CVE-2021-38395

Honeywell Experion PKS and ACE Controllers Injection

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Honeywell Experion PKS C200, C200E, C300, and ACE controllers are vulnerable to improper neutralization of special elements in output, which may allow an attacker to remotely execute arbitrary code and cause a denial-of-service condition.

Los controladores Honeywell Experion PKS C200, C200E, C300 y ACE son vulnerables a una neutralización inadecuada de elementos especiales en la salida, lo que puede permitir a un atacante ejecutar código arbitrario de forma remota y provocar una condición de Denegación de Servicio.

*Credits: Rei Henigman and Nadav Erez of Claroty reported these vulnerabilities to CISA.

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

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-08-10 CVE Reserved
2022-10-28 CVE Published
2024-09-17 CVE Updated
2024-09-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CAPEC

References (2)

URL	Tag	Source
https://www.cisa.gov/uscert/ics/advisories/icsa-21-278-04	Mitigation
https://www.honeywellprocess.com/library/support/notifications/Customer/SN2021-02-22-01-Experion-C300-CCL.pdf	Product

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
Honeywell Search vendor "Honeywell"	C200 Firmware Search vendor "Honeywell" for product "C200 Firmware"	-	-	Affected	in	Honeywell Search vendor "Honeywell"	C200 Search vendor "Honeywell" for product "C200"	-	-	Safe
Honeywell Search vendor "Honeywell"	C200e Firmware Search vendor "Honeywell" for product "C200e Firmware"	-	-	Affected	in	Honeywell Search vendor "Honeywell"	C200e Search vendor "Honeywell" for product "C200e"	-	-	Safe
Honeywell Search vendor "Honeywell"	C300 Firmware Search vendor "Honeywell" for product "C300 Firmware"	-	-	Affected	in	Honeywell Search vendor "Honeywell"	C300 Search vendor "Honeywell" for product "C300"	-	-	Safe
Honeywell Search vendor "Honeywell"	Application Control Environment Firmware Search vendor "Honeywell" for product "Application Control Environment Firmware"	-	-	Affected	in	Honeywell Search vendor "Honeywell"	Application Control Environment Search vendor "Honeywell" for product "Application Control Environment"	-	-	Safe