Denial of Service Vulnerability in Open5GS MME by Open5GS Team
CVE-2023-37004

5.3MEDIUM

Key Information:

Vendor

Open5GS Team

Status
Open5GS MME
Vendor
CVE Published:
22 January 2025

What is CVE-2023-37004?

Open5GS MME versions up to 2.6.4 are susceptible to a remote denial of service attack. An attacker can exploit this vulnerability by sending a malformed ASN.1 packet through the S1AP interface, specifically by delivering an Initial Context Setup Response message that lacks the essential MME_UE_S1AP_ID field. This manipulation can cause the MME to crash repeatedly, effectively leading to a service outage.

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-2023-37004 : Denial of Service Vulnerability in Open5GS MME by Open5GS Team