CVE-2018-16558

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability has been identified in SIMATIC S7-1500 CPU (All versions >= V2.0 and < V2.5), SIMATIC S7-1500 CPU (All versions <= V1.8.5). Specially crafted network packets sent to port 80/tcp or 443/tcp could allow an unauthenticated remote attacker to cause a Denial-of-Service condition of the device. The security vulnerability could be exploited by an attacker with network access to the affected systems on port 80/tcp or 443/tcp. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise availability of the device. At the time of advisory publication no public exploitation of this security vulnerability was known.

Se ha identificado una vulnerabilidad en la CPU SIMATIC S7-1500 (todas las versiones mayores o iguales a V2.0 y anteriores a la V2.5), la CPU SIMATIC S7-1500 (todas las versiones anteriores o iguales a V1.8.5). Los paquetes de red especialmente creados que se envían al puerto 80/tcp o 443/tcp podrían permitir que un atacante remoto no autenticado provoque una condición de denegación de servicio (DoS) del dispositivo. La vulnerabilidad de la seguridad podría ser explotada por un atacante con acceso de red a los sistemas afectados en el puerto 80/tcp o 443/tcp. La explotación con éxito no requiere privilegios del sistema ni interacción con el usuario. Un atacante podría usar la vulnerabilidad para comprometer la disponibilidad del dispositivo. En el momento de la publicación de asesoramiento, no se conocía la explotación pública de esta vulnerabilidad de seguridad.

*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

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-09-06 CVE Reserved
2019-04-17 CVE Published
2023-03-07 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://cert-portal.siemens.com/productcert/pdf/ssa-180635.pdf	2019-04-18

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Siemens Search vendor "Siemens"	Simatic S7-1500 Firmware Search vendor "Siemens" for product "Simatic S7-1500 Firmware"	<= 1.8.5 Search vendor "Siemens" for product "Simatic S7-1500 Firmware" and version " <= 1.8.5"	-	Affected	in	Siemens Search vendor "Siemens"	Simatic S7-1500 Search vendor "Siemens" for product "Simatic S7-1500"	-	-	Safe
Siemens Search vendor "Siemens"	Simatic S7-1500 Firmware Search vendor "Siemens" for product "Simatic S7-1500 Firmware"	>= 2.0 < 2.5 Search vendor "Siemens" for product "Simatic S7-1500 Firmware" and version " >= 2.0 < 2.5"	-	Affected	in	Siemens Search vendor "Siemens"	Simatic S7-1500 Search vendor "Siemens" for product "Simatic S7-1500"	-	-	Safe