CVE-2023-37021

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-37021
Open5GS MME version <= 2.6.4 contains an assertion that can be remotely triggered via a malformed ASN.1 packet over the S1AP interface. An attacker may send a `UE Context Modification Failure` message missing a required `MME_UE_S1AP_ID` field to repeatedly crash the MME, resulting in denial of service.

8.6 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

References
Link Resource
https://cellularsecurity.org/ransacked Third Party Advisory Exploit Technical Description
Configurations

Configuration 1 (hide)

cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*
History

22 Apr 2025, 17:15

Type Values Removed Values Added
CPE cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*
First Time Open5gs open5gs
Open5gs
References () https://cellularsecurity.org/ransacked - () https://cellularsecurity.org/ransacked - Third Party Advisory, Exploit, Technical Description

06 Feb 2025, 22:15

Type Values Removed Values Added
Summary
  • (es) La versión 2.6.4 de Open5GS MME contiene una aserción que se puede activar de forma remota a través de un paquete ASN.1 mal formado a través de la interfaz S1AP. Un atacante puede enviar un mensaje de "Error de modificación de contexto de UE" sin el campo "MME_UE_S1AP_ID" requerido para bloquear repetidamente el MME, lo que da como resultado la denegación de servicio.
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 8.6
CWE CWE-617

22 Jan 2025, 15:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-01-22 15:15

Updated : 2025-04-22 17:15

NVD link : CVE-2023-37021

Mitre link : CVE-2023-37021

CVE.ORG link : CVE-2023-37021

JSON object : View

Products Affected

open5gs

  • open5gs
CWE
CWE-617

Reachable Assertion