Remote Denial of Service Vulnerability in Open5GS MME by Open5GS
CVE-2023-37003

5.3MEDIUM

Key Information:

Vendor

Open5GS

Status
Open5GS MME
Vendor
CVE Published:
22 January 2025

What is CVE-2023-37003?

Open5GS MME versions up to 2.6.4 are susceptible to a remote denial of service attack. This vulnerability arises from an assertion that can be triggered by sending a malformed ASN.1 packet over the S1AP interface. An attacker could exploit this flaw by issuing an 'E-RAB Setup Response' message that lacks the mandatory 'MME_UE_S1AP_ID' field, potentially leading to repeated crashes of the MME. This behavior disrupts service availability and could significantly impact the functionality of the network.

References

https://cellularsecurity.org/ransacked

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2023-37003 : Remote Denial of Service Vulnerability in Open5GS MME by Open5GS