VDB-292964 · CVE-2023-37013 · GCVE-0-2023-37013

Open5GS MME up to 2.6.4 S1AP Packet ogs_sctp_recvmsg denial of service

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.4	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic was found in Open5GS MME up to 2.6.4. Affected by this issue is the function ogs_sctp_recvmsg of the component S1AP Packet Handler. Such manipulation leads to denial of service. This vulnerability is traded as CVE-2023-37013. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Open5GS MME up to 2.6.4 and classified as critical. Affected by this issue is the function ogs_sctp_recvmsg of the component S1AP Packet Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

Open5GS MME versions <= 2.6.4 contains an assertion that can be remotely triggered via a sufficiently large ASN.1 packet over the S1AP interface. An attacker may repeatedly send such an oversized packet to cause the `ogs_sctp_recvmsg` routine to reach an unexpected network state and crash, leading to denial of service.

The advisory is shared for download at cellularsecurity.org. This vulnerability is handled as CVE-2023-37013 since 06/28/2023. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1499.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Open5GS

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.5
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.3
CNA Vector (MITRE): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/28/2023 🔍
01/22/2025 +574 days 🔍
01/22/2025 +0 days 🔍
01/24/2025 +2 days 🔍

Sourcesinfo

Advisory: cellularsecurity.org
Status: Not defined

CVE: CVE-2023-37013 (🔍)
GCVE (CVE): GCVE-0-2023-37013
GCVE (VulDB): GCVE-100-292964

Entryinfo

Created: 01/22/2025 16:28
Updated: 01/24/2025 09:22
Changes: 01/22/2025 16:28 (5), 01/22/2025 16:29 (15), 01/22/2025 16:32 (34), 01/24/2025 09:22 (12)
Complete: 🔍
Committer: mitr
Cache ID: 216::103