Contec CONPROSYS HMI System (CHS) OS Command Injection (CVE-2022-44456)

critical Nessus Plugin ID 172391


A web application is affected by an OS command injection vulnerability.


The Contec CONPROSYS HMI System (CHS) running on the remote host is affected by an OS command injection vulnerability. An unauthenticated, remote attacker can exploit this, via a specially crafted message, to execute arbitrary OS commands under the security context of the account running the CHS web application.


Upgrade CONPROSYS HMI System (CHS) to version 3.4.5 or later.

See Also

Plugin Details

Severity: Critical

ID: 172391

File Name: contec_chs_cve-2022-44456.nbin

Version: 1.21

Type: remote

Family: SCADA

Published: 3/9/2023

Updated: 5/20/2024

Supported Sensors: Nessus

Risk Information


Risk Factor: Medium

Score: 5.9


Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2022-44456


Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:contec:conprosys_hmi_system

Required KB Items: installed_sw/Contec CONPROSYS HMI System

Exploit Available: true

Exploit Ease: Exploits are available

Exploited by Nessus: true

Patch Publication Date: 12/14/2022

Vulnerability Publication Date: 12/14/2022

Reference Information

CVE: CVE-2022-44456