// For flags

CVE-2024-25994

PHOENIX CONTACT: Unintended script file upload in CHARX Series

Severity Score

5.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

An unauthenticated remote attacker can upload a arbitrary script file due to improper input validation. The upload destination is fixed and is write only.

Un atacante remoto no autenticado puede cargar un archivo de script arbitrario debido a una validación de entrada incorrecta. El destino de carga es fijo y es de solo escritura.

This vulnerability allows network-adjacent attackers to create arbitrary files on affected installations of Phoenix Contact CHARX SEC-3100 devices. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the CharxUpdateAgent service, which listens on TCP port 9999 by default. The issue results from the lack of proper validation of user-supplied data, which can allow the upload of arbitrary files. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the service account.

*Credits: Alex Plaskett of NCC Group, McClaulay Hudson of NCC Group
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-02-14 CVE Reserved
  • 2024-03-12 CVE Published
  • 2024-06-24 EPSS Updated
  • 2024-08-01 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
PHOENIX CONTACT
Search vendor "PHOENIX CONTACT"
 CHARX SEC-3000
Search vendor "PHOENIX CONTACT" for product "CHARX SEC-3000"
 <= 1.5.0
Search vendor "PHOENIX CONTACT" for product "CHARX SEC-3000" and version " <= 1.5.0"
en
Affected
PHOENIX CONTACT
Search vendor "PHOENIX CONTACT"
 CHARX SEC-3050
Search vendor "PHOENIX CONTACT" for product "CHARX SEC-3050"
 <= 1.5.0
Search vendor "PHOENIX CONTACT" for product "CHARX SEC-3050" and version " <= 1.5.0"
en
Affected
PHOENIX CONTACT
Search vendor "PHOENIX CONTACT"
 CHARX SEC-3100
Search vendor "PHOENIX CONTACT" for product "CHARX SEC-3100"
 <= 1.5.0
Search vendor "PHOENIX CONTACT" for product "CHARX SEC-3100" and version " <= 1.5.0"
en
Affected
PHOENIX CONTACT
Search vendor "PHOENIX CONTACT"
 CHARX SEC-3150
Search vendor "PHOENIX CONTACT" for product "CHARX SEC-3150"
 <= 1.5.0
Search vendor "PHOENIX CONTACT" for product "CHARX SEC-3150" and version " <= 1.5.0"
en
Affected