CVE-2019-5172

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An exploitable command injection vulnerability exists in the iocheckd service ‘I/O-Check’ function of the WAGO PFC 200 Firmware version 03.02.02(14). An attacker can send a specially crafted packet to trigger the parsing of this cache file. At 0x1e840 the extracted ntp value from the xml file is used as an argument to /etc/config-tools/config_sntp time-server-%d=<contents of ntp node> using sprintf(). This command is later executed via a call to system(). This is done in a loop and there is no limit to how many ntp entries will be parsed from the xml file.

Se presenta una vulnerabilidad de inyección de comando explotable en la función "I/O-Check" del servicio iocheckd de WAGO PFC 200 en la versión de firmware 03.02.02(14). Un atacante puede enviar un paquete especialmente diseñado para activar el análisis de este archivo cache. En 0x1e840, el valor ntp extraído del archivo xml es usado como argumento para /etc/config-tools/config_sntp time-server-%d=(contents of ntp node) usando la función sprintf(). Este comando luego es ejecutado por medio de una llamada a la función system(). Esto se realiza en un bucle y no hay límite para la cantidad de entradas ntp que serán analizadas desde el archivo xml.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-01-04 CVE Reserved
2020-03-11 CVE Published
2023-07-15 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0962	2024-08-04

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Wago Search vendor "Wago"	Pfc200 Firmware Search vendor "Wago" for product "Pfc200 Firmware"	03.02.02\(14\) Search vendor "Wago" for product "Pfc200 Firmware" and version "03.02.02\(14\)"	-	Affected	in	Wago Search vendor "Wago"	Pfc200 Search vendor "Wago" for product "Pfc200"	-	-	Safe