Wago PFC200 iocheckd service 'I/O-Check' cache Command Injection (CVE-2019-5168)

high Tenable OT Security Plugin ID 500801

Synopsis

The remote OT asset is affected by a vulnerability.

Description

An exploitable command injection vulnerability exists in the iocheckd service I/O-Check' function of the WAGO PFC 200 version 03.02.02(14).
An attacker can send a specially crafted XML cache file At 0x1e8a8 the extracted domainname value from the xml file is used as an argument to /etc/config-tools/edit_dns_server domain-name=<contents of domainname node> using sprintf().This command is later executed via a call to system().

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

Refer to the vendor advisory.

Plugin Details

Severity: High

ID: 500801

Version: 1.2

Type: remote

Family: Tenable.ot

Published: 2/14/2023

Updated: 9/4/2023

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

CVSS Score Source: CVE-2019-5168

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

Vector: CVSS:3.0/AV:L/AC:L/PR:L/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:/o:wago:pfc200_firmware:03.02.02%2814%29

Required KB Items: Tenable.ot/Wago

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/11/2020

Vulnerability Publication Date: 3/11/2020

Reference Information

CVE: CVE-2019-5168

CWE: 78

Detections

Analytics