CVE-2021-34566 Vulnerability Details

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CVE-2021-34566 Metadata Quick Info

CVE Published: 09/11/2022 | CVE Updated: 04/08/2024 | CVE Year: 2021
Source: CERTVDE | Vendor: WAGO | Product: 750-81xx/xxx-xxxFW
Status : PUBLISHED

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CVE-2021-34566 Description

In WAGO I/O-Check Service in multiple products an unauthenticated remote attacker can send a specially crafted packet containing OS commands to crash the iocheck process and write memory resulting in loss of integrity and DoS.

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:N/I:H/A:H

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)* NONE
    Integrity Impact (I)* HIGH
    Availability Impact (A)* HIGH

Weakness Enumeration (CWE)

CWE-ID: CWE-120
CWE Name: CWE-120 Buffer Copy without Checking Size of Input ( Classic Buffer Overflow )
Source: WAGO

Common Attack Pattern Enumeration and Classification (CAPEC)

CAPEC-ID: CAPEC-100
CAPEC Description: CAPEC-100 Overflow Buffers


Source: NVD (National Vulnerability Database).