CVE-2021-27388

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

SINAMICS medium voltage routable products are affected by a vulnerability in the Sm@rtServer component for remote access that could allow an unauthenticated attacker to cause a denial-of-service condition, and/or execution of limited configuration modifications and/or execution of limited control commands on the SINAMICS Medium Voltage Products, Remote Access (SINAMICS SL150: All versions, SINAMICS SM150: All versions, SINAMICS SM150i: All versions).

Los productos enrutables de tensión media SINAMICS están afectados por una vulnerabilidad en el componente Sm@rtServer para el acceso remoto que podría permitir a un atacante no autenticado causar una condición de denegación de servicio, y/o una ejecución de modificaciones de configuración limitadas y/o la ejecución de comandos de control limitados en los productos de media tensión SINAMICS, acceso remoto (SINAMICS SL150: Todas las versiones, SINAMICS SM150: Todas las versiones, SINAMICS SM150i: Todas las versiones)

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

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

2021-02-18 CVE Reserved
2021-06-15 CVE Published
2024-05-21 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (1)

URL	Tag	Source
https://us-cert.cisa.gov/ics/advisories/icsa-21-131-04	Not Applicable

URL	Date	SRC

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
Siemens Search vendor "Siemens"	Sinamics Sl150 Firmware Search vendor "Siemens" for product "Sinamics Sl150 Firmware"	*	-	Affected	in	Siemens Search vendor "Siemens"	Sinamics Sl150 Search vendor "Siemens" for product "Sinamics Sl150"	-	-	Safe
Siemens Search vendor "Siemens"	Sinamics Sm150 Firmware Search vendor "Siemens" for product "Sinamics Sm150 Firmware"	*	-	Affected	in	Siemens Search vendor "Siemens"	Sinamics Sm150 Search vendor "Siemens" for product "Sinamics Sm150"	-	-	Safe
Siemens Search vendor "Siemens"	Sinamics Sm150i Firmware Search vendor "Siemens" for product "Sinamics Sm150i Firmware"	*	-	Affected	in	Siemens Search vendor "Siemens"	Sinamics Sm150i Search vendor "Siemens" for product "Sinamics Sm150i"	-	-	Safe