CVE-2021-38399

Honeywell Experion PKS and ACE Controllers Relative Path Traversal

Severity Score

7.5

*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 relative path traversal, which may allow an attacker access to unauthorized files and directories.

Los controladores Honeywell Experion PKS C200, C200E, C300 y ACE son vulnerables al Path Traversal relativa, lo que puede permitir que un atacante acceda a archivos y directorios no autorizados.

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

CVSS Scores

NISTv3.1 7.5

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

* 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-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-23: Relative Path Traversal

CAPEC

References (2)

URL	Tag	Source
https://www.cisa.gov/uscert/ics/advisories/icsa-21-278-04	Third Party Advisory
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