CVE-2019-5178

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 stack buffer overflow vulnerability vulnerability exists in the iocheckd service ‘I/O-Check’ functionality of 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. The destination buffer sp+0x440 is overflowed with the call to sprintf() for any hostname values that are greater than 1024-len(‘/etc/config-tools/change_hostname hostname=‘) in length. A hostname value of length 0x3fd will cause the service to crash.

Se presenta una vulnerabilidad de desbordamiento del búfer de la pila explotable en la funcionalidad "I-O-Check" del servicio iocheckd de WAGO PFC 200 versiones de Firmware 03.02.02(14). Un atacante puede enviar un paquete especialmente diseñado para activar el análisis de este archivo cache. El búfer de destino sp+0x440 es desbordado con la llamada a la función sprintf() para cualquier valor de nombre de host que sea mayor que 1024-len (‘/etc/config-tools/change_hostname hostname=‘) en longitud. Un valor de nombre de host de longitud 0x3fd causará que el servicio se bloquee.

*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

Partial

Integrity

Partial

Availability

Partial

* 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-787: Out-of-bounds Write

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0963	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