CVE-2019-5149

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The WBM web application on firmwares prior to 03.02.02 and 03.01.07 on the WAGO PFC100 and PFC2000, respectively, runs on a lighttpd web server and makes use of the FastCGI module, which is intended to provide high performance for all Internet applications without the penalties of Web server APIs. However, the default configuration of this module appears to limit the number of concurrent php-cgi processes to two, which can be abused to cause a denial of service of the entire web server. This affects WAGO PFC200 Firmware version 03.00.39(12) and version 03.01.07(13), and WAGO PFC100 Firmware version 03.00.39(12) and version 03.02.02(14).

La aplicación web WBM en WAGO PFC100 y PFC2000, versiones de firmware anteriores a las versiones 03.02.02 y 03.01.07 respectivamente, se ejecuta en un servidor web lighttpd y hace uso del módulo FastCGI, que está destinado a proporcionar un alto rendimiento para todas las aplicaciones de Internet sin las penalizaciones de las API del servidor web. Sin embargo, la configuración predeterminada de este módulo parece limitar el número de procesos concurrentes de php-cgi a dos, lo cual puede ser violado para causar una denegación de servicio de todo el servidor web. Esto afecta a WAGO PFC200 versión de firmware 03.00.39(12) y versión 03.01.07(13), y WAGO PFC100 versión de firmware 03.00.39(12) y versión 03.02.02(14).

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-01-04 CVE Reserved
2020-03-10 CVE Published
2023-07-08 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-400: Uncontrolled Resource Consumption

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0939	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"	03.00.39\(12\) Search vendor "Wago" for product "Pfc200 Firmware" and version "03.00.39\(12\)"	-	Affected	in	Wago Search vendor "Wago"	Pfc200 Search vendor "Wago" for product "Pfc200"	-	-	Safe
Wago Search vendor "Wago"	Pfc200 Firmware Search vendor "Wago" for product "Pfc200 Firmware"	03.01.07\(13\) Search vendor "Wago" for product "Pfc200 Firmware" and version "03.01.07\(13\)"	-	Affected	in	Wago Search vendor "Wago"	Pfc200 Search vendor "Wago" for product "Pfc200"	-	-	Safe
Wago Search vendor "Wago"	Pfc100 Firmware Search vendor "Wago" for product "Pfc100 Firmware"	03.00.39\(12\) Search vendor "Wago" for product "Pfc100 Firmware" and version "03.00.39\(12\)"	-	Affected	in	Wago Search vendor "Wago"	Pfc100 Search vendor "Wago" for product "Pfc100"	-	-	Safe
Wago Search vendor "Wago"	Pfc100 Firmware Search vendor "Wago" for product "Pfc100 Firmware"	03.01.07\(13\) Search vendor "Wago" for product "Pfc100 Firmware" and version "03.01.07\(13\)"	-	Affected	in	Wago Search vendor "Wago"	Pfc100 Search vendor "Wago" for product "Pfc100"	-	-	Safe