)

CAPEC-ID: CAPEC-115
CAPEC Description: CAPEC-115 Authentication Bypass


Source: NVD (National Vulnerability Database).