VDB-241197 · CVE-2023-4885 · GCVE-0-2023-4885

Open5GS Virtual Network Function channel accessible

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.
5.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Open5GS. It has been classified as problematic. Affected by this vulnerability is an unknown functionality of the component Virtual Network Function. Performing a manipulation results in channel accessible. This vulnerability is reported as CVE-2023-4885. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Open5GS (unknown version). It has been classified as problematic. This affects an unknown code block of the component Virtual Network Function. The manipulation with an unknown input leads to a channel accessible vulnerability. CWE is classifying the issue as CWE-300. The product does not adequately verify the identity of actors at both ends of a communication channel, or does not adequately ensure the integrity of the channel, in a way that allows the channel to be accessed or influenced by an actor that is not an endpoint. This is going to have an impact on confidentiality. The summary by CVE is:

Man in the Middle vulnerability, which could allow an attacker to intercept VNF (Virtual Network Function) communications resulting in the exposure of sensitive information.

The weakness was disclosed 10/03/2023. The advisory is shared at incibe.es. This vulnerability is uniquely identified as CVE-2023-4885 since 09/11/2023. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/25/2023). MITRE ATT&CK project uses the attack technique T1557 for this issue.

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

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Productinfo

Name

Open5GS

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 3.7
VulDB Temp Score: 3.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CNA Base Score: 6.5
CNA Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Channel accessible
CWE: CWE-300
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

09/11/2023 🔍
10/03/2023 +22 days 🔍
10/03/2023 +0 days 🔍
10/25/2023 +22 days 🔍

Sourcesinfo

Advisory: incibe.es
Status: Not defined

CVE: CVE-2023-4885 (🔍)
GCVE (CVE): GCVE-0-2023-4885
GCVE (VulDB): GCVE-100-241197

Entryinfo

Created: 10/03/2023 17:59
Updated: 10/25/2023 08:38
Changes: 10/03/2023 17:59 (44), 10/25/2023 08:38 (11)
Complete: 🔍
Cache ID: 216::103